Di-tert-butyl peroxide is effective to silicone rubber containing vinyl, is not easy to scorch and vulcanized rubber compression deformation is small, physical and mechanical properties are good. The disadvantage is that the vapor pressure is high, so the volatilization is also high, and it is very volatile during the storage of the rubber material. This product can be used for model products. And can be used for molding thick products and rubber materials containing carbon black. The dosage is generally 0.5~1.

Diisopropylbenzene peroxide DCP and odourless DCP, and 2.5-dimethyl - 2.5-di-tert-butyl hexane peroxide are not volatile, easy to use, low compression deformation of vulcanizate, and because they do not decompose products with carboxyl group, they are particularly stable in vulcanizate of sealed products. They are suitable for thick molded products, products bonded with metal and injection products, and are also suitable for rubber materials containing carbon black, and have a wide range of applications. When 2.5-dimethyl-2.5-di-tert-butylhexane peroxide is used, the vulcanized rubber has higher elongation. When using diisopropylbenzene peroxide, its decomposition products have a bad smell, and this smell will be stored in the product for a long time, when using 2.5-dimethyl - 2.5-di-tert-butyl hexane peroxide, this drawback can be avoided. The tear strength of the vulcanizates obtained by these two peroxides is low. Its dosage is generally 0.5~1.

The amount of peroxide should not be too large, when more than the appropriate amount will make the vulcanized rubber elongation, tear strength and other properties decreased. This downward trend is especially in the use of 2.4 - dichlorodibenzoyl peroxide, dibenzoyl peroxide.

Silicone rubber containing vinyl can be vulcanized by addition to peroxide. The vulcanizing agents used in addition vulcanization nowadays are mainly peroxides or polymers containing silyl. The Si-H group is vulcanized by addition to the vinyl group, in which a complex of platinum is usually used as a catalyst.

HTV Phenyl Silicone rubber, plz check MY 3120