Industrial and Marine CoatingsZINC CLAD 60

INORGANIC ZINC ETHYL SILICATE

CODE:PART A: ZNCL60-A

PRODUCT INFORMATION

PRODUCT DESCRIPTIONRECOMMENDED USES

Zinc Clad 60 is an inorganic, ethyl silicate type supplied in two parts, liquid parts and zinc dust. It gives an outstanding and long-lasting galvanic protection to carbon steel and prevents the corrosive progression under the film in case of damage of the paint system. Provides the cathodic protection of the Galvanization mechanism. The coat is self-healing to resume the protection when damage. It protects the steel by means of forming a compact inorganic barrier resistant to solvent.This product is not recommended for direct exposure to aggressive chemical environments without a suitable coating. Content 80% zinc in dry film. Cathodic protection. Solvent resistant. Air dry product.

Effective protection against corrosion of carbon steel treated by means of abrasive blast and an appropriate finish application for immersion service in solvents or neutral solutions, or severe chemical environments.Do not apply oil or alkyd paints directly on Zinc Clad 60. Metallic structures and outside of tanks in coastal marine or high humidity environments Railroad or highway bridges structures High temperature structures or equipments Pulp and paper plants Mining plants Oil shore structures

PRODUCT CHARACTERISTICS

Finish: Mat

Color: Greenish gray

Volume Solids: 61% 2%

Weight Solids: 76% 2 % (ASTM 2696)

Zinc Content in Dry Film: 80% 1 by weight

Specific weight: 4.89 0.11 lb/lt

Mix Ratio: 6.85 lb (3.11 kg) Part A (liquid base) 10.3 lb (4.68 kg) Part B (zinc dust)

Recommended thickness per coat:Wet film: 4.3 8.2 milsDry film: 2.6 5.0 mils

Theorical coverage: 378.5 196.8 sf/gal (35.2 18.3 m2 /gal) approx. (over smooth surface)

Drying Schedule @ 4.3 wet mils @ 50% RH and @

61F(16C)77F (25C)90F (32C)

To touch:20 min5 min3 min

To handle:1 hour45 min30 min

To recoat:

Minimum20 hours10 hours8 hours

MaximumNo restrictionNo restrictionNo restriction

Cure10 days7 days5 days

The reaction mechanism of the self curing inorganic zinc is activated by the air humidity. So when the air relative humidity is below 50%, the film must be water sprayed two hours after the application.

Pot life: 4 hours at 25C (at higher temperature the pot life is reduced)

Shelf life: Part A: 6 months, unopened container Part B: 24 months, unopened container.

Storage: Store in closed containers, in dry and ventilated warehouse at temperature between 10C and 25C

Reducer/Cleaning: R7K58

PERFORMANCE

System tested: (unless otherwise indicated)Surface: SteelSurface Preparation: SSPC-SP6Application: Zinc Clad 60 @ 3 mils dift.

Adhesion:Method: ASTM D4541Result: 284 lb/sf (20 kg/cm2)

Dry heat resistance:Method: ASTM D2485Result: 750F (399 C) Permanent

Abrasion resistance:Method: ASTM D4060, CS17 wheel, 1000 cycles 1 kg loadResult: 326 mg.

Direct impact resistanceMethod: ASTM D2794Result: 60 in. Lb.

Condensation resistance:Method: ASTM D4585, 38 C, 2000 hrs.Result: No fault

Salt fog chamber:Method: ASTM B117, 2000 hrs.Result: No fault

Wet heat resistance:Method: No immersionResult: 115F (46 C)

Flexibility (primer only):Method: ASTM D522, 180 bend, "mandrelResult: Passes

Pencil hardness (zinc only):Method: ASTM D3363Result: 3H

PRODUCT INFORMATION

RECOMMENDED SYSTEMSSURFACE PREPARATION

Immersion:Steel:1 coat Zinc Clad 60 @ 3-5 mils dft

Steel:1 coat Zinc Clad 60 @ 3-5 mils dft1-2 coats Tar Guard @ 8-16 mils dft / layer or1-2 coats Coal Tar Epoxy 388-99 @ 8-16 mils dft / coat

Steel:1 coat Zinc Clad 60 @ 3-5 mils dft1-2 coats Macropoxy 646 @ 4-8 mils dft / coat or1-2 coats Macropoxy 850 @ 4-8 mils dft / coat or1-2 coats Macropoxy MIO @ 4-8 mils dft / coat

