POLYISOCYANATES AND PREPOLYMERS Desmodur ® | Bayhydur ® | Desmotherm ® | Bayhytherm ® Desmoseal ® | Imprafix ® | Baybond ® | Crelan ®
POLYISOCYANATES AND PREPOLYMERS
Desmodur® | Bayhydur® | Desmotherm® | Bayhytherm®
Desmoseal® | Imprafix® | Baybond® | Crelan®
3
Contents
Our Mission: INVENTING FOR YOU 4 – 5
Building blocks for supply security, efficiency
and sustainability 6 – 7
Polyisocyanates and prepolymers –
Grades with shining properties 8 – 9
Applications – Highlights 10
Our product portfolio 12 – 41
TDI-based
Desmodur® 12 –15
MDI-based
Desmodur® 16 –17
PMDI-based
Desmodur® 18 –19
Silane-terminated
Desmoseal® S 18 –19
MDI-based prepolymers
Desmodur®/Desmoseal® 20 – 21
HDI-based
Desmodur® N 22 – 25
IPDI-based
Desmodur® XP/Z 26 – 27
Aliphatic prepolymers
Desmodur® 28 – 29
Hydrophilic modified polyisocyanates
Bayhydur® 30 – 31
Hydrophilic modified polyisocyanates
Desmodur® D 32 – 33
Special waterborne grades
Desmodur® 32 – 33
Special grades
Desmodur® R/quix 32 – 33
Blocked grades
Desmodur® BL 34 – 35
Self-crosslinking baking urethane resins
Desmotherm® 36 – 37
Waterborne blocked grades
Bayhydur® BL/Baybond® XL/Imprafix® 38 – 39
Waterborne self-crosslinking
baking urethane resins
Bayhytherm® 38 – 39
Powder hardeners
Crelan® 40 – 41
Fast-lane access to
polyurethane innovations 42 – 43
5
As your leading partner for polyurethane chemistry,
we know you are competing in increasingly chal
lenging environments: Your customers are becom
ing more and more demanding in their expecta
tions for quality, durability, sustainability and
aesthetics of products. And they have more
choices. For you this means that cost pressure is
rising – while innovation cycles are becoming fas
ter and faster.
So what you are asking for quite rightly is to make
our invention power work for you – by improving
your productivity, driving sustainability, ensuring
reliability and cocreating future proof businesses.
Thus, we are committed to constantly search for
things that will make a real difference to you.
Things that will make your business grow, help
you drive profitability, make your solutions safer.
This we do with a very specific understanding of
innovation which we call inventing.
Inventing always starts with thinking about your
unmet business challenges. It requires an in
depth understanding of your needs along the
whole value chain – and building and fostering
close and trustful partnership with you. To make
sure: What we invent stands the test of time.
Living up to this aspiration needs more than com
petencies – it needs a corporate culture defined
and lived by dedicated people who share a set of
fundamental values. An attitude of openness that
invites you to cocreate new things – rather enab
ling you than just providing. An unrivaled perfor
mance orientation to constantly strive for the bet
ter, be it through big or small changes. A true
sense of business regardless of function. And a
deep commitment to delivering our promise every
day. Anywhere. Again and again.
INVENTING FOR YOU.
6
High coating performance –
enabled by nature
Sustainability drives innovation at Bayer. We
are committed to optimizing our manufacturing
processes, reducing the impact of logistics, and
enabling sustainability along the value chains.
Renewable feedstocks offer opportunities for
developing more sustainable building blocks for
coating solutions – with significant potential for
reducing the carbon footprint of end products
while also reducing our overall dependence on
fossil-based resources. But to make more sus-
tainable solutions not just possible but also
economically feasible, the performance of all
our feedstocks needs to satisfy high industry
standards. To this end, we are evaluating the use
of renewable raw materials and will enlarge our
product portfolio with new bio-based and mid- to
long-term cost-competitive products, provided
the raw materials become commercially available.
In all these efforts we are committed to focus-
ing on products that perform at least as well as
established products but are at the same time
more sustainable.
Outstanding quality and supply security –
worldwide
Bayer MaterialScience, the world’s leading manu-
facturer of aliphatic and aromatic isocyanates,
offers an extensive range of raw materials and
services for the coatings and adhesives industry.
This allows the very latest technology to be used
extremely effectively for a variety of applications.
Thanks to its unique setup and worldwide network
of state-of-the-art production sites, R&D facilities
and customer technical centers, industry-leading
supply chain setup, global orientation and local
stocks, extremely large product portfolio, highest
health, safety and environmental (HSE) standards,
as well as tailored supply chain flexibility with short
lead times, Bayer MaterialScience offers the indus-
try unrivalled supply security and assured quality.
Solutions to enhance your process efficiency
Nowadays, the quality demands made on indus-
trial processes are very high. But at the time,
there is a clear need to cut costs. Both goals can
be achieved by increasing process efficiency. At
Bayer we have a wide range of solutions designed
to enhance your process efficiency. Why not take
advantage of our know-how? These solutions will
be good for your bottom line.
Building blocks for supply security, efficiency and sustainability
9
thane coatings and adhesives, blocked polyiso-
cyanates for 1K polyurethane baking coatings
or hydrophilized polyisocyanates as crosslinkers
for water-reducible polyurethane systems, our
products come into play wherever crosslinking
is used to achieve high resistances and reliable
adhesion under efficient conditions. Our solutions
are in use today in a variety of applications, such
as automotive OEMs, automotive refinishing, and
coatings for wood, industrial goods and plastics.
They are also used in reactive adhesives, textile
coatings, and anticorrosion coatings.
Customized properties
Gloss, leveling, scratch resistance, hardness and
flexibility can be precisely adjusted by the choice
of polyisocyanate and polyol. Chemical resist-
ance, adhesion, light fastness and weather sta-
bility are additional properties that can be indi-
vidually adapted to your specific requirements.
Moreover, coatings with easy-to-clean, soft-touch
or reflow properties can also be produced through
smart formulations.
Flexibility in prepolymers
Our product range of prepolymers comprises aro-
matic and aliphatic NCO- and silane- terminated
products. These prepolymers make a wide range
of properties possible in coatings, adhesives and
sealants. The typical areas of application include
wood coatings, corrosion protection, floor coat-
ings, elastic adhesives in transportation, parquet
adhesives, engineered wood constructions, flex-
ible film lamination, and sealants. Prepolymers
with a low fraction of non-polymer-bound compo-
nents open up formulation options for producing
reactive polyurethane adhesive and sealants that
are not subject to labeling requirements.
Pioneering polyurethane chemistry
Ever since the discovery by Otto Bayer of the
poly isocyanate-polyaddition process in 1937,
Bayer has pioneered polyurethane chemistry. 50
years ago, Bayer developed the first applica-
tions using polyisocyanates for the coatings and
adhesives sectors. We work closely with our cus-
tomers to systematically advance the state of the
art in polyurethane technology. Using market-ori-
ented research and development, we specifically
adapt our product portfolio to our customers’
increasingly stringent requirements. Together with
you, we want to continue our successful journey
along this path.
Wide variety of applications
Our polyisocyanates comprise a broad range of
products for one and two-component (1K/2K)
polyurethane systems used in numerous applica-
tions. Whether as crosslinkers for 2K polyure-
Grades with shining properties
POLYISOCYANATES AND PREPOLYMERS:
10
Highlights
APPLICATIONS
... Coatings of glass ... Floor coatings
... Adhesives for modern timber constructions
... Coating of wood and furniture ... Coating of agriculture equipments
... Automotive coatings ... Coatings of plastics
... Marine coatings
... Sealant applications
12
Desmodur® T65N 48 67.0 3 2 90 100/40
Desmodur® T80 48 80.5 3 2 90 100/40 Stabilizer: Irganox® 1076 FD
Desmodur® T100 48 ≥ 99.0 3 2 90 20/20 Stabilizer: Irganox® 1076 FD
NCO APPROX. [WT. %]
VISC. AT 25 °C APPROX. [mPa • s]
2,4-TDI CONTENT [WT. %] FUNCTIONALITY
SUPPLY FORM APPROX. [%]
TYPE NCO (SUPPLY FORM) APPROX. [%]
VISC. AT 23 °C APPROX. [mPa • s]
Desmodur® L 75 TDI Adduct 75 EA 13.3 315 1,600
Standard crosslinker with broad range of applications, e.g. chemically resistant coatings, anti-corrosion coatings, industrial coatings, wood and furniture finishes, concrete coatings
Desmodur® L 67 MPA/X TDI Adduct 67 MPA/X 11.9 350 1,600 See L 75
Desmodur® L 67 BA TDI Adduct 67 BA 11.9 350 600 See L 75
Desmodur® IL BA TDI Isocyanurate 51 BA 8.0 525 2,000Very hard and very fast-drying coatings for wood, furniture and paper
Desmodur® IL EA TDI Isocyanurate 51 EA 8.0 525 700 See IL BA
Desmodur® IL 1351 BA TDI Isocyanurate 51 BA 8.0 525 1,300 See IL BA
Desmodur® IL 1351 EA TDI Isocyanurate 51 EA 8.0 525 350 See IL BA
Desmodur® IL 1451 BA TDI Isocyanurate 51 BA 7.4 565 250 Like Desmodur® IL 1351 BA but with improved compatibility
Desmodur® IL 1451 EA TDI Isocyanurate 51 EA 7.4 565 110 Like Desmodur® IL 1351 BA but with improved compatibility
Desmodur® HL BA TDI/HDI Isocyanurate 60 BA 10.5 400 2,200Very fast-drying coatings for wood, furniture, metal, plastic and paper with better elasticity than Desmodur®
IL and better lightfastness
Desmodur® HL EA TDI/HDI Isocyanurate 60 EA 10.5 400 1,100 See HL BA
EQUIVALENT WEIGHT APPROX.
