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Devcon Wear Resistant Putty WR

Devcon Wear Resistant Putty WR

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Devcon Wear Resistant Putty (WR-2)

Devcon Wear Resistant Putty Description: Devcon Wear Resistant Putty is a ceramic-filled epoxy putty with a smooth, low-friction finish.

Devcon Wear Resistant Putty Intended Use : Devcon Wear Resistant Putty is used For repairing flange faces, machine ways, valve seats and bodies, and tracing guides

Devcon Wear Resistant Putty Product features : Devcon Wear Resistant Putty is Rebuilds and protects interfacing metal surfaces, Protects metal from bi-metallic corrosion, Repairs metals and concrete.

Devcon Wear Resistant Putty Limitations : Not recommended for long term exposure to concentrated acids or to organic solvents

Typical Physical Properties : Technical data should be considered representative or typical only and should not be used for specification purposes

Cured 7 days @ 75 degrees faren height

Adhesive Tensile Shear - 2,200 psi

Coefficient Degrees Farenheight Thermal Expansion - 32 [(in.)/(in). x °F)] x 10(-6)

Color - Dark Grey

Compresive Strength - 9,800 psi

Coverage/lb - 56 sq. in./lb. @ 1/4"

Cured Hardness - 85D

Cured Shrinkage - 0.0005 in./in.

Dielectric Constant - 6.3

Dielectric Strength - 400 volts/mil

Flexural Strength - 6,500 psi

Functional Cure - 16 hrs

Mix Ratio by Volume - 4:1

Mix Ratio by Weight - 9:1

Mixed Viscosity - Putty

Modulus of Elasticity - 7.5 psi x 10(5)

Pot Life @ 75F - 45 min.

Recoat Time - 2-4 hrs

Solids by Volume - 100

Specific Gravity - 1.8 gm/cc

Specific Volume - 13.9 in.(3)/lb.

Temperature Resistance - Wet: 130°F; Dry: 250°F

Thermal Conductivity - 1.67[(cal x cm)/(sec x cm(2)

TESTS CONDUCTED :

Adhesive Tensile Shear ASTM D 1002

Cure Shrinkage ASTM D 2566

Dielectric Strength, volts/mil ASTM D 149

Dielectric Constant ASTM D 150

Modulus Degrees Farenheight Elasticity ASTM D 638

Compressive Strength ASTM D 695

Cured Hardness Shore D ASTM D 2240

Coef. Degrees Farenheight Thermal Expansion ASTM D 696

Flexural Strength ASTM D 790

Thermal Conductivity ASTM C 177


Surface Preparation : 1. Thoroughly clean the surface with Devcon® Cleaner Blend 300 to remove all oil, grease and dirt.

2. Grit blast surface area with 8-40 mesh grit, or grind with a coarse wheel or abrasive disc pad, to create increased surface area for better adhesion (Caution: An abrasive disc pad can only be used provided white metal is revealed).

Desired profile is 3-5 mil, including defined edges (do not "feather-edge” epoxy).

Note: For metals exposed to sea water or other salt solution, grit-blast and high-pressure-water-blast the area, then leave overnight to allow any salts in the metal to “sweat” to the surface. Repeat blasting to “sweat out” all soluble salts. Perform

chloride contamination test to determine soluble salt content (should be no more than 40ppm).

3. Clean surface again with Devcon Cleaner Blend 300 to remove all traces of oil, grease, dust or other foreign substances from the grit blasting.

4. Repair surface as soon as possible to eliminate any changes or surface contaminants.