Rubber Silicone

Silicone vs. rubber selection
High temperature resistance: Silicone (-60℃~250℃) is better than ordinary rubber (generally <100℃).
Chemical stability: Silicone is resistant to aging, acid and alkali, and rubber needs to be selected according to type (such as nitrile rubber is oil-resistant).
Cost: Silicone is more expensive, and rubber (especially natural rubber) is cheaper