Procedures Rev 2 English Vers.

8/10/2019 Procedures Rev 2 English Vers.

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QUALITY MANAGEMENT PLAN PP0089-13

"SYSTEM IMPROVEMENT TREAT. SEWAGE WASTEWATER"PROJECT

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WORK PROCEDURES DATE 03/07/13

SURFACE PREPARATION AND COATING APPLICATION OVERVIEW 01

STRUCTURES, TANKS INTERIOR AND EXTERIOR

COATING PROCEDURES

OWNER : SOCIEDAD MINERA CERRO VERDE S.A.A.

CUSTOMER : ACCUAPRODUCT S.A.C

CONTRACTOR :PENTATECH CONSTRUCCIN S.A.C.

ITEM NAME TITLE SIGNATURE DATE

DIRECTED

TOIng. Renzo Vargas

PENTATECH CONSTRUCCIN SACQUALITY CONTROL AND

ASSURANCE CHIEF

03/07/13

REVIEWED

BYRicardo Martnez

Sherwin Williams PerPlant & Technical Dept.

Sub-Manager

03/07/13

WRITTEN BY Ing. Didiana Huaigua Sherwin Williams PerCommercial Tech Councelor

03/07/13

CONTROLLED COPY N 1

Effective Date::

ISSUE DATE CHANGES

REV 1 04/07/2013 NAME PROJECT CHANGED


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TABLE OF CONTENTS

1. OBJECTIVE

2. SCOPE

3.

STANDARDS AND REFERENCE DOCUMENTS

4. DEFINITIONS

5.

COATING SYSTEM SPECIFIED

6. SURFACE PREPARATION AND APPLICATION

7.

RESPONSABILITIES

8. INSPECTION

9.

HEALTH, SAFETY AND ENVIRONMENT

10.APPENDICES

a.

COVERAGE

b. WET FILM THICKNESS (WFT)

c.

APPLICATION LOSS

d.

TOUCH-UP PROCEDURE


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1.

OBJECTIVE

The current document will establish the procedures for: surface preparation, coating application forinterior and exterior tanks structures.

2. SCOPE

This procedure is applicable for coatings application of interior and exterior tank structures, new armedtanks and for coated tanks beginning its preventive maintenance.

3. STANDARDS REFERENCE

Especificacin o contrato.

Norma NTP ISO 9001:2001, Quality Management Systems

SSPC : Society for Protective Coatings

ASTM : American Society for Testing and Materials

Organization Standard Description

SSPC SP1 Solvent Cleaning

SSPC SP11 Power Tool Cleaning to Bare Metal

SSPC SP6/NACE N3 Commercial Blast Cleaning

SSPC SP5/NACE N1 White Metal Blast Cleaning

SSPC SP10/NACE N2 Near-White Metal Blast Cleaning

SSPC AB1 Abrasive specification/Mineral and Slag Abrasives

SSPC AB2Abrasive specification/Cleanliness of Recycled FerrousMetallic Abrasives

SSPC AB3Abrasive specification/Newly Manufactured or Re-Manufactured Steel Abrasives

SSPC Vis1 Guide and Reference Photographs for Steel SurfacesPrepared by Dry Abrasive Blast Cleaning

SSPC Guide 15Field Methods for Retrieval and Analysis of Soluble Salts onSteel and Other Nonporo.

SSPC PA1 Shop, Field, and Maintenance Painting of Steel

SSPC PA2 Measurement of Dry Coating Thickness With Magnetic Gages

NACE SP0188Discontinuity (Holiday) Testing of New Protective Coatingson Conductive Substrates

ASTM D 4285Standard Test Method for Indicating Oil or Water inCompressed Air

ASTM D 4417 Field Measurement of Surface Profile of Blast Cleaned Steel

ASTM E 337 Measuring Humidity with a Psychrometer


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ASTM D 4414 Measurement of Wet Film Thickness by Notch Gages

ASTM D 4541Standard Test Method for Pull-Off Strength of Coatings UsingPortable Adhesion Testers

ASTM D5162Standard Practice for Discontinuity (Holiday) Testing ofNonconductive Protective Coating on Metallic Substrates

ISO 8502-3Loose particulate present on a steel surface prepared forpainting arising from blast cleaning

4.

DEFINITIONS

4.1.

