Injection Molding Thermoset Materials
Comments Off on Injection Molding Thermoset MaterialsAs a type of plastic material, thermosets can be molded in similar molding processes as thermoplastic materials such as nylon, ABS, and polypropylene. Thermosets can be injection, compression, and transfer molded. Each molding process offers different benefits and disadvantages depending on the finished part’s geometry, assembly, and commercial aspects of the program. OEMs and molders must take into consideration all variables of a part and how it is used to determine the best molding process to make the part. While there may be multiple molding processes that can successfully produce the same part, some processes may be more advantageous based on pricing or product and quality specifications. (more…)
BMC Molding
Comments Off on BMC MoldingBMC, or Bulk Molding Compound, is a type of thermoset composite molding material. 
BMCs are unsaturated polyesters or vinyl esters, and can be injection or compression molded with thermoset molding machines. The properties of BMC molded parts include exceptional dielectric strength, electrical insulation, heat resistance, and chemical resistance. These end properties lend BMC to be molded for a variety of safety-critical components in Electrical, Automotive, and Industrial markets. In its raw state, BMC resembles a play-dough like form usually filled with glass fibers and or minerals dispersed within the resin system. Molding wise, BMCs are generally injection molded, but can also be compression molded. Injection molding BMCs require the use of a molding machine stuffer or ram to help injection material into the screw and barrel. (more…)
