These seals include liquid polymers that can be vulcanized to form an elastic state. They have the ability to withstand repeated seam deformation. The service life of liquid elastomer seals is generally 15-20 years. This type of sealing strip has high adhesion and shear strength, and has good softness at room temperature. The disadvantages are the high price, the primer is usually required, the two-component sealing strip is inconvenient to mix on site, and it is sensitive to temperature and humidity during vulcanization.
Introduction to hot melt sealing strip: Hot melt sealing strip is also called hot construction type sealing strip, which refers to the sealing strip based on the blend of elastomer and thermoplastic resin. The hot-melt sealing strip can be formulated into a liquid elastic sealing strip , but it is superior to the liquid elastomer sealing strip in that it does not require the addition of a vulcanizing agent. The manufacturing method uses an extrusion continuous vulcanization method, an extrusion vulcanization tank vulcanization method, or a compression vulcanization method.
Silicone rubber seals have been applied to various industries such as automobiles, doors and windows, cabinets, refrigerators, containers and so on. According to the requirements of different industries, unique automotive seals, mechanical seals, door and window seals have been developed. Used in electronic and electrical, lighting, pharmaceutical, chemical, mechanical equipment, textile, chemical fiber, automotive and other sealing industries.
Sealing strip characteristics:
1. Silicone material has good sealing performance, high temperature and weather resistance, anti-aging and impact resistance, shockproof and waterproof, can fit various smooth surface materials, can be self-adhesive with backing tape, better sealing, high temperature resistant rubber will not fall off for a long time On the door and door frame, side windows, front and rear windshield, engine cover and trunk cover, it plays the role of waterproof, dustproof, sound insulation, temperature insulation, shock absorption, decoration.
2. It is also possible to produce rubber hinges for installing luggage compartment doors of passenger cars. The unique formula design makes EPDM rubber seals have superior anti-aging, high and low temperature resistance and chemical resistance, good elasticity and compression resistance, and will not crack or deform in long-term use. It can maintain its original high sealing performance between 50 degrees and 120 degrees.
EPDM rubber sealing strip is a copolymer of ethylene, propylene and a small amount of a third monomer non-conjugated diene. The international name is Ethyiene Propyene Diene Methyiene for short. EPDM rubber seal has excellent UV resistance, weather resistance, heat aging resistance, low temperature resistance, ozone resistance, chemical resistance, water resistance, good electrical insulation and elasticity, and other physical machinery performance. These advantages are irreplaceable by other materials such as PVC.
EPDM rubber sealing strip is formed by microwave vulcanization at one time. The surface is smooth and beautiful, has good elasticity and resistance to compression deformation, weather resistance, ozone resistance, chemical resistance and a wide range of use temperature (-50 ℃ ~ + 150 ℃) and other excellent properties, has been widely used in automotive doors, windows, curtain walls and other manufacturing industries. For products with different shapes, different materials, or requirements for cold resistance, heat resistance, foaming, solid body, and special properties, it can meet the needs of design and use.
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