Industrial Purpose Unsaturated Polyester Resin is prepared by condensation reaction between acids like isophthalic acid, phthalic anhydride, maleic anhydride and glycols like propylene glycol, di-ethylene glycol, mono-ethylene glycol, at 210 to 230 degree C temperature range, in stainless steel reactor under nitrogen atmosphere. Unsaturated Polyester Resin is most suitable for reinforced plastic applications. The Unsaturated Polyester Resin is ideal for general purpose applications. Industrial Purpose Unsaturated Polyester Resin comes in different grades and specifications to cater to specific requirement.