Atmospheric:Steel:1 coat Zinc Clad 60 @ 3-5 mils dft

Steel:1 coat Zinc Clad 60 @ 3-5 mils dft1-2 coats Fast Clad Layers Acrylic @ 5-8 mils / coat

Steel:1 coat Zinc Clad 60 @ 3-5 mils dft1-2 coats Macropoxy MIO @ 4-8 mils dft / coat1-2 coats Acrolon 218 HS @ 3-6 mils dft / coat or1-2 coats Poly Lon 1900 @ 2-3 mils dft / coat or1-2 coats Urelux 22 @ 1-2 mils dft / coat

Steel:1 coat Zinc Clad 60 @ 3-5 mils dft1-2 coats Macropoxy 646 @ 4-8 mils dft / coat

Steel:1 coat Zinc Clad 60 @ 3-5 mils dft1-2 coats Acrolon 218 HS @ 3-6 mils dft / coat or1-2 coats Poly Lon 1900 @ 2-3 mils dft / coat or1-2 coats Urelux 22 @ 1-2 mils dft / coat

Important:A bonding coat (mist coat) currently Iponlac 331 anticorrosive over the Zinc Clad 60 coat must be applied to prevent blistering of the subsequent coverage coats.

Do not apply oil or alkyd paints directly on the Zinc Clad 60

The systems listed are representative of the product user. Other systems may be appropriate.

Surface must be clean, dry, and in sound condition. Remove all oil, dust, grease, dirt, loose rust, and other foreign material to ensure adequate adhesion.

Refer to product Application Bulletin for detailed surface preparation information.

Minimum recommended surface preparation:Iron & SteelAtmospheric: SSPC-SP10, 2 mils rugosity profileImmersion: SSPC-SP5, 2 mils rugosity profile

COLOR AVAILABILITY / TINTING

No tinting product

APPLICATION CONDITIONS

Temperature:Environment: 50F (10C) minimum, 86F (30C) maximumSurface: 41F (5C) minimum, 86F (30C) maximum

Relative humidity: 10% minimum, 85% maximum

At least 37F (2.8C) above dew point

For inorganic product curing requires at least 50% RH

Refer to product Application Bulletin for detailed application information.

ORDERING INFORMATION

Packaging: Gallon KITWeight per gallon: 17.2 0.45 lb (7.79 0.2 kg).

SAFETY PRECAUTIONS

Refer to the Material Safety Data Sheet (MSDS) before using. Published technical data and instructions are subject to change without notice.Contact your Sherwin-Williams representative for additional technical data and instructions.

NOTES

This Technical Information supersedes all previous publications. Always ask your SHERWIN WILLIAMS Ecuador representative for the latest information. Given that we do not have control about the application conditions or products service, we do not accept any liability for the results that may be obtained in each particular case. Under no circumstance manufacturer might be responsible for incidental or consequential damages coming from the inadequate use of the product. We recommend to refer to the booklet on Industrial and personal Safety Regulations when working with paints

APPLICATION BULLETIN

SURFACE PREPARATIONSAPPLICATION EQUIPMENT

Surface must be clean, dry, and in sound condition. Remove all oil, dust, grease, dirt, loose rust, and other foreign material to ensure adequate adhesion.

Remove all welding spatters and round all sharp edges.

Iron & Steel, atmospheric service: Remove all oil and grease from surface by Solvent Cleaning perSSPC-SP1. Minimum surface preparation is cleaning SSPC-SP6 with abrasive blast using angular edges grit to get an optimum rugosity profile (2 mils). Apply the anticorrosive to the bare steel within a maximum of 8 hours or before rusting occurs.

Iron & Steel, immersion serviceRemove all oil and grease from surface by Solvent Cleaning per SSPC-SP1. Minimum surface preparation is Near White Metal Blast Cleaning per SSPC-SP10. Blast clean all surfaces using a sharp, angular abrasive for optimum surface profile (2 mils). Apply the anticorrosive to the bare steel within a maximum of 8 hours or before rusting occurs.

For other materials contact the S.W. Technical Department.

The following is a guide. Changes in pressures and tip sizes may be needed for proper spray characteristics. Always purge spray equipment before use with listed reducer. Any reduction must be compatible with the environmental and application conditions.

