GRP-333 is an unsaturated polyester resin based on orthophthalic acid with medium viscosity and reactivity. This resin is recommended for glass reinforced products by hand lay-up, press moulding, filament winding etc.
GRP-300:
GRP-300 is high chemical resistant unsaturated polyester resin based on isophthalic acid with medium viscosity and high reactivity. This resin is recommended for centrifugal casting, bigger diameter pipes, pipe fittings and tanks where chemical resistance is required.