SpecificactionReferred to the cautions taken on the surface coating, considering all possible factors for the protectionto be lasting. Each project has a specification prevaling for surface preparation and application, coatingand inspections to be carried out on the coated structures.

4.2.

Coating SystemsReferred to the Type and total number of coats to be applied on the substrate, under predeterminedorder.

4.3.

ContractorOrganization responsible before the coating application owner.

4.4.

RegisterDocument which provides objective evidence of the performed activities or obtained results.

4.5. Quality Records

Are the support, on paper, microfilm or digital file which reflects and copy the results of variablenature, which are direct or indirect consequence of the activities performed related to the appliedquality during coating application.

4.6.

FilingPhysic or digital media (folder, portfolio or similar) where are kept and mantained the Records and/ordocuments resulting of the Quality Management Plan.

5. COATING SYSTEM SPECIFIED

5.1

Surface Preparation5.1.1. Structures and Tank Exterior (System 2)

Type Standard

Commercial Blast Cleaning SSPC-SP6/NACE N3

Roughness Profile 2.0 mils

5.1.2. Interior de Tanque (Sistema 4)

Type Standard

Near-White Metal Blast Cleaning SSPC-SP10/NACE N2

Roughness Profile 2.0 mils


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5.2

Coating System (Structures and Tank Exterior)

Coat Paint EPS (mils)

Base ZINC CLAD 60 2.5

Finishing MACROPOXY 850 5.0

EPS TOTAL (mils) 7.5

5.3Coating System (Interior)

Coat Paint EPS (mils)

Base Macropoxy 850 6.0

Finishing Macropoxy 850 6.0

EPS TOTAL (mils) 12.0

6. SURFACE PREPARATION AND COATING APPLICATION

Before starting with coating, the contractor representatives must meet with the owner and thetechnical consultant of Sherwin Williams to unite concepts, coating acceptance criteria andstandards which will determine the linings for coating application.

6.1. Surface Preparation

Type Standard

Solvent Cleaning SSPC-SP1

Near-White Metal Blast CleaningCommercial Blast Cleaning

SSPC-SP10 / NACE N2SSPC-SP6 / NACE N3

6.1.1.

Prior Cleaning

Remove by mechanical tools: scum and welding burr, all sharp or jagged edges must be donesmooth.

If steel surfaces are found contaminated with grease and/or oil, must be washed with water andindustrial detergent and then be rinsed with fresh water according to Standard SSPC-SP1.

SSPC-SP1: Solvent Cleaning: Remove all visible grease, oils, cutting compounds and other solublecontaminants from steel surfaces using some of the following methods: cleaned brushes or wipers

soaked in solvent, solvent spraying chlorine, alkaline detergents, etc. It is intended that solvent

cleaning be used prior to the application of paint and in conjunction with surface preparation

methods specified for the removal of rust, mill scale, or paint.


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6.1.2.

Abrasive Blasting Cleaning

SSPC-SP6 Commercial Blast Cleaning: When viewed without magnification, the surface shall be free ofall visible oil, grease, dust, dirt, mill scale, rust, coating, oxides, corrosion products and other foreign

matter of at least 66-2/3% of unit area, which shall be a square 3 in. x 3 in. (9 sq. in.). Light shadows,

slight streaks, or minor discolorations caused by stains of rust, stains of mill scale, or stains of previously

applied coating in less than 33-1/3% of the unit area is acceptable

SSPC-SP10Near-White Blast Cleaning:

This joint standard covers the requirements for near-white blast

cleaning of unpainted or painted steel surfaces by the use of abrasives. These requirements include the

end condition of the surface and materials and procedures necessary to achieve and verify the endcondition. A near-white metal blast cleaned surface, when viewed without magnification, shall be free of

all visible oil, grease, dust, dirt, mill scale, rust, coating, oxides, corrosion products, and other foreign

matter, except for staining as noted. Random staining shall be limited to no more than 5 percent of each

unit area of surface as defined, and may consist of light shadows, slight streaks, or minor discolorations

caused by stains of rust, stains of mill scale, or stains of previously applied coating.

6.1.3.

Requirements and general aspects for abrasive blasting

Before abrasive blasting must be evaluated the compressed air to the standard ASTM D4285.

For abrasive quality testing, if mineral or slag) must be performed Chloride Analysis, for exposedsurfaces to weather is recommended that the abrasive has a chloride concentration less than 100ppm and for inmersed surfaces less than 40ppm.