for coatings and adhesives
Monomeric TDI products
TDI-based*
13
Desmodur® T65N 48 67.0 3 2 90 100/40
Desmodur® T80 48 80.5 3 2 90 100/40 Stabilizer: Irganox® 1076 FD
Desmodur® T100 48 ≥ 99.0 3 2 90 20/20 Stabilizer: Irganox® 1076 FD
EQUIVALENTWEIGHT APPROX.
PROPERTIES & APPLICATIONS
HC MAX./ACIDITY MAX. [ppm HCI]
INDUSTRIAL FLOOR WALL
Desmodur® L 75 TDI Adduct 75 EA 13.3 315 1,600
Standard crosslinker with broad range of applications, e.g. chemically resistant coatings, anti-corrosion coatings, industrial coatings, wood and furniture finishes, concrete coatings
Desmodur® L 67 MPA/X TDI Adduct 67 MPA/X 11.9 350 1,600 See L 75
Desmodur® L 67 BA TDI Adduct 67 BA 11.9 350 600 See L 75
Desmodur® IL BA TDI Isocyanurate 51 BA 8.0 525 2,000Very hard and very fast-drying coatings for wood, furniture and paper
Desmodur® IL EA TDI Isocyanurate 51 EA 8.0 525 700 See IL BA
Desmodur® IL 1351 BA TDI Isocyanurate 51 BA 8.0 525 1,300 See IL BA
Desmodur® IL 1351 EA TDI Isocyanurate 51 EA 8.0 525 350 See IL BA
Desmodur® IL 1451 BA TDI Isocyanurate 51 BA 7.4 565 250 Like Desmodur® IL 1351 BA but with improved compatibility
Desmodur® IL 1451 EA TDI Isocyanurate 51 EA 7.4 565 110 Like Desmodur® IL 1351 BA but with improved compatibility
Desmodur® HL BA TDI/HDI Isocyanurate 60 BA 10.5 400 2,200Very fast-drying coatings for wood, furniture, metal, plastic and paper with better elasticity than Desmodur®
IL and better lightfastness
Desmodur® HL EA TDI/HDI Isocyanurate 60 EA 10.5 400 1,100 See HL BA
WOOD FURNITURE
PLASTICSCORROSION PROTECTION
PROPERTIES & APPLICATIONS
* = These products repre-sent only a selection of the TDI- and MDI-based products pri-marily used in coating applications. Additional TDI- and MDI-based products can be found, for example, on the Bayer MaterialScience CAS website: www.bayercoatings.com
= especially suitable = suitable
14
Prepolymers based on TDI
Desmodur® E 15 4.4 100 — ≤ 0.5 7,000 23 n. m. LF 955Polyether-based prepolymer for flexible coatings and membranes
Desmodur® E 14 3.3 100 — ≤ 0.5 6,800 23 n. m. LF 1,270Polyether-based prepolymer for flexible coatings and membranes, flexibilization in anti-corrosion protection
Desmodur® E 1361 MPA/X 6.8 61 MPA/X ≤ 0.4 500 23 ≤ 3 SF 615Fast-drying 1K moisture-curing coatings, good resistance
Desmodur® E 1361 BA 6.8 61 BA ≤ 0.5 250 23 ≤ 3 SF 615 See E 1361 MPA/X
Desmodur® E 1160 MPA/X 5.4 60 MPA/X ≤ 0.4 550 23 ≤ 3 LF 7751K moisture-curing coatings with good resistance properties
Desmodur® E 1660 5.3 60 BA ≤ 0.5 1,600 23 n. m. LF 7901K moisture-curing coatings in combination with other Desmodur® E types: good resistance proper-ties and very fast drying
SOLVENTNCO APPROX. [WT. %]
VISCOSITYAPPROX. [mPa • s]
SOLIDS CONTENT[APPROX. %]
MONOMER CONTENT [WT. %]
Prepolymers are the reaction products of aromatic or aliphatic isocya-
nates and polyols, such as polyethers or polyesters. The wide variability
of the isocyanate content and functionality enables the viscosity of the
prepolymers and the mechanical properties of the finished products to
be precisely adjusted.
15
Desmodur® E 15 4.4 100 — ≤ 0.5 7,000 23 n. m. LF 955Polyether-based prepolymer for flexible coatings and membranes
Desmodur® E 14 3.3 100 — ≤ 0.5 6,800 23 n. m. LF 1,270Polyether-based prepolymer for flexible coatings and membranes, flexibilization in anti-corrosion protection
Desmodur® E 1361 MPA/X 6.8 61 MPA/X ≤ 0.4 500 23 ≤ 3 SF 615Fast-drying 1K moisture-curing coatings, good resistance
Desmodur® E 1361 BA 6.8 61 BA ≤ 0.5 250 23 ≤ 3 SF 615 See E 1361 MPA/X
Desmodur® E 1160 MPA/X 5.4 60 MPA/X ≤ 0.4 550 23 ≤ 3 LF 7751K moisture-curing coatings with good resistance properties
Desmodur® E 1660 5.3 60 BA ≤ 0.5 1,600 23 n. m. LF 7901K moisture-curing coatings in combination with other Desmodur® E types: good resistance proper-ties and very fast drying
COLOR INDEX[IODINE]
EQUIVALENT WEIGHT APPROX.
VISCOSITY AT TEMPERATURE [°C]
FUNCTIONALITY* PROPERTIES & APPLICATIONS
*LF = Low functionality
(2.0–2.8)SF = Standard function-
ality (2.8–3.6)HF = High functionality
(> 3.6)n. m. = not measured
16
for coatings and adhesives
Monomeric MDI products
Desmodur® 44M liquid 33.6 4.1 40 2 125 50/–Flexible packaging, hotmelts, sealants; additional supply form: fused and flakes
Desmodur® 44MC liquid 33.6 4.1 40 2 125 60/–Hotmelts, sealants, prepolymer stability (++); additional supply form: fused and flakes
Desmodur® LS2424 33.6 12 25 2 125 50/– Flexible packaging, hotmelts, approx. 55 % 2,4’-MDI/45 % 4,4’-MDI
Desmodur® 2460M 33.6 12 25 2 125 50/–Flexible packaging, hotmelts, approx. 55 % 2,4’-MDI/45 % 4,4’-MDI color stabilized
Desmodur® CD-S 29.5 35 25 2 — 50/–Hotmelts, sealants, modified monomeric MDI, liquid at room temperature, storage stable at low temperatures
NCO APPROX. [WT. %]
VISCOSITY ATTEMPERATURE [°C]
VISCOSITYAPPROX. [mPa • s]
FUNCTIONALITY*
Desmodur® VK5 32.5 22.5 25 LF 130 –/600 Prepolymers, high 2,4’-MDI content, good compatibility with polyethers
Desmodur® VK10 31.5 90 25 LF 135 –/1000One- & two-component adhesives, high 2,4’-MDI content, low PMDI content, good compatibility with polyethers
Desmodur® VK10L 31.5 90 25 LF 135 –/1000One- & two-component adhesives, high 2,4’-MDI content, low PMDI content good compatibility with polyethers, lower reactivity than Desmodur® VK 10,
Desmodur® VLR10 31.5 120 25 SF 135 –/200
Desmodur® VKS20 31.5 200 25 SF 135 –/200 Standard two-component adhesives
Desmodur® VKS20F 31.5 200 25 SF 135 –/200 Standard two-component adhesives (exact specification on request)
Desmodur® VKS20FH 31.5 200 25 SF 135 –/150 Standard two-component adhesives (exact specification on request)
Desmodur® 44V40L 31.0 300 25 SF 135 –/300 Standard two-component adhesives
Desmodur® 44V70L 31.3 680 25 SF 135 –/500 Standard two-component adhesives
Polymeric MDI products (PMDI products)**
17
Desmodur® 44M liquid 33.6 4.1 40 2 125 50/–Flexible packaging, hotmelts, sealants; additional supply form: fused and flakes
Desmodur® 44MC liquid 33.6 4.1 40 2 125 60/–Hotmelts, sealants, prepolymer stability (++); additional supply form: fused and flakes
Desmodur® LS2424 33.6 12 25 2 125 50/– Flexible packaging, hotmelts, approx. 55 % 2,4’-MDI/45 % 4,4’-MDI
Desmodur® 2460M 33.6 12 25 2 125 50/–Flexible packaging, hotmelts, approx. 55 % 2,4’-MDI/45 % 4,4’-MDI color stabilized
Desmodur® CD-S 29.5 35 25 2 — 50/–Hotmelts, sealants, modified monomeric MDI, liquid at room temperature, storage stable at low temperatures
EQUIVALENTWEIGHT APPROX.
