Rubber excipients include: sulfur yellow, zinc oxide, magnesium oxide, paraffin, light-colored cementum, dark-colored cementum, stearic acid, zinc stearate, titanium dioxide, sulfur, light calcium, terra cotta, barium sulfate, stearic acid, white grease and so on. The excipients used in rubber are mainly divided into the following categories: vulcanizing agents, vulcanizing activators, accelerators, reinforcing fillers, antioxidants, processing aids (softening plasticizers, plasticizing agents) functional auxiliaries (such as coloring agents, viscosity enhancers, flame retardants, anti-scorching agents).

Rubber accelerator is rubber vulcanization accelerator. Rubber vulcanization is mainly carried out by using sulfur, but the reaction between sulfur and rubber is very slow, so vulcanization accelerator comes into being. Vulcanization accelerator can be added to the rubber material to promote the activation of the vulcanizing agent, thereby accelerating the cross-linking reaction between the vulcanizing agent and the rubber molecules, to shorten the vulcanization time and reduce the vulcanization temperature effect.