Silicone rubber is an environmentally friendly and widely used product. It is non-toxic, not afraid of high temperature and cold resistance. It can still be "calm" and "unchanged" at 300 ℃ and minus 90 ℃, and still has the original strength and elasticity。

Silicone rubber has good electrical insulation, oxygen aging resistance, light aging resistance, mold resistance and chemical stability.
The sealing safety protection technology of many products has certain disadvantages in specific applications. It is common to use silicone rubber (a kind of plastic material) as the material of hydraulic sealing ring. Silicone rubber sealing ring, as a kind of hydraulic sealing ring, will have some unexpected effects in all normal applications. For Dongsheng sealing belt that cannot show the actual effect of the product, what application elements will damage the silicone sealing ring?
In many cases, the multifunctional and structural types of silicone rubber products can be completely changed according to the hardness of silicone rubber products. In the application of silicone sealing ring, due to the different hardness and flexibility of the appearance under the conditions of bearing force, stretch and extrusion molding, the sealing ring will have some unavoidable phenomena, such as too large extrusion gap, too small bearing force, too high strength, and no rebound in product deformation.
Silicone sealing ring is mainly used for waterproof sealing and preservation of daily necessities such as fresh-keeping box, rice cooker, water dispenser, lunch box, heat preservation box, incubator, water cup, oven, magnetized cup and coffee pot.
The service performance of silicone sealing ring is mainly reflected in the following aspects:
1. It has excellent sealing performance and no leakage.
2. Good preservation effect, completely non-toxic and tasteless.
3. High temperature resistance, no deformation, no chemical reaction and harmful substances.
4. Long term use, not easy to fade.
5. Good tensile resistance, through special inspection and test.
6. Corona resistance, arc resistance, high and low temperature resistance, good aging resistance and high temperature resistance, meeting FDA and SGS standards.
The silicone sealing ring produced by Delong Xingye can be customized according to customer needs, with the following advantages:
Heat resistance: the heat resistance of silicone rubber sealing ring is much better than that of ordinary rubber. It can be used at 150 ° C. It can always use asexual energy change below 200 ° C. It can be used continuously for 10000 hours at 350 ° C or for a period of time. It is widely used in occasions requiring heat resistance, hot water bottle sealing ring, pressure cooker ring and heat-resistant handle. Cold resistance: the delay of ordinary rubber is negative 20 ° and negative 30 °, that is, silicone rubber can make some special silicone rubber withstand very low temperature, such as low-temperature sealing ring, at negative 60 ° and negative 70 °.