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Rail transit sealing strip has outstanding resistance to high and low temperature properties, resistance to ozone and weather resistance. Has excellent hydrophobic and appropriate permeability; Has the incomparable insulation performance; Can meet the food hygiene requirements of health level, can satisfy the requirement of all sorts of color. Faults is worst in mechanical strength in the rubber, oil resistant. Using the temperature range 100 ~ + 300 ℃. Can be applied to high temperature, strong cold, ultraviolet radiation area and the high-level architecture.
Compared with other special rubber, individual performance is poor, but the total balance of good performance. Have excellent weather resistance, ozone resistance, thermal aging and oil resistance, solvent resistance, good chemical resistance and excellent flame resistance, good adhesive properties. Storage stability is poor, hard phenomenon will occur in the process of storage, cold resistance is not good. Relative density is bigger. As a general rule, be black products. Used in oil resistant, heat resistant, resistant to environment. Use temperature range - 30 ~ + 120 ℃.
Main characteristic is oil resistant, solvent resistance, but not resistant to ketones, esters and chlorinated hydrocarbon medium, the elastic and mechanical performance is very good. Defect is the ozone oxidation and easy aging crack, cold resistance, low temperature resistance is poor. Use temperature range - 30 ~ + 120 ℃
Has good flexibility and excellent abrasion resistance, good oil resistance, wide range of hardness can be adjusted (shaw A hardness 65 ~ 65 degrees), superior mechanical properties (tensile strength, tensile elongation), excellent cold resistance and resistance to chemical corrosion performance, the higher the price of raw materials. As can be recycled material. Rail transit sealing strip can meet the requirements of all sorts of color. Use temperature range - 60 ~ + 80 ℃. Suitable for near earthquakes, railway or with the area of intense shaking, such as the workshop of high-power crane and ultraviolet irradiation strongly region.