Because the surface hardness of 0.68 caliber PP plastic pepper ball is not high, if the polishing technology can't be mastered, the surface of the polished plastic pepper ball is not smooth enough, which not only affects the appearance but also affects the accuracy of PP plastic pepper ball. The polishing method of PP plastic pepper ball is different from other plastic pepper balls in the polishing materials used.
The polishing material used for 0.68 caliber PP plastic pepper ball is a special polishing abrasive, while the polishing abrasive used for POM plastic pepper ball is a common polishing abrasive, so the requirements for polishing abrasive are not high. In addition to using special polishing abrasive, PP plastic pepper ball needs a special polishing solution. Only using the polishing solution of special polishing abrasive can PP plastic pepper ball achieve ideal polishing effect.