The high temperature resistance of silicone rubber sealing rings is related to the manufacturing process and vulcanizing agent, usually between 180 ° C and 250 ° C. Generally speaking, silicone rubber sealing rings can work for a long time at 180 ℃, and can withstand elasticity for several weeks or longer even slightly above 200 ℃, while they can withstand high temperatures above 300 ℃ instantly.

What are the characteristics of silicone rubber sealing rings

1. Has good sealing performance, waterproof and leak proof;
2. Good preservation effect, completely non-toxic and odorless;
3. Can be heated at high temperature without deformation and generating harmful substances;
4. After specialized inspection and testing, it was found that the silicone rubber sealing ring has good tensile resistance,
5. Long term use without fading;
6. Good resistance to corona, arc, high and low temperatures, and aging.

Precautions for using silicone rubber sealing rings

1. Do not use for a long time in temperatures below -5 ℃;
2. Do not use a cloth with oil or other solvents to wipe the silicone rubber sealing ring;
3. Do not use in flammable and explosive environments;
4. Do not place the silicone rubber sealing ring in an environment above 180 ℃ or below -55 ℃;
5. Do not use in damp environments;
6. Do not use inappropriate models or specifications of silicone rubber sealing rings;
7. Do not expose the silicone rubber sealing ring to air or water for a long time;
8. Do not cut open the silicone rubber sealing ring for use;
9. Do not mix with silicone rubber sealing rings made of other materials (especially different materials);
10. Do not use silicone rubber sealing rings in pressurized environments.

The difference between silicone rubber and silicone

1. Different properties: Silicone rubber is a highly active adsorption material, belonging to the amorphous state, while silicone is a chemical reagent with high sensitivity and can also be reused.
2. Different characteristics: Silicone rubber has good low-temperature resistance and can generally work at -55 ℃, while silicone has outstanding high-temperature resistance and can work for a long time at 180 ℃. It can withstand several weeks or longer with elasticity even slightly above 200 ℃.
3. Composition difference: Silicone rubber is a rubber whose main chain is composed of alternating silicon and oxygen atoms, with two organic groups usually connected to the silicon atoms. Silicone is a highly active adsorption material, belonging to the amorphous state, and its main component is silicon dioxide.

In addition, silicone rubber can be divided into high-temperature vulcanization type (HTV) and room temperature vulcanization type (RTV), with HTV type having a high vulcanization temperature, which facilitates the vulcanization of thick section materials or model products. The RTV type room temperature vulcanizing agent is convenient for outdoor use.