is silicone chemical resistant

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Chemical resistance silicones. With regards to the effects of solvents and industrial chemicals on silicone rubber, the following data has been complied: Silicones are chemically inert and are attacked by very few common materials. Among them are concentrated sulphuric acid, hydrofluoric acid and, after long term exposure, high pressure steam.

Its heat resistance is largely down to the highly stable chemical structure of the material. The backbone of siloxane is a stable formation which doesn鈥檛 allow the material to degrade in the presence of heat. With such outstanding characteristics, it鈥檚 no wonder that silicone has such a wide range of applications and uses.

Among them are concentrated sulphuric acid, hydrofluoric acid and, after long term exposure, high pressure steam. Like any elastomer, silicone has a tendency to physically absorb those materials with a solubility parameter near its own. This absorption may cause the rubber to swell and to soften slightly.

Yet, depending on the temperature, silicone may be the superior rubber in motor and machine oil applications. At temperatures below 212 degrees Fahrenheit, nitrile and chloroprene have a better oil resistance than silicone.