PROPERTIES & APPLICATIONS
HC MAX./ACIDITY MAX. [ppm CI-/HCI]
Desmodur® VK5 32.5 22.5 25 LF 130 –/600 Prepolymers, high 2,4’-MDI content, good compatibility with polyethers
Desmodur® VK10 31.5 90 25 LF 135 –/1000One- & two-component adhesives, high 2,4’-MDI content, low PMDI content, good compatibility with polyethers
Desmodur® VK10L 31.5 90 25 LF 135 –/1000One- & two-component adhesives, high 2,4’-MDI content, low PMDI content good compatibility with polyethers, lower reactivity than Desmodur® VK 10,
Desmodur® VLR10 31.5 120 25 SF 135 –/200
Desmodur® VKS20 31.5 200 25 SF 135 –/200 Standard two-component adhesives
Desmodur® VKS20F 31.5 200 25 SF 135 –/200 Standard two-component adhesives (exact specification on request)
Desmodur® VKS20FH 31.5 200 25 SF 135 –/150 Standard two-component adhesives (exact specification on request)
Desmodur® 44V40L 31.0 300 25 SF 135 –/300 Standard two-component adhesives
Desmodur® 44V70L 31.3 680 25 SF 135 –/500 Standard two-component adhesives
** = These products repre-sent only a selection of the TDI- and MDI-based products pri-marily used in coating applications. Additional TDI- and MDI-based products can be found, for example, on the Bayer MaterialScience CAS website: www.bayercoatings.com
* LF = Low functionality (2.0–2.8)
SF = Standard functional-ity (2.8–3.6)
HF = High functionality (> 3.6)
18
Desmodur® VL Family Crosslinkers for solvent-free 2K polyurethane
coatings for anti-corrosion and construction applications.
Desmoseal® S Silane-terminated polyurethanes (STPs) that combine
the properties of polyurethanes with those of silicones to create a new
class of prepolymers. Primarily designed to act as binders for moisture-
curing sealants and elastic adhesives, these high molecular weight pre-
polymers consist of a polyurethane backbone and a trifunctional silane
end group.
PMDI products*
SUPPLY FORM APPROX. [%]
TYPE NCO (SUPPLY FORM) APPROX. [%]
VISC. AT 25 °C APPROX. [mPa • s]
Desmodur® VL MDI polyisocyanate Solvent-free 31.5 135 90 Crosslinker for solvent-free coatings, sealants and membranes
Desmodur® VL 50 MDI polyisocyanate Solvent-free 32.5 130 23Very low viscosity; same applications as Desmodur® VL but better compatibility with polyethers and lower reactivity; more flexible
Desmodur® VL 51 MDI polyisocyanate Solvent-free 32.5 130 21 See VL 50
Desmodur® VL R 10 MDI polyisocyanate Solvent-free 31.5 135 120Higher reactivity than Desmodur® VL; for solvent-free spray coatings and membranes
Desmodur® VL R 20 MDI polyisocyanate Solvent-free 31.5 135 200 See VL R 10
Desmodur® VKS 20 F MDI polyisocyanate Solvent-free 31.5 135 200Lower reactivity than Desmodur® VL R 20; for solvent-free coatings and membranes
Desmodur® XP 2551 MDI polyisocyanate Solvent-free 32 130 66 Crosslinker primarily for polyol emulsions
EQUIVALENT WEIGHT APPROX.
Silane-terminatedpolyurethanes
SOLIDS CONTENT [%]
PLASTICIZER
Desmoseal® S XP 2636 100 — 40,000 HighSealants & adhesives, prepolymer for soft formulations with low modulus and and high elon-gation at break, with good elastic recovery
Desmoseal® S XP 2458 90 Mesamoll 35,000 Medium Sealants & adhesives, prepolymer for hard formulations with high modulus and medium elongation at break, with high cohesive strength
Desmoseal® S XP 2749 100 — 4,500 LowAdhesives & coatings, medium to high modulus, prepolymer for adhesives, primers, water-proofing membranes, good elastic properties, low elongation at break
Desmoseal® S XP 2774 100 — 50,000 HighSealants & adhesives, prepolymer for very soft formulations with low modulus and high elongation at break, with good elastic recovery
Desmoseal® S XP 2821 100 — 20,000 Low Adhesives, prepolymer for very hard formulations with high tensile and lab shear strength
VISCOSITY AT 23 °CAPPROX. [mPa • s]
19
VISC. AT 25 °C APPROX. [mPa • s]
FLOOR WALL
Desmodur® VL MDI polyisocyanate Solvent-free 31.5 135 90 Crosslinker for solvent-free coatings, sealants and membranes
Desmodur® VL 50 MDI polyisocyanate Solvent-free 32.5 130 23Very low viscosity; same applications as Desmodur® VL but better compatibility with polyethers and lower reactivity; more flexible
Desmodur® VL 51 MDI polyisocyanate Solvent-free 32.5 130 21 See VL 50
Desmodur® VL R 10 MDI polyisocyanate Solvent-free 31.5 135 120Higher reactivity than Desmodur® VL; for solvent-free spray coatings and membranes
Desmodur® VL R 20 MDI polyisocyanate Solvent-free 31.5 135 200 See VL R 10
Desmodur® VKS 20 F MDI polyisocyanate Solvent-free 31.5 135 200Lower reactivity than Desmodur® VL R 20; for solvent-free coatings and membranes
Desmodur® XP 2551 MDI polyisocyanate Solvent-free 32 130 66 Crosslinker primarily for polyol emulsions
CORROSION PROTECTION
AUTO OEM
PROPERTIES & APPLICATIONS
MOLECULAR WEIGHT
Desmoseal® S XP 2636 100 — 40,000 HighSealants & adhesives, prepolymer for soft formulations with low modulus and and high elon-gation at break, with good elastic recovery
Desmoseal® S XP 2458 90 Mesamoll 35,000 Medium Sealants & adhesives, prepolymer for hard formulations with high modulus and medium elongation at break, with high cohesive strength
Desmoseal® S XP 2749 100 — 4,500 LowAdhesives & coatings, medium to high modulus, prepolymer for adhesives, primers, water-proofing membranes, good elastic properties, low elongation at break
Desmoseal® S XP 2774 100 — 50,000 HighSealants & adhesives, prepolymer for very soft formulations with low modulus and high elongation at break, with good elastic recovery
Desmoseal® S XP 2821 100 — 20,000 Low Adhesives, prepolymer for very hard formulations with high tensile and lab shear strength
VISCOSITY AT 23 °CAPPROX. [mPa • s]
PROPERTIES & APPLICATIONS
* = These products repre-sent only a selection of the TDI- and MDI-based products pri-marily used in coating applications. Additional TDI- and MDI-based products can be found, for example, on the Bayer MaterialScience CAS website: www.bayercoatings.com
= especially suitable = suitable
20
Desmodur® and Desmoseal® M prepolymers are the reaction pro-
ducts of aromatic or aliphatic isocyanates and polyols, such as
polyethers or polyesters. The wide variability of the building blocks,
isocyanate content and functionality enables the viscosity of the pre-
polymers and the mechanical properties of the finished products to
be precisely adjusted.
