Poly-Optic® 1420 Clear Casting Resin is a two-part, liquid polyurethane resin that cures (RTV) to a water-clear, Shore D85 plastic. It cures to a tough, impact and heat-resistant plastic that can be polished and machined and is used extensively in prototyping applications. Heat cure (150°F - 180°F) is required to achieve optimum physical properties. When cured at room temperature, the result is a brittle, glass-like casting.Vacuum and/or pressure casting techniques are recommended for this product. Cure inhibition can occur when casting this resin in tin-cured silicone rubber molds – use a platinum-cured silicone rubber mold if working with silicones.WARNING: This product contains Phenylmercuric acetate (CAS 62-38-4), a chemical known to the State of California to cause reproductive harm. For more information, go to www.P65Warnings.ca.gov. FOR INDUSTRIAL/PROFESSIONAL USE ONLY.TECHNICAL SPECIFICATIONS Mix Ratio by Volume: 1A:1B Mix Ratio by Weight: 100A:90B Shore Hardness: D65 Pot Life: 2-2.5 min. Demold Time: 15-30 min. Cured Color: White Mixed Viscosity: 60 cP Specific Volume: 26.9 in³/lb Specific Gravity: 1.03 Linear Shrinkage: 0.0041 in/in Elongation: 13.9 % Tensile Strength: 2,936 psi Elastic Modulus: 72,627 psi Flexural Modulus: 93,112 psi Flexural Strength, 5% Strain: 3,915 psi Heat Deflection Temp.: 149°F Max Exotherm: 230°F Restriction of Hazardous Substances (RoHS) Compliant: Yes 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-Optic 1420 Components 120-lb kit includes 80 lb of Poly-Optic 1420 Part A (~10 gals)40 lb of Poly-Optic 1420 Part B (~5 gals) LOOKING FOR LARGER SIZES (E.G., DRUM KITS)? Contact us at 877-935-8906 or [email protected] for help.
