There are some differences between the materials used in the plastic shell pepper ball mold and the engineering plastic ball mold. Because the material used in the plastic shell pepper ball has very good fluidity, it is easy to produce wind and shrinkage, so the quality of the mold material will also affect the quality of the plastic shell pepper ball product.

The material used for the plastic shell pepper ball mold is generally S136 stainless steel. The advantage of S136 is that it is corrosion resistant and can be quenched and hardened. Because some elastic plastic materials are acidic and can be corrosive to ordinary mold steel, it is necessary to use corrosion resistant mold steel to make the plastic shell pepper ball mold. The hardness of the heat treated mold steel is above 53 degrees, which can effectively reduce the approval of plastic blank balls, It provides convenience for subsequent plastic ball grinding and polishing.