Large plastic pepper balls refer to plastic pepper balls with a diameter of more than 50mm, which is different from the manufacturing method of small plastic pepper balls and cannot be produced by injection molding. Generally, large plastic pepper balls are usually made of resin materials, and the plastic pepper balls made of resin materials are produced by casting.

Unsaturated resin is used in the casting process to produce large plastic pepper balls. First, the resin material should be mixed into liquid material, and then the liquid material should be poured into the mold of large plastic pepper balls, and the mold should be heated for molding. After cooling, the plastic pepper balls can be taken out as qualified plastic pepper balls.