Prepolymers based on MDI
Desmodur® VH 20 N 24.5 280 25 LF 170 Gymnasium floors, storage stable at low temperatures
Desmodur® E 29 24.0 220 25 LF 175 Primer for flooring applications, binder for corrosion protection
Desmodur® PF 23.0 600 25 LF 180Hot melts, modified monomeric MDI, liquid at room temperature, storage stable at low temperatures
Desmodur® E XP 2753 21.5 400 23 LF 195 Corrosion protection e.g. pipe coatings
Desmodur® E 21 16 5,400 25 SF 260 Wood bonding, binder for corrosion protection
Desmodur® E 20100 15.7 1,100 23 LF 265 Injection resin for sealing water-conveying cracks in structures above and below ground
Desmodur® E XP 2723 15.4 1,500 25 LF 270 1K and 2K adhesives
Desmodur® E 23 15.4 1,800 23 LF 270 Wood bonding, flexible packaging, binder for corrosion protection
Desmodur® E XP 2762 15.9 2,800 23 SF 265 Wood bonding, higher reacitivity compared to E 23
Desmodur® E XP 2727 15.3 800 23 LF 275 1K and 2K binder for corrosion protection and adhesives
Desmodur® E 2200/76 9.9 2,750 25 LF 425 Flexible packaging
Desmodur® E 22 8.6 2,800 23 LF 490 Bonding of granulated rubber
Desmodur® E XP 2726 6.0 4,500 23 LF 700 Low monomer 1K PUR hotmelts
Desmoseal® M 280 2.1 33,000 23 LF 2,000 Sealants, elastic adhesives
NCO APPROX. [WT. %]
VISCOSITY ATTEMPERATURE [°C]
VISCOSITYAPPROX. [mPa • s]
FUNCTIONALITY*
21
Desmodur® VH 20 N 24.5 280 25 LF 170 Gymnasium floors, storage stable at low temperatures
Desmodur® E 29 24.0 220 25 LF 175 Primer for flooring applications, binder for corrosion protection
Desmodur® PF 23.0 600 25 LF 180Hot melts, modified monomeric MDI, liquid at room temperature, storage stable at low temperatures
Desmodur® E XP 2753 21.5 400 23 LF 195 Corrosion protection e.g. pipe coatings
Desmodur® E 21 16 5,400 25 SF 260 Wood bonding, binder for corrosion protection
Desmodur® E 20100 15.7 1,100 23 LF 265 Injection resin for sealing water-conveying cracks in structures above and below ground
Desmodur® E XP 2723 15.4 1,500 25 LF 270 1K and 2K adhesives
Desmodur® E 23 15.4 1,800 23 LF 270 Wood bonding, flexible packaging, binder for corrosion protection
Desmodur® E XP 2762 15.9 2,800 23 SF 265 Wood bonding, higher reacitivity compared to E 23
Desmodur® E XP 2727 15.3 800 23 LF 275 1K and 2K binder for corrosion protection and adhesives
Desmodur® E 2200/76 9.9 2,750 25 LF 425 Flexible packaging
Desmodur® E 22 8.6 2,800 23 LF 490 Bonding of granulated rubber
Desmodur® E XP 2726 6.0 4,500 23 LF 700 Low monomer 1K PUR hotmelts
Desmoseal® M 280 2.1 33,000 23 LF 2,000 Sealants, elastic adhesives
EQUIVALENTWEIGHT APPROX.
PROPERTIES & APPLICATIONS
*
LF = Low functionality (2.0–2.8)
SF = Standard functionality (2.8–3.6)
HF = High functionality (> 3.6)
22
Desmodur® N Family: Hardeners for high-performance two-compo-
nent polyurethane coatings with excellent weatherability and resistance
properties.
Aliphatic isocyanates – monomers
Desmodur® H ≥ 49.7 — 3 25 ≤30 2.0 85 HDI
Desmodur® I ≥ 37.5 — 10 25 ≤30 2.0 110 IPDI
Desmodur® W ≥ 31.8 — 30 25 ≤30 2.0 130 H12MDI
NCO APPROX. [WT. %]
VISCOSITY APPROX. [mPa • s]
FREE MONOMER CONTENT [WT. %]
VISCOSITY AT TEMPERATURE [°C]
HDI-based and biuret
SUPPLY FORM APPROX. [%]
TYPE NCO CONTENT ON SUPPLY FORM APPROX. [%]
VISC. AT 23 °C APPROX. [mPa • s]
AUTO-REFINISHLARGE VEHICLES
Desmodur® N 100 HDI biuret Solvent-free 22.0 190 10,000 Weather-stable and non-yellowing topcoats
Desmodur® N 75 MPA/X HDI biuret 75 MPA/X 16.5 255 250
Outstanding weather stability and gloss retention, no yellowing; for air and force-drying automotive, wood, furniture, industrial and plastics coatings, anti-corrosion coatings and chemically resistant coatings
Desmodur® N 75 MPA HDI biuret 75 MPA 16.5 255 250 See N 75 MPA/X
Desmodur® N 75 BA HDI biuret 75 BA 16.5 255 160 See N 75 MPA/X
Desmodur® N 3200 HDI biuret Solvent-free 23.0 185 2,500Lower viscosity than Desmodur® N 100; especially for weather-stable and non-yellowing high-solids coatings, structural coatings and topcoats
EQUIVALENT WEIGHT APPROX.
AUTO OEM
HDI-based – Trimer
Desmodur® N 3300 HDI isocyanurate Solvent-free 21.8 195 3,000
Outstanding weather stability and gloss retention, non-yellowing; for automotive OEM, automotive refinish, plastics and industrial coatings, structural coatings and topcoats
Desmodur® N 3390 BA/SN HDI isocyanurate 90 BA/SN 19.6 215 550 See N 3300
Desmodur® N 3390 BA HDI isocyanurate 90 BA 19.6 215 500 See N 3300
23
Desmodur® H ≥ 49.7 — 3 25 ≤30 2.0 85 HDI
Desmodur® I ≥ 37.5 — 10 25 ≤30 2.0 110 IPDI
Desmodur® W ≥ 31.8 — 30 25 ≤30 2.0 130 H12MDI
COLOR INDEX [HAZEN]
EQUIVALENT WEIGHT APPROX.
FUNCTIONALITY PROPERTIES & APPLICATIONS
WOODFURNITURE
PARQUETTRADE
CORROSIONPROTECTION
Desmodur® N 100 HDI biuret Solvent-free 22.0 190 10,000 Weather-stable and non-yellowing topcoats
Desmodur® N 75 MPA/X HDI biuret 75 MPA/X 16.5 255 250
Outstanding weather stability and gloss retention, no yellowing; for air and force-drying automotive, wood, furniture, industrial and plastics coatings, anti-corrosion coatings and chemically resistant coatings
Desmodur® N 75 MPA HDI biuret 75 MPA 16.5 255 250 See N 75 MPA/X
Desmodur® N 75 BA HDI biuret 75 BA 16.5 255 160 See N 75 MPA/X
Desmodur® N 3200 HDI biuret Solvent-free 23.0 185 2,500Lower viscosity than Desmodur® N 100; especially for weather-stable and non-yellowing high-solids coatings, structural coatings and topcoats
INDUSTRIAL COATINGS
PLASTIC COATINGS
FLOOR WALL
PROPERTIES & APPLICATIONS
Desmodur® N 3300 HDI isocyanurate Solvent-free 21.8 195 3,000
Outstanding weather stability and gloss retention, non-yellowing; for automotive OEM, automotive refinish, plastics and industrial coatings, structural coatings and topcoats
Desmodur® N 3390 BA/SN HDI isocyanurate 90 BA/SN 19.6 215 550 See N 3300
Desmodur® N 3390 BA HDI isocyanurate 90 BA 19.6 215 500 See N 3300
= especially suitable = suitable
(CH2)6 NNHO
ONH
(CH2)6
(CH2)6
OCNNCO
NCO
24
Desmodur® N FAMILY: Hardeners for high-grade two-component
polyurethane coatings with excellent weatherability and resistance
properties.
