PDM in natural rubber with sulfur, can prevent the return of vulcanization, improve the heat resistance, reduce the rubber heat generation. It can be used as a vulcanizing agent, also can be used as an additive for peroxide. PDM is used in various synthetic and rubber and rubber as vulcanizing agent and auxiliary vulcanizing agent, can significantly improve the crosslinking and heat resistance. PDM can also significantly reduce the permanent deformation of rubber compression, improve the bonding strength of rubber, metal and cord, and prevent the burning of rubber in the process of processing.