Effects of Engine Oils on Silicone Oil Seal Material

Methyl-Vinyl Silicone rubber, with its unique combination of low temperature flexibility and high temperature stability, finds use in many sealing applications. However, the relatively low tear strength of Silicone rubber introduces premature damage problems with Silicone seals. In addition, Silicone rubber reverts with exposure to high temperature and lubricating oils. The work reported here was performed to gain a better understanding of Silicone reversion in hot lubricant.