High temperature vulcanized silicone rubber is usually vulcanized with Ammonium persulfate/Potassium persulfate vulcanization system. The following are commonly used curing systems for high-temperature vulcanized silicone rubber:

Ammonium persulfate curing system:
Ammonium persulfate (APS) is a common oxidant, which can be used for high-temperature vulcanization of silicone rubber. In this curing system, Ammonium persulfate, as a curing agent, decomposes at high temperature to produce free radicals and initiate the curing reaction. In general, an active substance (such as formic acid) needs to be added as a promoter to accelerate the vulcanization reaction.

Potassium persulfate curing system:
Potassium persulfate (KPS) is also one of the commonly used vulcanizing agents. Similar to the Ammonium persulfate system, Potassium persulfate decomposes at high temperature to produce free radicals, which are used to initiate the vulcanization reaction. In addition, accelerators are often added to accelerate the vulcanization reaction.

During the vulcanization process, some sulfur aids and accelerators are usually added to optimize the vulcanization effect and speed. The specific conditions for vulcanization (temperature, time, etc.) will vary depending on the specific silicone rubber material and application requirements. The vulcanization process should be carried out in appropriate vulcanization equipment (such as a vulcanization furnace) to control temperature and time, ensuring that the vulcanization reaction can proceed effectively.

It should be noted that the specific curing system and conditions may vary depending on factors such as silicone rubber formula, application requirements, and manufacturing process. In practical applications, appropriate vulcanization systems and operating conditions should be selected based on the vulcanization requirements of silicone rubber materials and the recommendations provided by the manufacturer.