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There are many advantages of silicone gaskets. The first is that its heat resistance can work in a very low temperature environment, the lowest can reach minus 100 degrees, and it has good resistance to oxidation and ozone in the air. The structure makes the silicone seal ring have good gas permeability and good gas selectivity. Because it is non-toxic and tasteless, it is used in many food and medical industries.
Outstanding insulation performance is another advantage, but if the carbon black, nickel powder, aluminum powder, etc. are appropriately added to the material, it can increase its conductivity. Silicone seals also have hygroscopic properties, which have the function of absorbing and isolating the moisture in the environment, but have poor resistance to water vapor. Said the advantages of so many silicone seals. But silicone is not a panacea. The disadvantages are also obvious, so in which environments is it not suitable to use silicone gaskets?
1. First of all, it is not suitable to use silicone seals in a working environment where the working pressure exceeds 50 pounds;
2. Although silicone rubber is compatible with most oils, compounds, and solvents, and has good acid and alkali resistance, it has little resistance to alkanes and aromatic oils.
3. Also, it is not recommended to use silicone gaskets in most concentrated solvents, oils, concentrated acids and diluted fire alkali solutions.
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