mold processing

Plastic Injection Molding Finishes The most convenient way to apply surface finishes to moldings is to perform any necessary finishing on the metal mold. In this way, we can give the moldings different surface finishes such as matte, high-gloss, and various textures. Secondary finishes - applied to the finished moldings - are also an option. Matte Plastic injection molding companies like Guangdong Enineering Pastics Industries (Group)Co. Ltd. can give a consistent matte finish to plastic injection molded parts - soft grip handles, for example - by carrying out techniques like sandblasting,chemical etching and EDM on the metal mold. The surface roughness of matte moldings typically ranges between 0.40 and 18.00 Ra um. Gloss It is possible to make high-shine molded parts with a gloss finish — electronics housings, for example — using post-processing techniques like sanding, polishing, and diamond buffing. The lowest level of surface roughness for acrylic molded parts is around 0.012 Ra µm.