Testing on Non Metallic Abrasives (mineral and slag) according to the SSPC - AB1.

Testing on Metallic Abrasives (shot) according to the SSPC - AB2 and SSPC - AB3.

Check nozzle diameter and outlet pressure from nozzle. For best results pressure must be between90 to 100 psi.

Surface Preparation by Abrasive-blasting to fulfill the specified standards for each coating system

The roughness profile recommended for this project is from 1.5 to 2.0 mils.

We recommend that people who do this work have leather gloves to avoid contamination bysweating.

At the end of the abrasive blasting, must be cleaned by compressed air and if necessary tosupplement with nylon brush, to remove all traces of the abrasive surface preparation. Take thepictorial references corresponding to the qualification of residual dust quantity on surfaces beforecoating in classes of 0 to 5 according to ISO 8502-3, may be taken as acceptance criteria ratingclasses from 0 to 2.

In the case of surfaces treated with non metallic abrasives (mineral and slag), must verify theconcentration of remaining salts in the surface according to SSPC Guide 15 standard. Theadmisible values are: for inmersed and buried surfaces < 3 ppm, for exposed surfaces to weather < 7ppm (reference SSPCSP12).

In structures areas where joints are welded with another one, we recommend taping borders withMasking tape (2 inch), to minimize damage to the applied coat.


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6.2.

Coating Application

6.2.1. Coating Equipments

Contractor Coating equipment must be in good conditions in order to perform an application withoutany problems and achieve best coverage and application time Consider the following:

Choose the application method according to coating type.

Have the necessary gauges for application pressure display (in case of using equipments)

Airless Equipments): A good selection of tip and proper pressure of the equipment will help toobtain better performance and quality.

Conventional Equipments:It is important to consider a pressure equipment with a good selection

of nozzles, valves and needle depending on coating type to be applied. To obtain best coveragewith these equipments is necessary to make major dilution than airless equipment.Suction equipment (Siphon feed gun) can also be used only for touch up as these equipmentstend to spray more as they work with major dilution.

Brushes and Rollers: Must be resistant and adequate to solvent based coating for finishingapplication coats. These devices are used for touch up in specific areas, although the finishing willnot be the same as to applied with equipments.

6.2.2.

Weather Conditions

Consider the following weather conditions for coating:

% Relative Humidity < 85.0 Surface T < 45.0 C Surface T T dew point 3.0 C

Wind Speed no less than a 8 Km/h

Weather conditions must be considered for all coating application, by applying under unsuitableweather conditions can bring consequences such as peeling of multiple coats or a different

finishing than expected.

6.2.3.

Coating Preparation and Application

Once the surface is prepared, cleaned and dried, proceed to mix the coat following theserecomendations.

La preparacin de pintura debe realizarse en recipientes totalmente limpios. Se debe homogenizarCoating preparation must be done in clean containers. Must homogenize the coating separatelyboth part A (resin) as part B (hardener)

Add part B to part A and homogenize with electric agitator or pneumatic type Jiffy, for a maximumof 3 minutes until the mixture takes uniform appearance, add thinner only after the mix of both

components is completed. Filter to another container with mesh of 30 to 60 or Nylon fabrics.


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Each pass of the spray gun shall overlap by 50% to avoid holidays, bare areas and pinholes. Ifrequired, cross spray at right angles to first pass. The gun must always be perpendicular to thesurface at a distance of 25 cm for a conventional equipment and 30 cm for an airless equipment.

It is better for the coating to be applied with natural light, in case of requiring use of artificiallighting area lighting shall be more than 530 lumen /m2, white light of preference.

When exceeding pot life of the coating brings a variation of viscosity losing moisture and levellingproperties so it should be discarded.

Cure is accomplished at 7 days at 25 C and will also depend on the area temperature.

6.2.4.

First Coat Application (Structures and Tank Exterior)

Zinc Clad 60 BR, is an inorganic zinc primer, ethyl silicate type supplied in two parts, liquid base and zincdust. It gives anoutstanding and longlastinggalvanic protection to carbon steel and prevents the corrosiveprogression under the film in case of damage of the paint system.

The mixture requires constant agitation during use and application, otherwise, the zinc dust will settlequickly.

When the environment relative humidity is below to te stated, the film must be water sprayed twohours after the application , every 3 hours to assure its cure.

Due to fast dry of this product the wet film thickness measure is not possible, therefore the measure isthrough its coverage.

