Epdm sealing strip characteristics epDM has excellent weather resistance, weather resistance refers to long-term cold resistance, hot, dry, wet ability, erosion of rain and snow water has excellent corrosion resistance, can extend the service life of rubber strip; Heat resistance to aging refers to a strong heat resistance to air aging. It can be used at 100-120℃ for a long time, and can maintain effective physical properties at 140-150℃ for a long time. It can withstand the high temperature of 230-260℃ in a short time, and can play a delay role in the sudden accident of urban buildings. Combined with the use of special formula, EPDM rubber feel similar at -50℃ to 150℃, which for the production site installation to create a high efficiency of the work performance.
Because of its excellent physical and mechanical properties, it is often used to manufacture aircraft, cars, trains, buses, ships, high and low pressure switchgear, glass curtain walls, aluminum alloy broken heat window sealing parts and diving products, high pressure steam hose, tunnels, viaduct joints and other waterproof parts and other industrial and agricultural sealing parts. The characteristics of the automobile sealing strip in the low temperature resistance test of -40℃, the sealing rubber strip is not hard, not brittle, still keep soft and good adhesion, showing excellent cold resistance. Under the high temperature of 120℃, the weather resistance of the sealing strip is still good, and the elastic performance is maintained, and the shape and function are not affected.
The choice of sealing material determines its permanent softness and elasticity, through formula adjustment, improve the softness of the sealant after drying, so that it forms a good sealing layer between sheet metal and rubber strip, butyl rubber unique high elasticity, ensure that the sealant is easy to peel from the metal sheet metal, without polluting the sheet metal. Automotive sealing strip is mainly composed of good elasticity and resistance to compression deformation, aging resistance, ozone, chemical action, a wide range of temperature range (-40℃~+120℃) EPDM rubber foam and dense composite, containing a unique metal fixture and tongue buckle, durable, easy to install
To the operator and passenger and vehicle maintenance function. There are many ways to classify automobile sealing strip products, usually in accordance with the title of the device part (parts), the variety of data, the number of composite data, working characteristics and other elements to stop classification. The title of which in accordance with the device parts (components) classification is the most commonly used way, it includes a cabin sealing strip, the wind window before and after sealing strip sealing strip, sealing strip, car doors, door door glass guide groove seal, bottom dustproof, inside and outside the door window seal, sealing side window, skylight sealing strip, sealing strip, the roof trunk (boot) sealing strip, etc.
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