POLYBAC #300 - POLYGEM, Inc.

3. PRODUCT DESCRIPTION
POLYBAC® #300 Crusher Backing is a 100% solids epoxy resin system. It is a safe, convenient and economical way to back metal surfaces in all types of crushers and grinding mills. No special equipment or training is required. It is specially formulated to reduce hard pack settling over an extended period of time.

Safe- Eliminates the need for melting and handling of hazardous molten metal. Non-flammable material provides safe working conditions for employees.

Convenient - Ready to use. Just mix and pour. POLYBAC #300 is mixed in its own plastic container to a uniform color and is ready to use. Smooth consistency allows for easy pouring.

Economical - Insures complete backing over 100% of a surface by eliminating gaps that weaken and shorten liner life in crushers and mills. Provides positive backing upon cure without expensive heating of metals. Unmixed material stays “ready to use” in storage until needed. POLYBAC #300 is the low cost way to back crushers.

4. APPLICATION INSTRUCTIONS

Prepare crushers or mills as you would for pouring metallic backing.
Maintain temperatures of POLYBAC #300 between 60° - 85° F prior to pouring.
Remove lid, plastic bottle and cardboard insert, exposing the resin.
Pour contents of plastic bottle (Hardener) into resin and mix with low speed drill.
Mix thoroughly with up and down motion. To insure proper ratio, scrape sides with mixing tool. Mix for 2 minutes or until uniform in color. Do not exceed mixing over 3 minutes.
Pour contents immediately following mixing procedure.

Consult Polygem for additional technical instructions

Packaging
2 and 5 gallon kits.

5.TECHNICAL DATA

Performance Properties

Test Test Method Results

Tensile Strength ASTM D-638 5,870 psi

Compressive Strength ASTM D-695 15,500 psi

Impact Strength 52

Maximum Operating Temperature 170° F

Working Life @ 77° F 14 minutes

Cure @ 77° F 8 hours

Shrinkage .0015 in/inch

Ratio 13.7:1 by weight

Weight per Kit (net) 2 gallon 22 lbs (10 kg)

Weight per Kit (net) 5 gallon 55 lbs (25 kg)

Coverage 2 gallon 340 cu. in./kit

Coverage 5 gallon 850 Cu. in./kit

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