POLYBAC #303 - POLYGEM, Inc.

3. PRODUCT DESCRIPTION
POLYBAC #303 Wear Surf AR is a 100% solids epoxy, non-sag resurfacing material. Specially formulated resins and hardeners combined with a network of large, medium and small ceramic beads produce an extremely wear resistant trowelable material.

Uses
POLYBAC #303 Wear SURFACE AR will conform to irregular surfaces and can be applied horizontally, vertically and overhead. Curing is achieved at room temperature or with the application of heat. Common applications include rod and ball mills, soil and rock box outlets, slurry line elbows, feed chutes, tan blades, pump liners and impellers.

4. APPLICATION INSTRUCTIONS

Sandblast or scarify surface to eliminate all surface scale, rust and unclean matter. Wipe surface with clean cloth soaked with POLYBAC #20 Solvent. If possible, warm the substrate to 120° F.
If sandblasting is not available, wire brush, disc grinder or a coarse sandpaper may be used. Clean with a soil free cloth, soaked with #20 Solvent.
The substrate must be free from all contamination such as oil, grease, rust, mill scale, water, release agents or soil. Mix 2 parts A (Resin) to 1 part B (Hardener) on a separate board until uniform in color.
Apply a thin layer of POLYBAC #303 WEAR SURF AR and rub into the surface, then proceed to build up to desired thickness. Layers should not exceed ¼” at one time to insure proper cure.
The cure can be accelerated by waving a torch over the surface for about thirty minutes or heat Part A (Resin) to 100° F before mixing. This process will accelerate the cure but also shorten the working life. Material is sensitive to varying temperatures.
A smooth slick surface can be accomplished by dipping your trowel into #20 Solvent then smoothing over the already applied POLYBAC #303 WEAR SURF AR.
Do not apply below 50° F without heating the material and substrate to temperatures above 80° F. Clean tools with #20 Solvent and clean skin or clothes with soapy water.

Consult Polygem for additional technical instructions

Packaging
1.5 gallon kit

5.TECHNICAL DATA

Performance Properties

Test Test Method Results

Tensile Strength ASTM D-638 5,500 psi

Compressive Strength ASTM D-695 14,740 psi

Impact Strength 76

Heat Deflection Temperature ASTM D-648 153° F

Maximum Operating Temperature 250° F

Lap Shear Strength ASTM D-1002 2,100 psi

Working Life @ 77° F 30 minutes

Specific Gravity (as cast) SPI-TRF 369 1.7

Cure @ 77° F 6-8 hours

Ratio 2:1 by weight or volume

Weight per Kit (net) 27 lbs (12.24 kg)

Coverage 10.0 sq. ft. at ¼” thick

Polygem, Inc. warrants its products to be free of manufacturing defects and that, at the time and place of shipment, our material will meet current physical properties when applied within Polygem’s directions and tested in accordance with ASTM and Polygem standards. Polygem, Inc’s liability is limited to replacement of material found defective. As Polygem, Inc. has no control over the use to which others may put its products, it is recommended that the product be tested to determine if suitable for a specific application and/or our information is valid in a particular circumstance. Responsibility remains with the architect or engineer, contractor and owner for the design, application and proper installation of each product. Nothing contained herein shall be construed to be a recommendation to use or as a license to operate under or to infringe any existing patents.

Data sheets are subject to change without notice, for latest revision check our website at www.polygem.com