PPA hollow plastic pepper balls are often used in the chemical field as sealing balls for chemical liquid valves. The surface of PPA hollow plastic pepper balls is usually sealed by mirror effect, but there are also a few occasions where PPA hollow plastic pepper balls with frosted surface effect are used. How to process the frosted surface of PPA hollow plastic pepper balls? Here is a detailed description of the manufacturing process of PPA hollow plastic pepper balls:The manufacturing process of PPA hollow plastic pepper ball is not much different from that of PA plastic hollow pepper ball, and they all need the same mold and tools to process. The difference from PA plastic hollow pepper ball is the different processing temperature. PPA plastic is a high-temperature plastic, and the processing temperature is above 280 degrees, while PA plastic is above 230 degrees, so processing PPA hollow plastic pepper ball needs a higher temperature. PPA hollow plastic pepper balls need special abrasives to make the frosted surface. Generally, the abrasives are made of resin and special silicon carbide, which is also used to make large grinding wheels. The mesh number of silicon carbide should be customized according to the frosting effect of PPA hollow plastic pepper balls. The normal mesh number is about 120 mesh, but some special customers have a high degree of frosting on the surface of PPA hollow plastic pepper balls. It is necessary to use several kinds of silicon carbide materials to make abrasives. After getting the abrasives, put the ground PPA hollow plastic pepper balls and abrasives into a polishing machine for polishing, and take out the PPA hollow plastic pepper balls a few hours later. After dehydration, the finished PPA hollow plastic pepper ball is