HDI-based and trimer
SUPPLY FORM APPROX. [%]
TYPE VISC. AT 23 °C APPROX. [mPa • s]
AUTO-REFINISHLARGE VEHICLES
NCO CONTENT ON SUPPLY FORM APPROX. [%]
Desmodur® N 3600 HDI isocyanurate Solvent-free 23.0 185 1,200
Low-viscosity crosslinker for weather-stable and non-yellowing high-solids and waterborne coatings for auto-motive refinishing, automotive OEM and industrial appli-cations; also for structural coatings and topcoats
Desmodur® N 3790 BA HDI isocyanurate 90 BA 17.8 235 1,800Highly functional crosslinker for fast-drying, weather- stable and non-yellowing 2K-PUR coatings for automotive refinishing, automotive OEM and industrial applications
Desmodur® N 3800 HDI isocyanurate Solvent-free 11.0 380 6,000
For highly elastic coatings with resistance to accelerated and outdoor weathering; combination with suitable poly-isocyanates allows variation of the elasticity using the same polyol mill base
Desmodur® N 3900 HDI iminooxadia-zine dione Solvent-free 23.5 180 730
Low-viscosity crosslinker for lightfast 2K-PUR coat-ings (high-solids/waterborne e.g. in combination with Bayhydur® types) for automotive refinishing, automotive OEM, transportation and plastics finishing applications
Desmodur® XP 2675 HDI isocyanurate Solvent-free 20.0 210 15,000Solvent-free, highly functional crosslinker for solvent-free 2K applications, outstanding weather-stability and gloss retention, non-yellowing
Desmodur® blulogiq 3190 HDI isocyanurate 90 BA 19.1 214 650
Thermolatent crosslinker that has standard reactivity at ambient conditions but acts as a highly catalyzed crosslinker at elevated temperatures. Baking tempera-ture of 75 °C or higher recommended. Especially for high gloss spray coatings.
EQUIVALENT WEIGHT APPROX.
AUTO OEM
HDI-based and specialties
Desmodur® XP 2860 HDI allophanate Solvent-free 20.0 215 500
Flexible, low-viscosity crosslinker for weatherstable high-solids and waterborne 2K-PUR coatings e.g. in combi-nation with Bayhydur® or Desmudur® types, especially for industrial, automotive refinishing, transportation and plastic coatings
Desmodur® N 3400 HDI uretdione Solvent-free 21.8 195 150Low-viscosity crosslinker for waterborne and solvent-borne 2K-PUR coatings; also for moisture-curing 1K-PUR systems, for structural coatings and topcoats
Desmodur® XP 2840 HDI uretdione Solvent-free 23.0 185 500Low-viscosity crosslinker for waterborne and solvent-borne 2K-PUR coatings; also for moisture-curing 1K-PUR systems, for structural coatings and topcoats
Desmodur® N 3580 BA HDI allophanate/Trimer 80 BA 15.4 273 500
Highly functional crosslinker; outstanding weather stable gloss; improved chemical and scratch resistance for automotive OEMs and plastics
Desmodur® N 3500 HDI allophanate/Trimer Solvent-free 19.5 215 35,000
Highly functional crosslinker; outstanding weather stable gloss; improved chemical and scratch resistance for direct coating (RIM)
25
WOODFURNITURE
PARQUETTRADE
CORROSIONPROTECTION
Desmodur® N 3600 HDI isocyanurate Solvent-free 23.0 185 1,200
Low-viscosity crosslinker for weather-stable and non-yellowing high-solids and waterborne coatings for auto-motive refinishing, automotive OEM and industrial appli-cations; also for structural coatings and topcoats
Desmodur® N 3790 BA HDI isocyanurate 90 BA 17.8 235 1,800Highly functional crosslinker for fast-drying, weather- stable and non-yellowing 2K-PUR coatings for automotive refinishing, automotive OEM and industrial applications
Desmodur® N 3800 HDI isocyanurate Solvent-free 11.0 380 6,000
For highly elastic coatings with resistance to accelerated and outdoor weathering; combination with suitable poly-isocyanates allows variation of the elasticity using the same polyol mill base
Desmodur® N 3900 HDI iminooxadia-zine dione Solvent-free 23.5 180 730
Low-viscosity crosslinker for lightfast 2K-PUR coat-ings (high-solids/waterborne e.g. in combination with Bayhydur® types) for automotive refinishing, automotive OEM, transportation and plastics finishing applications
Desmodur® XP 2675 HDI isocyanurate Solvent-free 20.0 210 15,000Solvent-free, highly functional crosslinker for solvent-free 2K applications, outstanding weather-stability and gloss retention, non-yellowing
Desmodur® blulogiq 3190 HDI isocyanurate 90 BA 19.1 214 650
Thermolatent crosslinker that has standard reactivity at ambient conditions but acts as a highly catalyzed crosslinker at elevated temperatures. Baking tempera-ture of 75 °C or higher recommended. Especially for high gloss spray coatings.
INDUSTRIAL COATINGS
PLASTIC COATINGS
FLOOR WALL
PROPERTIES & APPLICATIONS
Desmodur® XP 2860 HDI allophanate Solvent-free 20.0 215 500
Flexible, low-viscosity crosslinker for weatherstable high-solids and waterborne 2K-PUR coatings e.g. in combi-nation with Bayhydur® or Desmudur® types, especially for industrial, automotive refinishing, transportation and plastic coatings
Desmodur® N 3400 HDI uretdione Solvent-free 21.8 195 150Low-viscosity crosslinker for waterborne and solvent-borne 2K-PUR coatings; also for moisture-curing 1K-PUR systems, for structural coatings and topcoats
Desmodur® XP 2840 HDI uretdione Solvent-free 23.0 185 500Low-viscosity crosslinker for waterborne and solvent-borne 2K-PUR coatings; also for moisture-curing 1K-PUR systems, for structural coatings and topcoats
Desmodur® N 3580 BA HDI allophanate/Trimer 80 BA 15.4 273 500
Highly functional crosslinker; outstanding weather stable gloss; improved chemical and scratch resistance for automotive OEMs and plastics
Desmodur® N 3500 HDI allophanate/Trimer Solvent-free 19.5 215 35,000
Highly functional crosslinker; outstanding weather stable gloss; improved chemical and scratch resistance for direct coating (RIM)
= especially suitable = suitable
26
Desmodur® Z Family: Fast-drying two-component polyurethane
coatings with high chemical resistance.
SUPPLY FORM APPROX. [%]
TYPE NCO CONTENT ON SUPPLY FORM APPROX. [%]
VISC. AT 23 °C APPROX. [mPa • s]
AUTO-REFINISH
LARGE VEHICLES
EQUIVALENT WEIGHT APPROX.
AUTO OEM
IPDI-based
Desmodur® Z 4470 SN IPDI isocyanurate 70 SN 11.9 360 2,000
Fast-drying hardener for lightfast 2K-PUR coatings with high resistance to chemicals and weathering. For automotive OEM, refinishing and industrial applications. On account of its high hardness, Desmodur® Z is normally mixed with Desmodur® N products
Desmodur® Z 4470 MPA/X IPDI isocyanurate 70 MPA/X 11.9 360 1,500 See Z 4470 SN
Desmodur® Z 4470 BA IPDI isocyanurate 70 BA 11.9 360 600 See Z 4470 SN
Desmodur® XP 2565 IPDI allophanate 80 BA 12.0 350 2,800
Crosslinker for weatherstable, fast-drying high-solids and waterborne 2K-PUR coatings e.g. in combination with Bayhydur® types, for automotive refinishing and transpor-tation applications
Desmodur® XP 2489 HDI/IPDI polyisocyanate Solvent-free 21.0 200 22,500
Outstanding weatherability, gloss and improved resistance for automotive OEM and plastics; especially for ultra high solid and solvent-free applications, e.g. in-mould coating
Desmodur® XP 2838 HDI/IPDI polyisocyanate Solvent-free 21.0 200 3,000
Solvent-free crosslinker for lightfast 2K-PUR systems; as a binder for solvent-free decorative floor coatings
Desmodur® XP 2763 HDI/IPDI polyisocyanate 86 BA 10.2 412 2,100
Crosslinker for weather-stable 2K PU and polyaspartic coatings; longer pot life and extended recoating window with polyaspartic coatings
27
AUTO-REFINISH
LARGE VEHICLES
WOODFURNITURE
PARQUETTRADE
CORROSIONPROTECTION
INDUSTRIAL COATINGS
PLASTIC COATINGS
FLOOR WALL
PROPERTIES & APPLICATIONS
Desmodur® Z 4470 SN IPDI isocyanurate 70 SN 11.9 360 2,000
Fast-drying hardener for lightfast 2K-PUR coatings with high resistance to chemicals and weathering. For automotive OEM, refinishing and industrial applications. On account of its high hardness, Desmodur® Z is normally mixed with Desmodur® N products
Desmodur® Z 4470 MPA/X IPDI isocyanurate 70 MPA/X 11.9 360 1,500 See Z 4470 SN
Desmodur® Z 4470 BA IPDI isocyanurate 70 BA 11.9 360 600 See Z 4470 SN
Desmodur® XP 2565 IPDI allophanate 80 BA 12.0 350 2,800
Crosslinker for weatherstable, fast-drying high-solids and waterborne 2K-PUR coatings e.g. in combination with Bayhydur® types, for automotive refinishing and transpor-tation applications
Desmodur® XP 2489 HDI/IPDI polyisocyanate Solvent-free 21.0 200 22,500
Outstanding weatherability, gloss and improved resistance for automotive OEM and plastics; especially for ultra high solid and solvent-free applications, e.g. in-mould coating
Desmodur® XP 2838 HDI/IPDI polyisocyanate Solvent-free 21.0 200 3,000
Solvent-free crosslinker for lightfast 2K-PUR systems; as a binder for solvent-free decorative floor coatings
Desmodur® XP 2763 HDI/IPDI polyisocyanate 86 BA 10.2 412 2,100
Crosslinker for weather-stable 2K PU and polyaspartic coatings; longer pot life and extended recoating window with polyaspartic coatings
= especially suitable = suitable
28
Desmodur® prepolymers based on aliphatic isocyanates like HDI or
IPDI display good weather stability and are color-stable. These unique
properties are important for applications such as corrosion protection
or non-yellowing coatings and adhesives.