El zinc Clad 60 is not repaintable to itself, which means if for any reason occurs a low thickness could not

be repaint with the same product. If found zones with low thinckness, this lacking thickness will berecovered by an organical zinc paint application.

Prior to the following coat application should be done a mist coat, consisting on the application of a coatfrom 1.5 to 2 mils diluted to 40%.

After mist coat application wait a lapsing time before general application of the next coat.

El Zinc Clad 60 has a relation to weight, though is not practical to prepare 1/4 or 1/8 gallon, but using ascale to measure Zinc dust.

PRODUCT Solvent%Volume

SolidsMix

ProportionPot life at

25o C

Repainted at 25oC

min mx

Zinc Clad 60 P30 612

Resin Kit and

filler ZincClad 60 (1

gallon)

4 hours 10 hours Norestriction

Application % vol. dilution Nozzle Spraying Pressure (psi)

Airless Equipment Up to 15% 0.017 - 0.019 1800 - 2500

Conventional EquipmentUp to 10%

FF o FX 704. 50

Brush or Roller --- --- ---


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6.2.5.

Mist Coat

Is a thin film coat with ideal characteristis applied to seal an absorbent dry film as shown ininorganic paints based Ethyl Silicate as Zinc Clad 60, during its cure process where organic vaporsproduced on the formulation leaves empty spaces (air) that must be filled properly letting acontinous film of low thickness dry film which removes the air captured on these spaces.

Mist Coat Application is a thin coat diluted between 40 50 %, in this case of Macropoxy 850, thisthin coat must assure proper seal, which will depend on the technique and expertise of the paintor,can be applied with nozzles of 0.013 or 0.015 (Airless).

After Mist Coat application, wait an time lapse of 60 to 90 minutes before general application of full

coat (Macropoxy 850) reaching the specified thinckness.

6.2.6.

Stripe coat

After applying the first coat, all welds, edges, corners and hard to reach areas shall be stripedwith brush or roller as these areas are critical points of premature failure of the coating system.

A reinforcement on each edge, living angle and weld bead is commonly specified since liquidcoatings tend to flow out of these places. This is a result of weathering during curing. If occurs, thefilm close to edges will be thinner than the rest of the surface and the result can lead to prematurecorrosion in those areas. This situation can become critical when coating fails to nuts, edges, flangesand weld because these are those that hold the pieces together.

Stripe Coat shall be applied after the first coat and before the second or top coat of paint for anyapplication system, with the product of the next coat.

6.2.7.

Second Coat Aplication (Structures, Tank Exterior)

Macropoxy 850.- is a product based on polyamide epoxy of high thickness and fast drying, designed forprotecting steel and concrete exposed to industrial environments. Ideal for the finish of industrialmachinery and equipment. Its high solid content assures a proper protection to edges, corners andwelded areas. This product may be applied directly to barely prepare steel surfaces


SolidsMix


25o

C

Repainted at 25oC

min mx

Macropoxy 850 P33 852 1A : 1B 4 hours 10 hours 3 months


Airless Equipment Up to 15% 0.017 - 0.023 3000-3800

Conventional Equipment Up to 20% E-704 60-65

Brush or Roller Up to 20% --- ---


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6.2.7

First and Second Coat Application (Tanks Interior)

Macropoxy 850.- is a product based on polyamide epoxy of high thickness and fast drying, designed forprotecting steel and concrete exposed to industrial environments. Ideal for the finish of industrialmachinery and equipment. Its high solid content assures a proper protection to edges, corners andwelded areas. This product may be applied directly to barely prepare steel surfaces.


SolidsMix


25o

C

Repainted at 25oC

min mx

Macropoxy 850 P33 852 1A : 1B 4 hours 10 hours 3 months


Airless Equipment Up to 15% 0.017 - 0.023 3000-3800

Conventional Equipment Up to 20% E-704 60-65

Brush or Roller Up to 20% --- ---

6.2.8.

Stripe coat

After applying the first coat, all welds, edges, corners and hard to reach areas shall be stripedwith brush or roller as these areas are critical points of premature failure of the coating system.

A reinforcement on each edge, living angle and weld bead is commonly specified since liquidcoatings tend to flow out of these places. This is a result of weathering during curing. If occurs, thefilm close to edges will be thinner than the rest of the surface and the result can lead to prematurecorrosion in those areas. This situation can become critical when coating fails to nuts, edges, flangesand weld because these are those that hold the pieces together.

