EZ~Spray Silicone 20 and 22 are sprayable silicones which cure quickly with high elongation and tear strength. Silicone 20 is also packaged for use with the EZ~Spray Jr. Cartridge System. EZ~Spray Silicone 20 and 22 are good for production casting of polyester, epoxy or urethane resins, gypsum, concrete and other materials. They are effective at making fast, cost effective vacuum bags for producing composite parts. Newly sprayed or injected bags can be removed from the mold in a matter of minutes and used immediately in production with polyester or epoxy resin systems. These production-ready silicone bags can be made, used, and re-used quickly resulting in significant time and labor savings. These Bags are also Chemically Resistant and Thermally Stable, Heat Resistant Up To 500 °F/260 °C.