There are three types of rubber materials for automotive sealing strips: dense rubber, sponge rubber, and hard rubber.
The hardness of hard rubber can reach Shore A95. The sealing strip uses a lot of adhesive materials that are resistant to aging, low temperature, water vapor, and chemical corrosion, especially
It is ethylene propylene diene monomer (EPDM) that is resistant to ozone aging. EPDM can be used with steel strips, steel wire woven tapes, TPE, velvet fabrics, flocking, PU coatings
Organic silicon coating and other composite materials ensure the waterproof, dustproof, sound insulation, thermal insulation, vibration reduction, wear resistance, and decorative effects of the car interior, external environment, and itself.
Under normal circumstances, EPDM sealing strips can be used stably for more than ten years. Alternatively, chloroprene rubber (CR) with good ozone resistance and aging resistance can be chosen.
Considering the process performance of commonly used rubber materials, it is sometimes necessary to choose and use rubber in combination, such as natural rubber (NR), CR, and butadiene styrene rubber (SBR)
Rubber or polyethylene (PE), EPDM, and NR rubber are used in combination to improve ozone resistance.
