Poly 75-70 Liquid Rubber is a two-part, liquid polyurethane system that cures (RTV) to a gray, Shore A70 rubber. This is a pourable rubber, but it can be easily thickened with PolyFiber II Thickener for brush-on application.WARNING: This product can expose you to chemicals including Toluene diisocyanate (TDI), which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov.FOR INDUSTRIAL/PROFESSIONAL USE ONLY.TECHNICAL SPECIFICATIONS Mix Ratio by Weight: 1A:1B Shore Hardness: A70 Pour Time: 40 min. Demold Time: 16 hr. Cured Color: Gray Mixed Viscosity: 3,000 cP Specific Volume: 27 in³/lb Specific Gravity: 1.05 Elongation: 724 % Tensile Strength: 938 psi Die C Tear Strength: 299 pli Notes: The color of polyurethane Part Bs may change in color from batch to batch or may darken with age, but product performance is not affected. Kit Components Poly 75-70 Liquid Rubber Components 4-lb kit includes 2 lb of Poly-75 Series Part A (~1 quart)2 lb of Poly-75-70 Part B (~1 quart) 16-lb kit includes: 8 lb of Poly-75 Series Part A (~1 gallon)8 lb of Poly-75-70 Part B (~1 gallon) 80-lb kit includes: 40 lb of Poly-75 Series Part A (~5 gallons)40 lb of Poly-75-70 Part B (~5 gallons) LOOKING FOR LARGER SIZES (E.G., DRUM KITS)? Contact us at 877-935-8906 or [email protected] for help.