"Bulk molding compounds"is sometimes abbreviated to "BMC".It's also named unsaturated polyester BMC. The main raw materials are short glass fiber,unsaturated polyester,fillings and other additives. Bulk Molding Compound with high strength material with excellent moldability moderate strength,good heat resistance and corrosion resistant,adapt to a variety of molding process ,can meet the requirements of various products on Performance.More and more loved by the vast numbers of users.
     "Sheet molding compounds"is sometimes abbreviated to "SMC".The main raw material are SMC special yarn, unsaturated resin, low shrinkage additive and fillings. It was in twentieth Century at the beginning of sixty's in Europe,USA and Japan developed the SMC production process at the middle of sixty's in twentieth Century,China introduced the new thechnology at the end of the 80's.As SMC has excellent electrical performance, such as corrosion resistance, light quality and engineering design easy, good flexible etc,the mechanical performance can be comparable with some metal materials,It is widely used in transportation vehicles, construction, electronics andelectrical industry.