The BMC mold material is the bulk molding compound. The main raw material is a dough-like prepreg that is fully mixed with GF, UP, MD, and various additives. BMC materials were first used in the former West Germany and the United Kingdom in the 1960s, and then developed in the United States and Japan in the 1970s and 1980s, respectively. Because BMC bulk molding compound has excellent electrical properties, mechanical properties, heat resistance, chemical resistance, and adapts to various molding processes, it can meet the performance requirements of various products, so it is more and more popular with users. favorite.
The bulk molding compound is a thermosetting injection mold in which various inert fillers, fiber reinforcements, catalysts, stabilizers, and pigments are mixed to form an adhesive "putty-like" composite material for compression molding or injection molding. The bulk molding compound is highly filled and reinforced by short fibers. The glass fiber reinforced material accounts for 10% to 30%, and the length is usually between 1/32 inch and 1/2 inch.
According to different final application fields, the formulated composite material can accurately control the size, has good flame retardancy and tracking resistance, has high dielectric strength, corrosion resistance and stain resistance, excellent mechanical properties, low shrinkage, and the color is stable. Bulk molding compound (BMC) has excellent flow characteristics, insulation, and flame retardancy, and is very suitable for various applications that require precise details and dimensions. The material is available in 75 colors, which can withstand powder spraying or water-based paint.