... no air bubble,no impurity11 Sample for free Features of egg ring silicone:• Non-toxic and Pyrogen free raw materials ... has anti-aging, high temperature, water, etc. better Advantages for egg ring silicone:1. Excellent sealing2. odourless, tasteless and non-toxic3 ... .It has good flexible, and good stability Disadvantages for egg ring silicone:Not suitable for use with concentrated acids and ...