OMEGA-GLYDE ® Polytetrafluoroethylene (PTFE) PC) Tel: (08) 9412 3999 17 Biscayne Way, JANDAKOT WA 6164 Email: [email protected] www.polytech-plastics.com.au
OMEGA-GLYDE ® Polytetrafluoroethylene (PTFE) PC)
Tel: (08) 9412 3999 17 Biscayne Way, JANDAKOT WA 6164 Email: [email protected]
www.polytech-plastics.com.au
OMEGA-GLYDE ® Polytetrafluoroethylene (PTFE) – originally given the trade name of Teflon. OMEGAGLYDE ® PTFE Sheet, Rod
and Tube is resistant to practically every chemical and has a surface as slippery as ice on ice to which no substance will adhere. The fluorocarbon plastics include Polytetrafluoroethylene (PTFE), polychlorotrifluoroethylene (PCTFE). Polyvinylidene (PVDF), polyvinyl fluoride (PVF) and a copolymer of tetrafluoroethylene and hexafluoropropylene (FEP) form a relatively new group of plastics remarkable for their extreme chemical resistance, excellent dielectric properties and wide working temperature range.
MAIN ADVANTAGES OF OMEGA-GLYDE ® PTFE SHEET, ROD AND TUBE
• Very high chemical resistance • Lowest co-efficient of friction • Continuous operating use at high temperature • Physiologically inert – unaffected by almost all chemicals • Low flammability • Excellent dielectric properties • Easy machinability
WEAKNESSES OF OMEGA-GLYDE ® PTFE SHEET, ROD AND TUBE
• Low mechanical properties • Relatively high cost • Poor dimensional stability due to the high elastic deformation and high coefficient of thermal expansion • PTFE extrusions are likely to contain residual stresses • Non-stick surface because adhesives cannot be used
OMEGA-GLYDE ® Polytetrafluoroethylene (PTFE)
SHEET, ROD AND TUBE
APPLICATIONS
In The Chemical Industry: Solid
pipe and fittings; Liner for steel pipe and fittings, hoses, pumps, valves; Glass backed sheet for lining vessels; Mass transfer tower packing; Gaskets and spacers; Valve components; Expansion bellows; Shaft packing; Tubing; Heat shrinkable tubing; Sample collection media.
In The Mechanical And Architectural
Industry: Seals; Piston rings;
Bushings; Bearings; Slide bearings; Coated fabrics for water repellency, stain protection; Coating films for panels, signs etc.
Electrical Industry: Wire and cable
insulation; Fibre optics coating.
PTFE Chemically Modified PTFE modified with hexafluoropropylene (HFP) and perfluoropropylvinylether (PPVE) results in a reduced crystalline phase and an increased
amorphous phase. It has enhanced mechanical performance, with a very high recovery and ultra-low deformation under load. Chemically modified
PTFE has reduced permeability, no polymerisation and a longer in-service life. It can outperform PTFE, filled PTFE, PFA and FEP.
Key Points
• Lowest coefficient of friction
• Very high chemical resistance
• High operating temperature
• Physiologically inert
• Low flammability
• Excellent electrical properties
• Easy machinability
Ethylene Tetrafluoroethylene (ETFE)
FEP (Fluorinated ethylene propylene) is extruded and injection moulded. It has the chemical resistance, mechanical and electr ical properties of PTFE but a more narrow temperature range – maximum temperature is 205ºC. FEP has better clarity than PTFE and is used in tubing and bag applications. A plastic converter can apply knit fiberglass to one side of an FEP sheet. Fabricator can weld glass backed sheets together over cylindrical moulds and vessel closure moulds (flat or dished or conical heads). They then overwrap this liner with fiberglass reinforced thermoset resin to make chemical resistant tanks, vessels and columns for the corrosive chemical
industry.
