The toxicity of silicone sealing rings after high temperature has always been a concern for people. The following is information about silicone sealing rings:

1. Production raw materials for silicone sealing rings:
Silicone is its main component, which is a material with stable chemical properties and does not contain toxic substances. Silicone itself has excellent properties such as good temperature resistance, high electrical insulation, good tear strength, excellent elongation, and is non-toxic and harmless.
2. Temperature resistance:
The silicone sealing ring can be used between 30 ℃ and 150 ℃ without producing toxic substances and harmful gases.
3. Source of odor:
The occurrence of odor during use may be due to some manufacturers adding inferior vulcanizing agents during the silicone vulcanization process in order to save costs. These odors are not harmful gases, but rather the volatility of inferior vulcanizing agents.

Summary:
The silicone sealing ring itself is a safe material and does not contain toxic substances. The odor may come from inferior vulcanizing agents, but it does not produce toxic and harmful gases. To ensure product quality, it is recommended to choose silicone sealing rings produced by reputable manufacturers and carefully read the product manual before use to ensure correct use.