Prepolymers based on aliphaticisocyanates
HDI PREPOLYMERS
Desmodur® E XP 2747 16.9 100 — < 0.5 2,600 23 n. m. HF 250 1K and 2K adhesives
Desmodur® XP 2617 12.5 100 — < 0.5 4,250 23 n. m. LF 3351K and 2K adhesives, bonding of granulated rubber
Desmodur® XP 2599 6.0 100 — ≤ 0.3 2,500 23 n. m. HF 700 1K and 2K adhesives
Desmodur® E 3265 MPA/SN 10.4 65 MPA/SN100 ≤ 0.26 1,200 23 ≤ 4 HF 1,700Anti-corrosion coatings, good weather stability, non-yellowing, 1K application
Desmodur® E 3370 10.0 70 MPA/SN100 ≤ 0.1 1,400 23 ≤ 80 [Hazen] HF 420Anti-corrosion coatings, good weather stability, non-yellowing, 1K application
IPDI PREPOLYMERS
Desmodur® VPLS 2371 3.7 100 — < 2.0 9,800 50 n. m. LF 1,135 1K sealants
Desmodur® XP 2406 2.8 80 MPA < 0.5 7,000 23 ≤ 200 [Hazen] LF 1,500Elastic coatings and sealants with very good weather stability
Desmodur® E 2863 XP 11.0 100 — < 0.3 1,350 23 n. m. LF 380 Waterproofing membranes, floor coatings
NCO APPROX. [WT. %]
SOLVENT VISCOSITY APPROX. [mPa • s]
SOLIDS CONTENTAPPROX. [WT. %]
MONOMER CONTENT [WT. %]
29
HDI PREPOLYMERS
Desmodur® E XP 2747 16.9 100 — < 0.5 2,600 23 n. m. HF 250 1K and 2K adhesives
Desmodur® XP 2617 12.5 100 — < 0.5 4,250 23 n. m. LF 3351K and 2K adhesives, bonding of granulated rubber
Desmodur® XP 2599 6.0 100 — ≤ 0.3 2,500 23 n. m. HF 700 1K and 2K adhesives
Desmodur® E 3265 MPA/SN 10.4 65 MPA/SN100 ≤ 0.26 1,200 23 ≤ 4 HF 1,700Anti-corrosion coatings, good weather stability, non-yellowing, 1K application
Desmodur® E 3370 10.0 70 MPA/SN100 ≤ 0.1 1,400 23 ≤ 80 [Hazen] HF 420Anti-corrosion coatings, good weather stability, non-yellowing, 1K application
IPDI PREPOLYMERS
Desmodur® VPLS 2371 3.7 100 — < 2.0 9,800 50 n. m. LF 1,135 1K sealants
Desmodur® XP 2406 2.8 80 MPA < 0.5 7,000 23 ≤ 200 [Hazen] LF 1,500Elastic coatings and sealants with very good weather stability
Desmodur® E 2863 XP 11.0 100 — < 0.3 1,350 23 n. m. LF 380 Waterproofing membranes, floor coatings
COLOR INDEX [IODINE]
EQUIVALENT WEIGHT APPROX.
VISCOSITY AT TEMPERATURE [°C]
FUNCTIONALITY* PROPERTIES & APPLICATIONS
*HF = High functionality
(> 3.6)LF = Low functionality
(2.0 – 2.8)n. m. = not measured
30
The key to easy and reliable application of waterborne 2K PU systems.
Hydrophilic modifiedpolyisocyanates
SUPPLY FORM APPROX. [%]
TYPE NCO CONTENT ON SUPPLY FORM APPROX. [%]
VISC. AT 23 °C APPROX. [mPa • s]
Bayhydur® 3100 Hydrophilic polyisocyanate (HDI) 100 17.4 240 2,800 Versatile and economical
Bayhydur® 304 Hydrophilic polyisocyanate (HDI) 100 18.2 230 4,000 Versatile use, improved mixing
Bayhydur® 305 Hydrophilic polyisocyanate (HDI) 100 16.2 260 6,500 Easy mixing, high gloss
Bayhydur® 401-70 IPDI type hydrophilic modified 70 MPA/X 9.4 440 600 Fast-drying, chemical resistant
Bayhydur® XP 2451/1 Hydrophilic polyisocyanate (HDI) 100 20.3 207 800Low viscosity, suited for solvent-free formulations
Bayhydur® XP 2487/1 Hydrophilic polyisocyanate (HDI) 100 20.6 205 5,400 Highest chemical resistance
Bayhydur® XP 2547 Hydrophilic polyisocyanate (HDI) 100 22.5 185 650Highest chemical resistance, low viscosity, suited for solvent-free formulations
Bayhydur® XP 2655 Hydrophilic polyisocyanate (HDI) 100 20.8 205 3,500Highest chemical resistance, easy mixing
Bayhydur® XP 2700 Hydrophilic polyisocyanate (HDI) 65 PGDME 10.6 400 77 Easy mixing, high gloss
Bayhydur® XP 2759 IPDI type hydrophilic modified 70 MPA 11 380 6,500Fast-drying, easy mixing, high chemical resistance
Bayhydur® 2858 XP Hydrophilic polyisocyanate (HDI/PDI) 70 PGDA 13.3 316 500
Fast-drying, easy mixing, high chemical resistance
EQUIVALENT WEIGHT APPROX.
31
VISC. AT 23 °C APPROX. [mPa • s]
AUTO-REFINISHLARGE VEHICLES
GLASS COATINGS
PLASTIC COATINGS
FLOOR WALL
Bayhydur® 3100 Hydrophilic polyisocyanate (HDI) 100 17.4 240 2,800 Versatile and economical
Bayhydur® 304 Hydrophilic polyisocyanate (HDI) 100 18.2 230 4,000 Versatile use, improved mixing
Bayhydur® 305 Hydrophilic polyisocyanate (HDI) 100 16.2 260 6,500 Easy mixing, high gloss
Bayhydur® 401-70 IPDI type hydrophilic modified 70 MPA/X 9.4 440 600 Fast-drying, chemical resistant
Bayhydur® XP 2451/1 Hydrophilic polyisocyanate (HDI) 100 20.3 207 800Low viscosity, suited for solvent-free formulations
Bayhydur® XP 2487/1 Hydrophilic polyisocyanate (HDI) 100 20.6 205 5,400 Highest chemical resistance
Bayhydur® XP 2547 Hydrophilic polyisocyanate (HDI) 100 22.5 185 650Highest chemical resistance, low viscosity, suited for solvent-free formulations
Bayhydur® XP 2655 Hydrophilic polyisocyanate (HDI) 100 20.8 205 3,500Highest chemical resistance, easy mixing
Bayhydur® XP 2700 Hydrophilic polyisocyanate (HDI) 65 PGDME 10.6 400 77 Easy mixing, high gloss
Bayhydur® XP 2759 IPDI type hydrophilic modified 70 MPA 11 380 6,500Fast-drying, easy mixing, high chemical resistance
Bayhydur® 2858 XP Hydrophilic polyisocyanate (HDI/PDI) 70 PGDA 13.3 316 500
Fast-drying, easy mixing, high chemical resistance
INDUSTRIAL COATINGS
WOOD FURNITURE
PARQUETTRADE
CORROSIONPROTECTION
AUTO OEM
PROPERTIES & APPLICATIONS
= especially suitable = suitable
32
Desmodur® D and R: Hardeners for reactive, high-performance
adhesives.
Hydrophilicmodifiedpolyisocyanates
EQUIVALENT WEIGHT APPROX.