APPLICATIONS
• Chemical Industry: Solid
pipe and fittings; Liner for
steel pipe and fittings, hoses,
pumps; Mass transfer tower
packing; Gaskets and spacers;
Valve components; Shaft
packing.
• Mechanical and
Architectural Industry: Seals; Piston rings; Bushings;
Bearings; Slide bearings.
APPLICATIONS
• Chemical industry: - Solid pipe
and fittings; Liners for steel pipe
and fittings, Glass backed sheet
for lining vessels; Tubing; heat
shrinkable tubing
• Mechanical and Architectural
Industry: - Coated fabrics for
water repellency stain protection;
Coating films for panels, signs
etc.
• Electrical Industry: - Wire and
cable insulation.
Fluorinated Ethylene Propylene (FEP)
Perfluoroalkoxy (PFA) is melt processable. Its properties are similar to those of PTFE and include resistance to practically all chemicals, a useful temperature range, resistance to weathering, low coefficient of friction and excellent electrical insulation characteristics. It is, however, more expensive than PTFE and FEP resins. High purity grades are also available. It is not attacked by inorganic acids, bases, halogens, metal salt solutions, organic acids or anhydrides. Aliphatic and aromatic hydrocarbons, alcohols, aldehydes, ketones, ethers, amines, esters, chlorinated compounds and other polymer solvents have little effect.
Perfluoroalkoxy (PFA) Perfluoroalkoxy (PFA) is melt processable. Its properties are similar to those of PTFE and include resistance to practically all chemicals, a useful temperature range, resistance to weathering, low coefficient of friction and excellent electrical insulation characteristics. It is, however, more expensive than PTFE and FEP resins. High purity grades are also available. It is not attacked by inorganic acids, bases, halogens, metal salt solutions, organic acids or anhydrides. Aliphatic and aromatic hydrocarbons, alcohols, aldehydes, ketones, ethers, amines, esters, chlorinated compounds and other polymer solvents have little effect.
Key Points
• Maximum working temperature 260°C • Low gas permeability • High purity • Smoother surface texture than FEP or PTFE • High mechanical strength at elevated temperatures • UL94 V0 flame rating • Excellent electrical properties • Limiting oxygen index 95 • Gamma, ETO, e-beam autoclave sterilisable
APPLICATIONS
• Chemical industry: - Solid pipe and
fittings; Liners for steel pipe and
fittings, Glass backed sheet for lining
vessels; Tubing; heat shrinkable tubing
• Mechanical and Architectural
Industry: - Coated fabrics for water
repellency stain protection; Coating
films for panels, signs etc.
• Electrical Industry: - Wire and
cable insulation.
APPLICATIONS
• Chemical industry: - Solid pipe and
fittings; Liners for steel pipe and
fittings, Glass backed sheet for lining
vessels; Tubing; heat shrinkable tubing
• Mechanical and Architectural
Industry: - Coated fabrics for water
repellency stain protection; Coating
films for panels, signs etc.
• Electrical Industry: - Wire and
cable insulation.
Polyvinyl Fluoride (PVF) PVF (polyvinyl fluoride) is a member of the fluorocarbon family. It has outstanding resistance to weathering and good resistance to abrasion and steaming. It is used as a surfacing film for industrial, architectural and decorative building materials.
