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What is the classification of flame-retardant sealing strips by material?

There are three types of rubber materials for automobile sealing materials: dense rubber, sponge rubber, and hard rubber.The hardness of hard rubber can reach show A95.Sealing adhesives mostly use ternary ethylene (EPDM) that is resistant to aging, low temperature, water, and chemical corrosion, especially ternary ethylene (EPDM) that is resistant to ozone aging.EPDM is combined with steel strips, steel wire braided belts, TPE, flannel, molds, PU coatings, silicone coatings, etc. to ensure that the interior and exterior of the car and its own waterproof, dustproof, soundproof, heat insulation, shock absorption, anti-wear and decorative effects.Generally speaking, EPDM seals can be used stably for more than 10 years.You can also choose ozone-resistant and anti-aging neoprene (CR).Taking into account the process properties of commonly used rubbers, it is sometimes necessary to combine natural rubber (NR) and CR and styrene-butadiene rubber (SBR) with polyethylene (PE), EPDM and NR rubber to improve ozone resistance.With the development and maturity of thermoplastic elastomer (TPE) technology, the application field continues to expand.Among the raw materials for the manufacture of sealing rods, ternary ethylene rubber, the main raw material previously used, is also constantly being updated and developed.With good physical properties and good processing properties, the new EPDM can control the long-chain branching of molecules, thereby improving vulcanization properties, extrusion speed and product yield.New thermoplastic elastomers, such as TPO and TPV, are also increasingly used in automotive sealing.These materials have both the excellent engineering properties of elastomers and the excellent characteristics of plastics, and are easy to process and recycle. These materials are gradually replacing EPDM products.

What is the classification of flame-retardant sealing strips by type?

D-type seals are divided into large D-type, small D-type seals, P-type seals and E-type seals.

Automobile anti-soundproof bumpers are divided into 3M bags of plastic small D-type seals, 3M bags of plastic large D-type seals, and 3M bags of plastic large P-type seals.

However, in recent years, with the development of the automotive industry, the market share/market share of domestic Wonder double-sided adhesive has become larger and larger, overcoming the shortcomings of the cold resistance of 3M adhesive construction, the construction is simple, sticky and durable, and the flame-retardant sealing strip overcomes the impact of the previous temperature on the life of the sealing field!