SUPPLY FORM APPROX. [%]
Desmodur® DA-L Hydrophilic polyisocyanate (HDI) 100 20.0 210 3,000Crosslinking agent for OH-functional polymer dispersions including polyu-rethane, polyvinyl acetate, polyacrylate and synthetic rubber dispersions. Improves resistance to heat, water, plasticizers and many solvents
Desmodur® DN Hydrophilic polyisocyanate (HDI) 100 21.8 195 1,250 See DA-L
NCO CONTENT ON SUPPLY FORM
APPROX. [%]TYPE
Special waterborne grades
Desmodur® XP 2802 Carbodiimide 40 Water approx. 1 mmol – N = C = N-/g 210 30
Crosslinking agent for aequous dispersion polymers containing carboxyl groups. The product is characterized by its long pot life
Special grades
Desmodur® RC TDI isocyanurate 35 EA 7.0 600 3Hardener for 2K-PUR systems, especially for industrial adhesives applica-tions. Especially pale-coloured adhesives used to bond rubber materials
Desmodur® RN TDI/HDI isocyanurate 40 EA 7.2 585 11Hardener for 2K-PUR systems especially for industrial adhesives applica-tions. For the use in adhesives to achieve significantly reduced discoloration on exposure to light
Desmodur® RE Triphenylmethan-4,4’,4”-triisocyanat 27 EA 9.3 450 3Hardener for 2K-PUR systems especially for industrial adhesives applica-tions. Highly effective crosslinker for adhesives based on Desmocoll®, natu-ral or synthetic rubber, with special adhesion on rubber materials
Desmodur® RFE Tris (p-isocyanatophenyl) thiophosphat 27 EA 7.2 583 3
Hardener for 2K-PUR systems especially for industrial adhesives applica-tions. A crosslinker with very universal suitability for adhesives based on Desmocoll®, natural or synthetic rubber, with special adhesion on rubber materials
Desmodur® quix 175 Araliphatic polyisocyanate based on xylene diisocyanate 75 EA 11.2 375 800
Highly reactive crosslinker with aliphatic NCO groups. For the use in adhe-sive for flexible packaging
33
ADHESIVES
Desmodur® DA-L Hydrophilic polyisocyanate (HDI) 100 20.0 210 3,000Crosslinking agent for OH-functional polymer dispersions including polyu-rethane, polyvinyl acetate, polyacrylate and synthetic rubber dispersions. Improves resistance to heat, water, plasticizers and many solvents
Desmodur® DN Hydrophilic polyisocyanate (HDI) 100 21.8 195 1,250 See DA-L
PROPERTIES & APPLICATIONS
VISCOSITY AT 23 °C APPROX. [mPa • s]
Desmodur® XP 2802 Carbodiimide 40 Water approx. 1 mmol – N = C = N-/g 210 30
Crosslinking agent for aequous dispersion polymers containing carboxyl groups. The product is characterized by its long pot life
Desmodur® RC TDI isocyanurate 35 EA 7.0 600 3Hardener for 2K-PUR systems, especially for industrial adhesives applica-tions. Especially pale-coloured adhesives used to bond rubber materials
Desmodur® RN TDI/HDI isocyanurate 40 EA 7.2 585 11Hardener for 2K-PUR systems especially for industrial adhesives applica-tions. For the use in adhesives to achieve significantly reduced discoloration on exposure to light
Desmodur® RE Triphenylmethan-4,4’,4”-triisocyanat 27 EA 9.3 450 3Hardener for 2K-PUR systems especially for industrial adhesives applica-tions. Highly effective crosslinker for adhesives based on Desmocoll®, natu-ral or synthetic rubber, with special adhesion on rubber materials
Desmodur® RFE Tris (p-isocyanatophenyl) thiophosphat 27 EA 7.2 583 3
Hardener for 2K-PUR systems especially for industrial adhesives applica-tions. A crosslinker with very universal suitability for adhesives based on Desmocoll®, natural or synthetic rubber, with special adhesion on rubber materials
Desmodur® quix 175 Araliphatic polyisocyanate based on xylene diisocyanate 75 EA 11.2 375 800
Highly reactive crosslinker with aliphatic NCO groups. For the use in adhe-sive for flexible packaging
= especially suitable = suitable
34
Desmodur® BL Family: Grades for 1K PU stoving systems with high-
grade polyurethane properties when combined with Desmophen®. The
aliphatic grades are light-stable and weather-resistant.
Aromatic blockedpolyisocyanates
SUPPLY FORM APPROX. [%]
TYPE BLOCKED NCO CONTENT ON SUPPLY FORM APPROX. [%]
VISC. AT 23 °C APPROX. [mPa • s]
Desmodur® BL 1100/1 TDI polyisocyanate 100 3.0 1,400 43,000In combination with cycloaliphatic diamines for 1K stoving primers with high film thickness and good stone-chip resistance
Desmodur® BL 1265/1 MPA/X TDI polyisocyanate 65 MPA/X 4.8 875 20,000 For primers
EQUIVALENT WEIGHT APPROX.
Aliphatic blocked polyisocyanates
Desmodur® BL 3175 SN HDI polyisocyanate 75 SN 11.1 380 3,300 Standard product
Desmodur® BL 4265 SN IPDI polyisocyanate 65 SN 8.1 520 11,000 Standard product
Desmodur® BL 5375 H12 MDI polyisocyanate 75 MPA/SN 8.9 470 4,000 High flexibility
Desmodur® BL 3575/1 MPA/SN HDI polyisocyanate 75 SN/MPA 10.5 400 3,600 Lower thermal yellowing and lowest color value
Desmodur® PL 350 MPA/SN HDI polyisocyanate 75 SN/MPA 10.5 400 4,300 Lower thermal yellowing
Desmodur® PL 340 BA/SN IPDI polyisocyanate 60 SN/BA 7.3 575 600 Lower thermal yellowing
Desmodur® BL 3370 MPA HDI polyisocyanate 70 MPA 8.9 470 3,800 High reactive
Desmodur® BL 3475 BA/SN HD/IPDI polyisocyanate 75 BA/SN 8.2 510 1,000 High reactive
Desmodur® BL 3272 MPA HDI polyisocyanate 72 MPA 10.2 410 2,700 Very high film thickness
Desmodur® BL 2078/2 IPDI polyisocyanate 60 SN 7.0 600 1,750Worldwide first and only polyurethane crosslinker with FDA-Food Contact Notification, which may be used in combination with FDA conform polyol, very high film thickness
35
INDUSTRIAL COATINGS
CAN COATINGS
Desmodur® BL 1100/1 TDI polyisocyanate 100 3.0 1,400 43,000In combination with cycloaliphatic diamines for 1K stoving primers with high film thickness and good stone-chip resistance
Desmodur® BL 1265/1 MPA/X TDI polyisocyanate 65 MPA/X 4.8 875 20,000 For primers
COILCOATINGS
GLASS COATINGS
AUTO OEM
PROPERTIES & APPLICATIONS
Desmodur® BL 3175 SN HDI polyisocyanate 75 SN 11.1 380 3,300 Standard product
Desmodur® BL 4265 SN IPDI polyisocyanate 65 SN 8.1 520 11,000 Standard product
Desmodur® BL 5375 H12 MDI polyisocyanate 75 MPA/SN 8.9 470 4,000 High flexibility
Desmodur® BL 3575/1 MPA/SN HDI polyisocyanate 75 SN/MPA 10.5 400 3,600 Lower thermal yellowing and lowest color value
Desmodur® PL 350 MPA/SN HDI polyisocyanate 75 SN/MPA 10.5 400 4,300 Lower thermal yellowing
Desmodur® PL 340 BA/SN IPDI polyisocyanate 60 SN/BA 7.3 575 600 Lower thermal yellowing
Desmodur® BL 3370 MPA HDI polyisocyanate 70 MPA 8.9 470 3,800 High reactive
Desmodur® BL 3475 BA/SN HD/IPDI polyisocyanate 75 BA/SN 8.2 510 1,000 High reactive
Desmodur® BL 3272 MPA HDI polyisocyanate 72 MPA 10.2 410 2,700 Very high film thickness
Desmodur® BL 2078/2 IPDI polyisocyanate 60 SN 7.0 600 1,750Worldwide first and only polyurethane crosslinker with FDA-Food Contact Notification, which may be used in combination with FDA conform polyol, very high film thickness
= especially suitable = suitable
36
Specialty polyurethanes
SUPPLY FORM APPROX. [%]
TYPE VISC. AT 23 °C APPROX. [mPa • s]
BLOCKED NCO CONTENT ON SUPPLY
FORM APPROX. [%]
Self-crosslinking baking urethane resins
Desmotherm® 2170 MDI self-crosslinking baking urethane resin 70 BA/SN/IB 2,000 For 1K-PUR baking coatings (primers and primer-surfacers)
37
EQUIVALENTWEIGHT APPROX.
