2016年8月29日星期一

Category of Automotive sealing rubber

According to the location and use classification
(1) window glass seal; (2) door seals; (3) trim, moldings; (4) Other sealing strip (trunk lid seal, hood seal, water seal, the emergency door seal bars, etc.).
According to material classification
Automotive sealing rubber

Automotive sealing rubber material dense rubber, sponge rubber and hard rubber three. Hard rubber hardness up to Shore A95. Rubber sealing strips used more aging resistance, low temperature, water gas, chemical resistance, particularly resistance to ozone aging of ethylene propylene diene monomer (EPDM). With EPDM strip, wire braid, TPE, velvet, flocking, PU coating, silicone coating, and other composite, ensure the car interior and the outside world and its own water, dust, noise, heat, vibration, anti - grinding and decoration. Under normal circumstances EPDM seals can be stabilized using more than ten years. You can also choose to have good ozone resistance and good anti-aging properties of chloroprene rubber (CR). Taking into account the technological properties of commonly used plastic material, and sometimes also need to use rubber such as natural rubber (NR) with CR and styrene-butadiene rubber (SBR) and treated with three kinds of rubber or polyethylene (PE), EPDM and NR Rubber and type to use improved ozone resistance. With the continuous development of thermoplastic elastomer (TPE) technology and mature, expanding applications. Raw materials in the manufacture of seals, the main raw material used in the past EPDM are constantly updated and developed. It has excellent physical properties, and good workability of the new EPDM to control the molecular long chain branching, to make it better curing performance, and increase production speed and extrusion products. New thermoplastic elastomers such as TPO and TPV and other materials in automotive sealing strip more and more applications. These materials not only has excellent engineering properties of elastomers, but also has excellent properties of the plastic, convenient processing, recyclable and reuse of these materials is gradually replacing EPDM products.

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