A Brief History Of Bulk Molding Compounds

BMC (DMC) material is the abbreviation of Bulk (Dough) molding compounds, that is, bulk molding compounds. It is often called unsaturated polyester mass molding compound in China. Its main raw material is GF (chopped glass fiber), UP (unsaturated resin), MD (filler) and various additives are fully mixed into a pellet prepreg. DMC materials were first applied in the former West Germany and the United Kingdom in the 60s of the twentieth century, and then developed greatly in the United States and Japan in the 70s and 80s respectively. Because BMC bulk molding compound has excellent electrical properties, mechanical properties, heat resistance, chemical corrosion resistance, and adapts to various molding processes, it can meet the performance requirements of various products, so it is more and more loved by the majority of users.

Depending on the end application, the compounds are formulated for precise dimensional control, good flame retardancy and tracking resistance, high dielectric strength, corrosion and stain resistance, excellent mechanical properties, low shrinkage and stable color. The flow characteristics and insulating and flame retardant properties of bulk molding compounds (BMCs) make them ideal for a wide range of applications that require precise detail and dimensions. The material is available in 75 colors and can withstand powder spraying or water-based paints.