1 Excellent weather resistance and aging resistance. The bond energy of silicone rubber is higher than the ultraviolet radiation energy (370KJ / mol), so the silicone rubber will not break the main chain under long-term exposure to sunlight and ozone, and its performance will not be significantly reduced. So that the silicone rubber seal has a longer service life.
2 Excellent high and low temperature resistance. Silicone rubber can be used for a long time in the temperature environment of -60 ～ 200 ℃. The wide operating temperature range allows the silicone rubber weatherstrip to maintain good performance in cold regions at high latitudes and hot regions at low latitudes.
3 Good resilience. The Si—O bond in the silicone rubber has low rotation energy and the siloxane has a spiral chain structure. Therefore, the silicone rubber has good resilience, so that the silicone rubber sealing strip can be restored to its original shape after being deformed by external forces to ensure its seal. performance.
4 Safety and environmental protection. Silicone rubber is physiologically inert, non-toxic and tasteless, and does not release volatile gases during use. It is widely used in the food and pharmaceutical industries. In the US FDA certification, so far, silicone rubber is the most harmless material of all new environmental protection materials.
5 Selective breathability. According to research, the oxygen transmission rate of silicone rubber is 25 times that of natural rubber and 428.6 times that of butyl rubber. Silicon rubber has a lower permeability to harmful gases such as sulfur dioxide than other rubbers. This property allows the room to maintain fresh air, which is most suitable for people's lives.
6 The surface is smooth, and the color is diverse. The surface of the silicone rubber is hydrophobic and smooth, and can be adjusted in various colors, which has a good decorative effect.