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Silicone sealing ring performance

Time:2024-05-09 Preview:1

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It has the characteristics of high temperature resistance, strong corrosion resistance, and super cleanliness.


The high temperature resistance of silicone rubber is the same as that of ordinary rubber, which is the best among the current elastomers. 26-41 silicone can be used for a long time at 250℃ and for a short time at 300℃; 246 silicone is better in heat resistance than 26-41. The physical properties of 26-41 after air heat aging at 300℃×100 hours are equivalent to those of 246 after hot air aging at 300℃×100 hours, with a hardness of 90~95 degrees. 246 maintains good elasticity after 16 hours of hot air aging at 350℃, and maintains good elasticity after 110 minutes of hot air aging at 400℃. After 110 minutes of hot air aging at 400℃, the elongation of the rubber containing spray carbon black, thermal cracking carbon black or carbon fiber increases by about 1/2~1/3, and the strength decreases by about 1/2, but still maintains good elasticity. 23-11 silicone can be used for a long time at 200℃ and for a short time at 250℃.