ORCHEM™ – 921 is a medium viscosity,medium reactive, non pre accelerated, non thixotropic, moderate heat deflection temperature, unsaturated polyester Halogenated Fire Retardant resin based on Isophthalic acid/NPG resin. It is intended to use mainly in Hand Lay Up Processes. It’s moderate cure profile, high filler loading and moderate exothermal development exhibits a non cracking tendency and has excellent physical properties. It is used in Bulding & Constructions, Water resistant, Defence and other general purpose applications. This resin passes UL-94-V0 & IS 6746-1994.