Reducer/Clean Up: R7K58

Airless SprayPump..25:1 minimumPressure.........................1800 - 2000 psiHose...............................3/8" inside diameterNozzle ............................0.017" - .0.021"Ruid pressure .80 to 100 psiReduction .......................As needed up to 10% by volumeConventional Spray(continuous agitation required)Gun ................................De Vilbis JGA 5023Fluid Nozzle ...................FX CAir Nozzle.......................704Atomization Pressure ....50 psiFluid Pressure ...............80 - 100 psiReduction ......................As needed up to 15% by volume

Keep pressure pot at level of applicator to avoid blocking of fluid line due to weight of material. Blow back coating in fluid line at intermittent shutdowns, but continue agitation at pressure pot.

Brush .........................For touch-up onlyBrush Natural Bristle Reducer.As required up to 10% by volume

Roller....Not recommended

Equivalent equipment to the above mentioned may be used

APPLICATION CONDITIONS

Temperature:Environment: 50F (10C) minimum, 86F (30C) maximumSurface: 41F (5C) minimum, 86F (30C) maximum

Relative humidity: 10% minimum, 85% maximum

At least 37F (2.8C) above dew point

For inorganic product curing requires at least 50% RH

APPLICATION BULLETIN

APPLICATION PROCEDUREPERFORMANCE RECOMENDATIONS

Surface preparation complete as indicated.

Mixing Instructions:The Zinc Clad 60 comes in 2 gallon containers (3.11 kg. Comp. A -liquid base and 4.68 kg., comp. B - zinc dust) of which at yields a mixed gallon.

Thoroughly agitate the mix of both components by mechanical stirring taking care of not adding air. Ensure that no Zinc residue remains in the bottom of container.

After mixing, pouring the mixture through mesh # 30. The mixed material must be used within 4 hours, pot life of the product. This is also temperature dependent.If using thinner, add only after both components were thoroughly mixed.

The mixture requires continuous agitation of the mixture during use and application, otherwise, zinc dust will settle quickly.

Apply in even coats, overlapping each pass with the previous one and sure to reach all surface, especially on the edges, rivets, bolts and all those considered weak corrosion.

Apply the paint in thickness indicated:

Recommended thickness per coat:Wet film: 4.3 - 8.2 milsDry Film: 2.6 - 5.0 mils

Theoretical coverage: 35.2 - 18.3 m2/gal. approx. (On smooth surface)

Drying Schedule @ 4.3 wet mils @ 50% RH and @

61F(16C)77F (25C)90F (32C)

To touch:20 min5 min3 min

To handle:1 hour45 min30 min

To recoat:

Minimum20 hours10 hours8 hours

MaximumNo restrictionNo restrictionNo restriction

Cure10 days7 days5 days

The reaction mechanism of the self curing inorganic zinc is activated by the air humidity. So when the air relative humidity is below 50%, the film must be water sprayed two hours after the application.

Paint all joints, welds, and sharp angles to prevent early failure in these areas.

When using spray application, use a 50% overlap with each pass gun to avoid empty areas without coverage and pores. If necessary, distribute the spray cross at right angles.

The performance ranges are calculated volume solids and not include loss factor for application of the surface profile, roughness, porosity or surface irregularities, skill and Applicator technique, application method, material loss during mixing, spillage, over-dilution, weather and excessive film thickness.

Excessive dilution of the material can affect the thickness of the film, looks and performance.

Do not mix previously catalyzed material with new material.

Do not apply the material after the recommended life.

To prevent blockage of spray equipment, cleaning equipment after use or after a long pause using R7k58

Keep the pressure vessel at the applicator to avoid blockage of the fluid line due to the weight of the material. Return the paint in the fluid line in intermittent pauses, but maintain agitation in the pressure vessel.

The application of the paint on or under the film thickness recommended may affect product performance.

The drying of these products are produced only by evaporation the solvent content in the film, which can be retarded for high build paint, excess layers or not respecting the minimum recoat time.Refer to Product Information sheet for properties and additional performance characteristics.

CLEAN UP INSTRUCTIONSSAFETY PRECAUTIONS

Clean spills and spatters immediately with R7K58. Clean tools immediately after using with R7K58 Follow the manufacturer's safety recommendations when using solvents.

Refer to the Material Safety Data Sheet (MSDS) before using.

The published technical data and instructions are subject to change without notice.Contact your Sherwin-Williams representative for additional technical data and instructions.

Rev. 12-2012Page of