The temperature resistance range of ordinary silicone is generally between -40 ℃ and 160 ℃. Such ordinary silicone is commonly used as silicone accessories and silicone gifts, and the ambient temperature is usually room temperature, so it does not require high temperature resistance properties.
However, silicone products such as silicone baking utensils and silicone kitchenware, which are often used in high-temperature environments, need to be made of food grade silicone because the temperature resistance range of food grade silicone is around -40 ℃~250 ℃, and generally baking and cooking do not reach 240 ℃. Therefore, baking tools and silicone kitchenware made of food grade silicone are very safe.
Special high-temperature resistant silicone can reach 350 degrees. High temperature resistant silicone is mainly made of phenyl silicone rubber and fumed silica as raw materials, supplemented by high temperature resistant additives, making the product resistant to high temperatures up to 300-350 ℃ without secondary vulcanization. It has high tear strength, good resilience, is not prone to yellowing, and has a good feel;
Not easily oxidized or degraded in ozone and radiation environments, with good chemical stability; It has excellent hydrophobicity, moisture resistance, seismic resistance, and physiological inertness. High temperature resistant silicone product usage: This product can be molded and extruded, used for manufacturing high-temperature resistant silicone products such as suction cups, electronic device trays, miscellaneous parts, pipes, oven sealing strips, and high-temperature protective sleeves.
Advantages of high-temperature resistant silicone:
1. Resistance to high and low temperature impacts
2. Rapid vulcanization
3. Extremely low odor, released harmless to the human body during vulcanization
4. Bonding with various substrates without the use of primer
5. Excellent heat resistance, ozone resistance, and chemical erosion resistance
6. Excellent electrical insulation performance
Regarding silicone rubber, please check the details:
https://www.siliconerubbers.net/product-general-grade-htv-silicone-rubber.html 