Stripe Coat shall be applied after the first coat and before the second or top coat of paint for any

application system, with the product of the next coat.

6. RESPONSIBILITIES

The contractor must have technical personnel qualified in preparation of surface and application aswell as calibrated inspection equipments and in optimal conditions, as minimum: psychrometer,surface thermometer, wet and dry film thickness gauge.

The contractor is responsible for compliance with this procedure and the General conditions of theproject.

The contractor is responsible for the coating application and quality controls of the applied coatings.

The supplier is responsible for advising proper use of provided coatings for the project.

The supplier will provide ongoing advice on the project and carry out periodic visits to the workshop

or works where coatings are being applied.

The supplier will provide their equipments for special tests such as: adhesion, Holiday detector, etc.


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7. INSPECTION

Inspection Equipments and Technical Standards:

Psychrometer Bacharach Type.

Surface Thermometer.

Digital Dry film Detector (mils and microns).

Adhesive Tape Rugosity Profile Detector press-o-film

Tester Adhesion Pull off.

Low voltage Holiday dectector.

For control and quality evaluation of the preparation phasethe following standards will be used:

ASTM D 4285: Oil and Water determination on Air compressed

ASTM D 4417: Rugosity Profile GradeASTM E 337 : Weather Conditions Measure

For control and quality evaluation of the applied painting systemthe following standards will be used:

ASTM D 4414: Measurement of Wet Film Thickness by Notch Gages.

SSPC-PA-2 : Measurement of Dry Coating Thickness With Magnetic Gages.

ASTM D 3359: Adhesion Test Determined by cut.

ASTM D 4541: Adhesion grade Measure through pull off equipments. NACE ST0188-99: Discontinuity (Holiday) Testing of New Protective Coatings on Conductive

Substrates.

8.

HEALTH, SAFETY AND ENVIRONMENT

Personnel who perform coating must follow the work procedures established by the security departmentthat indicates guidelines, patterns, and the acceptable minimum requirements allowing the worker to workin safe conditions, preserving their health and integrity.

Recommendations to follow:

8.1.

Storage of Materials

Coatings and solvents, will be stored in proper places and will only be maintained the necessarymaterials in sufficient quantities for a day s work, storage of coatings remainings or solvents is notallowed.

For proper coating control should have a register of daily consumption and stock.

Electrical equipment in these places and their closeness, shall be of approved, in order to eliminatethe risks of fire and explosion.

Coating should be stored indoors at temperature range of 1040 C, and away from any sourceof ignition.

Store should have good ventilation. No flames or sparks in this area. Any equipment must begrounded.

Each product safety data sheets (MSDS) must visibly stored, indications of safety and first aid arestated in this MSDS.


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8.2.

Coating Area

It is recommended that the painting area to be indoors, with adequate ventilation.

Works flooring must be firm to avoid pollution problem affecting application, drying and curing ofthe coating system.

Structures to be painted should be supported on trestles with brackets with a minimum height of80 cm and distributed properly with spaces that allow free movement for coating applicator.

8.3.

Coating Preparation

Refer to procedures established for Coating Preparation and Application. Minimum PPE use is required, work clothes and their maintenance must be verified by security

responsible. For coating manipulation neoprene gloves and masks should use filters against organicvapors and lenses.

Consider Personal protective equipment if required as well as the recommendations made in thesafety sheet (MSDS) of products to be applied.

To prevent spills on the floor is recommended to use spill trays in the paint preparation area orcover with plastic.

For coating mixing is recommended to use a pneumatic agitator type Jiffy.

Follow the instructions of the Application Procedures of Product Technical Data Sheet.

8.4.

Coating Application

Coating by spraying and brush, will be carry out in places equipped with good ventilation and/orextraction proper for gases and powdered particles.

Electrical equipment in these places and their proximities shall be approved in order to eliminatethe risks of fire and explosion.

Workers must be trained for this type of work and will use appropriate minimum required personalprotective equipment (PPE).

Since many of the equipments used for surfaces preparation by abrasive blasting and coatingapplication use compressed air, workers should be aware that the noise may cause a risk and mustuse ear protectors when working with compressed air- tools.

Should encourage employees to take breaks every so often.

Workers must know the security related by working with high pressure guns during coating

application. For this reason must have qualified and experienced personnel in handling pressureguns.

