Topic: tpr erasers

The Production Method Of TPR Erasers 1. Oil processing plants ship synthetic rubber in powder or liquid form to rubber manufacturing plants. If natural rubber is to be used, it is shipped in sturdy chunks, and workers must first crush and dissolve it. 2、Mix the rubber with ground pumice powder (which makes the rubber slightly coarser and harder), iron oxide (which turns the rubber pink), vegetable oil, sulfur, and other substances. ...