Silicone sealing ring environmental protection, the use of a wide range of temperature, up to -60 degrees ~ long-term use at 200 degrees ambient temperature, so the use of more and more common, such as lunch boxes, cups, rice cookers, water fountains, incubators, incubators, ovens, coffee POTS and other daily supplies waterproof seal, so what are the advantages and disadvantages of silicone sealing ring, today there are Delong product experts to explain:
First, the characteristics of silicone sealing ring
1. Good sealing performance, waterproof and non-leakage, environmentally harmless;
2, can be heated at high temperature, not easy to deformation, does not produce harmful substances;
3, good tensile characteristics;
4, long-term use of the same yellow does not fade;
5, corona resistance, arc resistance, high and low temperature resistance, aging resistance, heat resistance;
6, good heat resistance, silicone sealing ring can be used at 150° C for a long time without characteristic changes, can be used continuously at 200 ° C for 10,000 hours, can also be used for a short time at 250 ° C;
7, silicone sealing ring has good cold resistance. Rubber is generally -20℃-30℃, while the silicone seal still has good elasticity at -50℃-60℃. Some special low-temperature silicone can also withstand lower temperatures.
Second, the shortcomings of the silicone sealing ring
Silicone seals are not oil resistant and are not suitable for most concentrated solvents, oils, concentrated acids and diluted sodium hydroxide.