Silicone seal is indispensable in modern life, industry, machinery and so on a seal, it is the choice of the material and function of its stature has an important meaning, can say, the stand or fall of material selection directly influence its function properties, sealing ring material is roughly divided into: nitrile butadiene rubber sealing ring, silicon rubber sealing ring, fluorine rubber seal, epdm seals, natural rubber sealing ring, etc.
Silicone seal material, selects the high capital and does not correspond to the rubber of practical, form the finished product can't send sealing function, whether natural or synthetic rubber rubber have general properties, such as elastic recovery, resistant to twists after tightening, but each type of rubber elastomer all has the function of the common, together by the rubber formula of combination can also affect its function display, In the meantime, the primary characteristic is both high temperature resistance (higher 300℃) and low temperature resistance (lower -100℃), is now better, high temperature resistant rubber; Together with excellent electrical insulation, high stability to thermal oxidation and ozone, chemical languid.
Temperature is very important about the tension of the silicone sealing ring, no matter what kind of rubber material, at high temperature will accelerate the speed of its aging, when the temperature in the environment is higher then the deformation of the gas contraction will be greater, when the product deformation is more than 40%, the O-ring will gradually lose elastic force, forming leakage. When there is initial stress in the rubber O-ring of the equipment, these will gradually disappear with the long-term relaxation of the sealing ring and the gradual decrease in temperature.
Kemet food grade liquid silica gel has excellent high temperature resistance (can resist 300-500 degrees high temperature), good chemical corrosion resistance, low shrinkage rate (less than 0.1%), is the first choice for the production of silicone sealing ring raw materials, welcome your understanding and consultation.