DELIVERY PROGRAM
Sheet: Normal Sheet sizes 1200 x 1200mm; 2000mm x 1000mm; 600mm x 600mm
Available Thicknesses: 1mm; 1.5mm; 2mm; 2.5mm 3mm; 4mm; 4.5mm; 5mm; 6mm; 8mm; 10mm; 12mm; 15mm ; 20mm; 25mm;
30mm; 40mm;50mm; 60mm; 70mm; 80mm; 90mm; 100mm; 110mm; 120mm;
Also Available In Rolls: 1200mm wide – Plain and Etched 1 side
Available Thicknesses: 0.25mm; 0.40mm; 0.50mm; 0.76mm; 1mm; 1.5mm; 2mm ; 2.5mm 3mm;
Rod: Normal lengths 3000mm; 2000mm & 1000mm
Available Diameters- 6mm; 8mm; 10mm; 12mm; 15mm; 16mm; 20mm; 25mm; 30mm; 35mm; 40mm; 45mm; 50mm; 55mm; 60mm; 65mm; 70mm; 75mm; 80mm; 85mm; 90mm; 95mm; 100mm; 110mm; 120mm; 130mm; 140mm; 150mm; 160mm; 170mm; 180mm; 200mm;
Tube: Normal lengths - 2000mm & 1000mm
Available Diameters: 10mm; 12mm; 15mm; 16mm; 20mm; 25mm; 30mm; 35mm; 40mm; 45mm; 50mm; 55mm; 60mm; 65mm; 70mm;
75mm; 80mm; 85mm; 90mm; 95mm; 100mm;105mm; 110mm;115mm; 120mm; 125mm; 130mm; 135mm; 140mm; 145mm; 150mm; 155mm; 160mm; 165mm; 170mm; 175mm; 180mm; 185mm; 190mm; 195mm; 200mm; 205mm; 210mm; 215mm; 220mm; 225mm; 230mm; 240mm; 245mm; 250mm; 255mm; 260mm; 265mm; 270mm; 280mm; 285mm; 290mm; 295mm; 300mm; 310mm; 320mm; 330mm; 340mm; 350mm; 360mm; 370mm; 380mm; 390mm; 400mm; 410mm; 425mm; 440mm; 450mm; 465mm; 480mm; 490mm; 500mm; 515mm; 530mm; 545mm; 560mm; 570mm; 590mm; 610mm; 620mm; 640mm; 655mm; 670mm; 680mm; 690mm; 700mm; 720mm; 740mm; 750mm; 770mm; 790mm; 815mm; 840mm; 880mm; 900mm; 910mm; 930mm; 950mm; 965mm; 1000mm; 1050mm; 1120mm; 1215mm; 1260mm; 1300mm; 1320mm; 1340mm; 1380mm; 1440mm;
APPLICATIONS
• Sample collection media
(chemical industry)
• Coating films for panels, signs
etc. (mechanical and
architectural industry)
• Release film, printed circuits
(electrical industry)
PROPERTIES of OMEGA-GLYDE ® Polytetrafluoroethylene (PTFE)
CriteriaTest
MethodUnits PTFE PTFE - G PTFE -LG
PTFE -
HGPTFE - C PTFE -B PTFE - GR
PTFE -
CERFEP PFA Mod ETFE
Specific Gravity ISO 1183 g/cm³ 2,18 2,22 2,20 2,27 2,17 3,90 2,20 2,34 2,2 2,2 2,1
Specific Volume ISO 1183 cm³/g 0,46 0,45 0,46 0,44 0,46 0,26 0,46 0,43 0,46 0,46 0,48
Min Service Temp ⁰C -200 -200 -200 -200 -200 -200 -200 -200 -100 -100 -190
Max Service Temp ⁰C 260 260 260 260 260 260 260 260 205 240 150
Max Service Temp Short Term ⁰C 310 310 310 310 310 310 310 310 220 260 170
Melting Point ⁰C 327 327 327 327 327 327 327 327 240 280 185
Thermal Conductivity ISO 8302 W/(mK) 0,25 0,41 0,35 0,42 0,58 0,57 0,38 0,3 0,25 - 0,23
Deflection temperature at 1.80Mpa ISO 75 ⁰C 56 51 48 74
Deflection temperature at 0.45Mpa ISO 75 ⁰C 121 70 73 104
Specific Heat ISO 22007 J/g.K 1,00 1,00 0,85 0,95 0,80 0,80 1,00 0,85 1,12
Flammability UL-94 V0 V0 V0 V0 V0 V0 V0 V0 V0 V0 V0
Oxygen Index ASTM D621 % 530 280 530 630 530 530 35 94 30
Coefficient of Thermal Expansion ISO 11359 10ˉ⁵m/m⁰C 12,5 13,6 13,6 13,6 11,4 13,4 11,2 13,0 9,9 12,0 12,0
Impact resistance ISO 179 KJ/m² 0,16 0,173 0,17 0,18 0,169 0,161 0,17 0,2 no br.