FLOOR WALL
BLOCKED NCO CONTENT ON SUPPLY
FORM APPROX. [%]AUTO OEM
CORROSION PROTECTION
PROPERTIES & APPLICATIONS
Desmotherm® 2170 MDI self-crosslinking baking urethane resin 70 BA/SN/IB 2,000 For 1K-PUR baking coatings (primers and primer-surfacers)
= especially suitable = suitable
38
TYPE
SUPPLY FORM APPROX. [%]
NEUTRAL AGENT
Bayhydur® BL 5335 Blocked, aliphatic polyisocyanate (W) 35 — MPA 4.5/X 4.5 7.1 (blocked) In combination with Bayhydrol® U XP 2239 for glass and can coatings with good alkali resistance
Bayhydur® BL XP 2706Blocked, aliphatic polyisocyanate
(HDI/IPDI) 40 DMEA 0 8.2 (blocked)Higher reactivity, DMP blocked, excellent thermostability (yellowing) and better chemical resistance
Imprafix® 2794 XP Blocked, aliphatic polyisocyanate (HDI) 38 — 0 12.7 (blocked)High reactivity (DMP blocked) very good thermostability (yellowing), good caustic resistance
Baybond® XL 6366 Blocked, aliphatic polyisocyanate (HDI) 45 — 0 12.5 (blocked) Medium reactivity (MEKO blocked)
Baybond® XL 825 Blocked, aliphatic polyisocyanate (HDI) 30 — 0 10.0 (blocked) Low reactivity (CPL blocked), thermostability (yellowing)
Baybond® XL 7270 Blocked, aliphatic polyisocyanate (HDI) 30 — 0 13.1 (blocked) Low reactivity (CPL blocked), thermostability (yellowing)
ORGANIC CONSOLVENT CONTENT [%] IN
Self-crosslinking urethane resins for 1K waterborne stoving systems
Bayhytherm® 3146Aliphatic, self-crosslinking baking
urethane resin 46 DMEA NMP 1, SN/MPA 3* For OEM primer surfacers with high solids content; also for general industrial coatings
Bayhytherm® 3246 XPAliphatic, self-crosslinking baking
urethane resin 46 DMEA MPA 2.6, SN 2.4 Further development of Bayhytherm® 3146 without NMP
Blocked polyisocyanatesfor 1K waterbornestoving systems
39
PROPERTIES & APPLICATIONS
NCO CONTENT[%] ON SOLIDS
INDUSTRIAL METAL
Bayhydur® BL 5335 Blocked, aliphatic polyisocyanate (W) 35 — MPA 4.5/X 4.5 7.1 (blocked) In combination with Bayhydrol® U XP 2239 for glass and can coatings with good alkali resistance
Bayhydur® BL XP 2706Blocked, aliphatic polyisocyanate
(HDI/IPDI) 40 DMEA 0 8.2 (blocked)Higher reactivity, DMP blocked, excellent thermostability (yellowing) and better chemical resistance
Imprafix® 2794 XP Blocked, aliphatic polyisocyanate (HDI) 38 — 0 12.7 (blocked)High reactivity (DMP blocked) very good thermostability (yellowing), good caustic resistance
Baybond® XL 6366 Blocked, aliphatic polyisocyanate (HDI) 45 — 0 12.5 (blocked) Medium reactivity (MEKO blocked)
Baybond® XL 825 Blocked, aliphatic polyisocyanate (HDI) 30 — 0 10.0 (blocked) Low reactivity (CPL blocked), thermostability (yellowing)
Baybond® XL 7270 Blocked, aliphatic polyisocyanate (HDI) 30 — 0 13.1 (blocked) Low reactivity (CPL blocked), thermostability (yellowing)
AUTO OEM
GLASS COATINGS
Bayhytherm® 3146Aliphatic, self-crosslinking baking
urethane resin 46 DMEA NMP 1, SN/MPA 3* For OEM primer surfacers with high solids content; also for general industrial coatings
Bayhytherm® 3246 XPAliphatic, self-crosslinking baking
urethane resin 46 DMEA MPA 2.6, SN 2.4 Further development of Bayhytherm® 3146 without NMP
* NMP-free alternatives available
= especially suitable = suitable
40
Hardeners for high-grade, lightfast powder coatings with polyurethane quality.
Powderhardeners
TYPE
SUPPLY FORM
Tg [°C]
Crelan® EF 403Internally blocked linear IPDI
polyisocyanate Flakes 40–55 (13.5) internally 310 LF 15 min/180 °CFor emission-free powder coatings with outstanding levelling and pigment wetting and for special one-shot matte coatings
Crelan® UIBlocked linear IPDI
polyisocyanate Flakes > 60 (11.5) 365 LF 15 min/180 °CFor powder coating with good levelling and good pigment wetting or to improve coating properties of hybrid and TGIC systems
Crelan® NI-2Blocked branched IPDI
polyisocyanate Prills 55–60 (15.0) 280 LF 15 min/180 °CFor economical standard powder coatings with good levelling, good pigment wetting and outstanding corrosion resistance
Crelan® VP LS 2256Blocked branched IPDI
polyisocyanate Flakes 46–58 (15.0) 280 LF 15 min/180 °CFor high chemical resistance powder coatings with easy-to-clean properties and standard powder coatings with good overall properties
Crelan® NW-5Blocked branched W
polyisocyanate Prills 48–58 (12.7) 335 LF 15 min/175 °CFor higher reactive powder coatings with excellent flexibility and corrosion resistance properties
BLOCKED NCO CONTENT ONSUPPLY FORM APPROX. [%]
41
EQUIVALENTWEIGHT APPROX.
STANDARDBAKE CYCLE
Crelan® EF 403Internally blocked linear IPDI
polyisocyanate Flakes 40–55 (13.5) internally 310 LF 15 min/180 °CFor emission-free powder coatings with outstanding levelling and pigment wetting and for special one-shot matte coatings
Crelan® UIBlocked linear IPDI
polyisocyanate Flakes > 60 (11.5) 365 LF 15 min/180 °CFor powder coating with good levelling and good pigment wetting or to improve coating properties of hybrid and TGIC systems
Crelan® NI-2Blocked branched IPDI
polyisocyanate Prills 55–60 (15.0) 280 LF 15 min/180 °CFor economical standard powder coatings with good levelling, good pigment wetting and outstanding corrosion resistance
Crelan® VP LS 2256Blocked branched IPDI
polyisocyanate Flakes 46–58 (15.0) 280 LF 15 min/180 °CFor high chemical resistance powder coatings with easy-to-clean properties and standard powder coatings with good overall properties
Crelan® NW-5Blocked branched W
polyisocyanate Prills 48–58 (12.7) 335 LF 15 min/175 °CFor higher reactive powder coatings with excellent flexibility and corrosion resistance properties
FUNCTIONALITY* APPROX.
= Butyl acetate= Dimethyl ethanol amine= Ethyl acetate= Hexamethylene diisocyanate= Isobutanol= Isophorone diisocyanate= Diphenylmethane diisocyanate
= Methoxypropylacetate= N-Methyl pyrrolidone = Dipropylenglycoldimethylether= Solvent naphtha = Toluene diisocyanate= Trial products= Xylene
BADMEAEAHDIIBIPDIMDI
MPANMPPG DMESNTDI VP LS... XP...X
LEGEND
PROPERTIES & APPLICATIONS
* LF = Low functionality
43
At Bayer innovation is in our DNA. Ever since
Otto Bayer discovered polyurethanes in 1937,
we have been driving polyurethane innovations
in coatings and adhesives as well as in other
application areas. As our partner you enjoy fast-
lane access to polyurethane innovations, and
can help us in developing the next generation of
polyurethanes to meet the consumer electronics
industry’s upcoming challenges and needs. What
can we offer you?
• Powerful know-how on both established and
new polyisocyanates, as well as on new poly-
urethane hybrid technologies.
• The prospect of new application technologies
to enable efficient processes.
• More sustainable, biomass- or CO2-based
materials that do not sacrifice high performance.
Join us to shape the future!
Fast-lane access to polyurethane innovations
Bayer MaterialScience AG51368 Leverkusen Germany
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Edition: 2015-04 · Order-No.: MS00070924 · Printed in Germany · E
Bayer MaterialScience AG51368 Leverkusen Germany