Is It Necessary To Polish Plastic Molds? What Are The Functions Of Polishing?

Plastic products are becoming increasingly widely used, resulting in higher surface quality requirements for plastic molds, often requiring mirror polishing. The polishing effect of plastic molds not only increases the aesthetics of the workpiece, but also improves the wear and corrosion resistance of the material surface. At the same time, it can make plastic products easy to demould and reduce the production injection molding cycle. So the polishing of plastic molds is a very important process in the mold manufacturing process.
For example, plastic bottles have a transparent color and a glass texture. After being polished, they can increase transparency and make the surface smoother and more delicate. The specific operation steps are to first remove the surface defects of the plastic tube blank with sandpaper, then grind it with 3M pyramid sandpaper using a dry mill, and finally use diamond paste for fine polishing. After these processes, the product will be as shiny and transparent as glass, These products are usually used for food packaging.