Ball Indentation Strength ISO 2039 Mpa 30 30 32 45 30 50 35 60 28
Hardness ISO2039 Shore (D) 57 64 60 65 68 67 59 62 55 (D) 60 (D) -
Notched Izod Impact Strength ISO 180 J/m 187 no br. no br. no br.
Moisture Absorption ISO 62 % 0,05 0,05 0,05 0,05 0,05 0,05 0,05 0,05
Moisture Absorption at Saturation ISO 62 % 0,08 0,08 0,08 0,08 0,08 0,08 0,08 0,08
Resistance to UV/ Weathering NO YES YES
Wear 9 10 8 10 9 9 10 10 9 10 11
Friction Sliding Coefficient vs steel ISO 8295 Mpa 0,06 0,12 0,11 0,12 0,12 0,13 0,07 0,13 0,13 0,08 0,14
Friction Sliding Coefficient vs self ISO 8295 Mpa 0,06 0,12 0,11 0,12 0,12 0,13 0,07 0,13 0,15 0,12 0,16
Tensile Strength ISO 527 Mpa 22 17 25 12 14 16 17 20 21 27 45
Compressive Strength ISO 604 Mpa 4,5 7 6,5 7,5 8,8 8,2 7 6,8
Compressive Modulus ISO 604 Mpa 700 860 780 920 970 1050 870 990
Elongation ISO 527 % 300 225 275 230 138 175 225 190 300 300 275
Creep Strength Mpa 14 12 12 12 5 8 6 6
Flexural Strength ISO 178 Mpa no br. no br. no br. no br. no br. no br. no br. no br. no br. no br. no br.
Flexural Modulus ISO 178 Mpa 345 450 420 620 655 655 1378
Dielectric Strength, 3mm thk IEC243 kV/mm 19-23 12,6 N/A 95 15 19-23 19-23 15-19
Dielectric Constant at 1kHz IEC 250 2,1 2,1 2,1 2,6
Surface Resisitivity IEC 60093 Ω > 10⁷ > 10¹⁶ > 10¹² >10¹⁴ > 10⁷ > 10¹⁶ > 10⁵ > 10¹²
Volume Resistivity at 23⁰C, 50% RH IEC 093 Ω. Cm > 10¹⁸ > 10¹⁸ 2 x 10¹⁴ 10¹⁶
Dissipation Factor at 1kHz IEC 250 5E-05 0,0002 0,0002 0,0002 0,0002 0,0002 0,0002 0,0002 0,00005 0,0003 0,0008
Arc Resistance ASTM D495 s > 300 > 180 > 180 75
Refractive index ISO489 1,35 1,344 1,35 1,403
Transmittance ASTM D1003 (%) - >95 >95 -
Acids VG VG VG VG VG
Alkalis VG VG VG VG VG
Oils / Petroleum VG VG VG VG VG
Good Resistance
organic
solvents,
alcohols,
hydron
carbons,
fuels
hot water,
washing
soda,
organic
solvents,
alcohols,
hydron
carbons,
fuels
hot water,
washing
soda,
organic
solvents,
alcohols,
hydron
carbons,
fuels
Food Safe FDA YES YES YES YES NO NO NO NO YES YES YES
PHYSICAL
THERMAL
MECHANICAL
ELECTRICAL
CHEMICAL
OPTICAL
Tel: (08) 9412 3999 17 Biscayne Way, JANDAKOT WA 6164 Email: [email protected]
www.polytech-plastics.com.au