By adding organic foaming agents such as nitroso compounds, azo and diazo compounds to vinyl silicone rubber, foams with uniform foaming can be prepared. In addition, there are still other types of thermal conductive silicone rubber, fluorescent silicone rubber and medical grade compound rubber sold abroad. With the continuous development of the use of silicone rubber, the number of grades of rubber compounds is increasing. Too many grades will cause confusion in production, storage and sales. Some factories have correspondingly divided multiple varieties into several typical base glues and several characteristic additives (including pigments, vulcanizing agents, etc.) for sale. Users can mix them according to certain formulas and mixing technologies to obtain the final product. This method not only makes the varieties simple and clear, but also has large production batches, stable quality, reduced costs, and also improved competitiveness.