Sealing strip for building doors and windows refers to the joint parts used for building doors and windows components: glass and bead, glass and frame fan, frame and fan, fan and fan, etc., which can prevent leakage or invasion of internal and external media (rain, air, sand and dust, etc.), and can prevent or reduce damage caused by mechanical vibration and impact, so as to achieve sealing, sound insulation, heat insulation and shock absorption and other functions with elastic strip or rod material.

Rubber seal strip (rubber seal strip) is made of rubber for product sealing. Mainly used in automotive, machinery, doors and windows and other fields

Vulcanized rubber sealant strip

General EPDM material. Excellent overall performance, with outstanding ozone resistance, excellent weather resistance, good high temperature and low temperature resistance, outstanding chemical resistance, ability to withstand a variety of polar solutes, relative density is small. The disadvantage is that the amount of expansion in general mineral oil and lubricating oil is large, and it is generally dark products. Use temperature range -60~150 ℃. With its wide application range and excellent comprehensive performance, it has been recognized by domestic and foreign industry enterprises.

Silicone rubber sealing strip

It has outstanding high and low temperature resistance, ozone resistance and weather resistance; it has excellent hydrophobicity and proper permeability; it has unparalleled insulation performance; it can reach the hygienic level of food hygiene requirements and can meet the requirements of various colors. The disadvantage is that the mechanical strength is the worst among rubber materials and is not resistant to oil. Use temperature range -100~300 ℃. Can be applied to high temperature, cold, strong ultraviolet radiation areas and high-rise buildings.

Neoprene sealant strip (CR)

Compared with other special rubber, the individual performance is worse, but the overall performance is well balanced. It has excellent weather resistance, ozone resistance, heat aging resistance, oil and solvent resistance, good chemical resistance and excellent flame resistance, and good adhesion. The storage stability is poor, the hardening phenomenon will occur during storage, and the cold resistance is not good. The relative density is larger. Generally black products. Used in oil resistance, heat resistance, acid and alkali resistance requirements of the environment. Use temperature range -30~120 ℃.

Nitrile rubber sealing strip

The main features are oil resistance, solvent resistance, but not resistant to ketones, esters and chlorinated hydrocarbons and other media, elastic and mechanical properties are very good. The disadvantage is that it is easy to age and crack in ozone and oxidation, and its cold resistance and low temperature resistance are poor.

Thermoplastic elastomer sealant strip

It has good elasticity and excellent wear resistance, good oil resistance, wide adjustable hardness range (Shore A hardness 65~80 degrees), superior mechanical properties (tensile strength, elongation at break), excellent cold resistance and chemical interweaving corrosion resistance, high price of raw materials. Materials that can be recycled. Use temperature range -60~80 ℃. It is suitable for earthquake prone areas, areas with strong vibration such as buildings near railways or with high-power cranes, and areas with strong ultraviolet radiation.

Thermoplastic vulcanizate (TPV) sealant strip

With the flexibility and elasticity of rubber, it can be produced by plastic processing methods without vulcanization, and the waste can be recycled and reused. Is a wide range of performance materials, heat resistance, cold resistance is good, relative density is small, oil resistance, solvent resistance and neoprene similar, compression permanent deformation and wear resistance is not very good. Use temperature range -40~150 ℃. Can be applied to cold, as well as high-rise buildings.

Plasticized polyvinyl chloride (PPVC) sealant strip

The material is cheap and easy to obtain, with corrosion resistance, wear resistance, acid and alkali resistance and all kinds of chemical media, combustion resistance, high mechanical strength; The disadvantage is that the plasticizer in the system is easy to migrate, become hard and brittle with the extension of time, lose elasticity, aging resistance, poor weather resistance and low temperature performance. Generally dark products. It is suitable for occasions where the light is not strong, the temperature changes little, and the climatic conditions are not bad.

Surface Coating Material

It is coated with polyurethane, silicone, polytetrafluoroethylene and other substances on the surface of the sealing strip to replace the surface flocking of the traditional process. The coated sealing strip has good wear resistance and smoothness, especially the sealing strip coated with silicone surface coating, the surface friction coefficient is small, which is conducive to the sliding of doors and windows. Suitable for doors and windows with sliding doors and sashes. It is a substitute for traditional siliconized wool.