SMC, or sheet molding compound, is made of unsaturated polyester resin, glass rovings and other compounding materials by a special equipment forming unit, after thickening, cutting, into the metal mold by high temperature and high pressure curing and made.
SMC and its molded products as the emerging glass fiber reinforced plastics, commonly known as FRP, its processing methods can be divided into: hand and injection molding, spray molding, pultrusion molding, winding molding, resin transfer molding, molding and other processing methods. SMC and its molded products have the following characteristics: Light Weight, high strength, accurate size, batch quality consistency, the product can reach zero shrinkage. With a level of surface, mechanization, high degree of automation, suitable for surface quality requirements, large output, uniform thickness products.