Both silicone O-rings and rubber O-rings are common sealing materials, each with its own advantages in different application environments and requirements. The choice between them depends on specific operating conditions and requirements. Below is a comparison of their key features:

1. Silicone O-rings

•  High-Temperature Resistance: Silicone O-rings exhibit excellent high-temperature resistance, maintaining elasticity and sealing performance at relatively high temperatures.

•  Chemical Resistance: Silicone has good tolerance to certain chemicals and is not easily corroded.

•  Oxidative Stability: Silicone remains stable over long periods and is resistant to oxidation.

•  Insulating Properties: Silicone is an excellent insulating material, making it suitable for electrical equipment.

•  Wide Hardness Range: Silicone O-rings can be manufactured with varying hardness levels to adapt to different application scenarios.

2. Rubber O-rings

•  Abrasion Resistance: Rubber O-rings have good wear resistance, making them suitable for mechanical sealing applications.

•  Elasticity: Rubber O-rings offer superior elasticity, providing effective sealing performance even under relatively low pressure.

•  Lower Cost: Generally, the manufacturing cost of rubber O-rings is relatively lower.

•  Strong Selectivity: There are various types of rubber O-rings (e.g., nitrile rubber, fluororubber), allowing selection of appropriate materials based on specific needs.

When selecting an O-ring, factors such as the temperature, pressure, and chemical exposure of the operating environment, as well as requirements for elasticity and durability, should be considered. A comprehensive evaluation of these factors will help determine whether silicone O-rings or rubber O-rings are more suitable for the application.