Polytek Polyurethane Liquid Plastics: Fast-Setting, Low-Viscosity Polyurethane Plastics EasyFlo Series products are easy-to-use, mercury-free polyurethane resins with simple, 1A:1B mix ratios by volume. These super low-viscosity liquids make for perfect detail penetration and bubble-free castings without the need for vacuum or pressure techniques. Rapid demold times make EasyFlo products ideal for high-volume, fast-cast applications. This series includes options that can be poured, rotocast and sprayed. EasyFlo plastics are the fastest setting and lowest viscosity resins in Polytek®’s polyurethane resin line-up, are very versatile and work well for countless commercial, industrial, hobby, craft, prop and display projects. EasyFlo plastics can be cast in PlatSil® and TinSil® silicone molds without any release agent and can be cast in polyurethane rubber molds and latex molds with the proper release agent (e.g., Pol-Ease® 2300 Release Agent). EasyFlo Series Technical Bulletin Physical Properties Bulletin EasyFlo 60 Liquid Plastic EasyFlo 60 Liquid Plastic is a two-part, liquid polyurethane resin that cures (RTV) to a white, Shore D65 plastic. This product has a simple 1A:1B mix ratio by volume and a fast demold time of 15 to 30 minutes. EasyFlo 60 is a super low-viscosity, pourable plastic, but it can be easily thickened with PolyFiber II Thickener for brush-on application. For spray application, consider EasyFlo Spray FR. Available in 3.8 lb. Kits, 15.2 lb. Kits, and 76 lb. Kits. Example: 3.8-lb kits include: 2 lb of EasyFlo 60 Part A (~1 quart) 1.8 lb of EasyFlo 60 Part B (~1 quart). 15.2-lb kit includes: 8 lb of EasyFlo 60 Part A (~1 gallon) 7.2 lb of EasyFlo 60 Part B (~1 gallon). 76-lb kit includes: 40 lb of EasyFlo 60 Part A (~5 gallons) 36 lb of EasyFlo 60 Part B (~5 gallons) Mix Ratio Shore Hardness Pot Life Demold Time Cured Color Mixed Viscosity Specific Gravity Specific Volume Maximum Exotherm Shrinkage Upon Cure 1A:1B by volume, 100A:90B by weight D65 2 – 2.5 min. 15 – 30 min. White 60 cP 1.03 26.9 in³/lb 230°F (1-lb mass) 0.0041 inch/inch 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. For additional physical property specifications, refer to the Physical Properties Bulletin. Safety Data Sheet - Part A Safety Data Sheet - Part B EasyFlo 90 Liquid Plastic EasyFlo 90 Liquid Plastic is a two-part, liquid polyurethane resin that cures (RTV) to white, Shore D70 plastic. This product has a simple 1A:1B mix ratio by volume or (100A:90B by weight) and a demold time of 1 to 2 hours. EasyFlo 90 is a super low-viscosity, pourable plastic, but it can be easily thickened with PolyFiber II Thickener for brush-on application. For spray application, consider EasyFlo Spray FR. WARNING: This product can expose you to chemicals including Di-isodecyl phthalate (DIDP), which is known to the State of California to cause reproductive harm. For more information, go to www.P65Warnings.ca.gov. Mix Ratio Shore Hardness Pot Life Demold Time Cured Color Mixed Viscosity Specific Gravity Specific Volume Maximum Exotherm Shrinkage Upon Cure 1A:1B by volume, 100A:90B by weight D70 5 min. 1-2 hr. White 200 cP 1.06 26.1 in³/lb -