To facilitate used containers disposal is recommended to remove all coating content during itspreparation.

9.

APPENDICES

9.1.

COVERAGE

Theoretical and practical coverage as follows:


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Theoretical Coverage Rt = 149.02 x % SV m2/gallon

EPS

Practical Coverage Rp = m2/gallonCoated Area

consumed gallons

9.2.

WET FILM THICKNESS : (WFT)

Wet Film thickness to be applied is linked to specified dry film thickness, used dilution and volume solids

percentage, according to the following formule:

WFT = Wet Film Thickness

WFT DFT = Dry Film Thickness

% d = Dilution

% VS = Volume Solids

EPS (1+%d)

%SV

9.3.

APPLICATION LOSS BY ROUGHNESS

Roughness of the surface

A rough and an abrasive surface will require a major amount of coating than a smooth surface. In thiscase is very important the particle size of the material used in abrasive blasting. An abrasive grain thickand hard, leaves a cutting profile much more crude and harsh than one of more fine and soft grain.The roughness causes a considerable increase in the actual surface respecting the projected surface. Thisaspect should necessarily be considered in order to not make mistakes in the calculations.

Is here where definition of bottle dead, known as the amount of coating to be used for covering theincreased area caused by roughness profile achieved during surface preparation.The calculation is done taking into account the ratio of bottle dead depending on profile roughness:


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9.4.

TOUCH UP PROCEDURE

Touch up procedures are ellaborated according to the application type of damage or defect inexisting structures.

a)

Transport and Setup Mechanical Damages ZonesThese damages occur when elements are transported from one place to another and stacking them,also during the setup lifting structures. All the elements having these mechanical damages bytransport and setup most in edges and borders should be repaired. The case is more critical in areaswhere damage has got the metal.

b)

Welded JointsAll the elements that have weld joints and those that by timing shows uniform corrosion, as damagein adjacent welded joints by burns (flame cutting and joints welding).

9.4.1.

Surface Preparation.

a)

Remove by mechanical tools: slag and welding spatter, as are found sharp edges must be rounded.

b)

If steel surfaces are contaminated with welding fumes, grease and/or oil, should be washed withwater and industrial detergent and then rinse with drinking water according to standard SPC-SP1.

c)

Best cleaning method will be according to standard SSPC-SP-11, otherwise apply standard SSPC-SP3

SSPC-SP11: Mechanical or Pneumatic Cleaning to Bare Metal: When viewed without magnification, thesurface shall be free of all visible oil, grease, dirt, dust, mill scale, rust, paint, oxides, corrosion products,and other foreign matter. Slight residues of rust and paint may be left in the lower portion of pits if theoriginal surface is pitted. The surface profile shall not be less than 1 mil (25 microns). Remainings of rustand paint can be slightly on the bottom of the pits if the original surface had these pits. Before surfacepreparation with power tool, remove visible deposits of oil or grease by any of the methods set out in

the SSPC-SP1, cleaning solvents, or other established methods.

Coating Volume (li ters) = CVM

SV

Base Coat Solids Volume : 72 %

Average Roughness Profi le : 2 mils or

: 50.8 microns

Bottle Dead Coefficient : 3.5

Bottle Dead/m2 = 0.0492 liters/m2 or

= 0.0130 gallons/m2

*VS : Volume soli ds

* BDV: Bottle Dead Volume Coefficient


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SSPC-SP3: Power Tool Cleaning: Removes all loose mill scale, loose rust, loose paint, and other loosedetrimental foreign matter by power wire brushing, power sanding, power grinding, power tool

chipping, and power tool descaling. In this type of cleaning you should take care of not polishing themetal surface in order to achieve a good adhesion of paint to the base.

Where the damage gets the metal, is weakened around these areas so all loose paint or poorly added,must be removed with spatulas and then must use a motive equipment (power Sander) to eliminate thereliefs, leaving the repairing area with the appearance of chamfer or down Beach. This procedure isimportant and avoids pulling up the edges of old coating by effect of the solvent on the new coat inthese areas by applying the touch up.

9.4.2.

Coating System for Repainting zones

In repaiting zones must be applied the same coating system according to the specification or technicalrecommendation and to stated thickness.

Damaged area and/or

Rust

Prepared Area through

Manual Cleaning /

mechanical

Fin ishing Appl icat ionPr imer Appl icat ion

Procedures Rev 2 English Vers.

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