Raw materials for rubber hose

(1)EPDM sealing strip

Comprehensive performance is excellent, with ozone resistance, weather resistance, high temperature, low temperature performance, chemical resistance, resistance to a variety of solutes, relative density is small. The disadvantage is that in general mineral oil and lubricating oil in the expansion of large, generally dark-colored products. Use of temperature range -60 ~ +150 ℃. It can be used in high temperature, cold, coastal, ultraviolet irradiation strong area as well as medium and high rise buildings. With its wide range of application and excellent comprehensive performance, it has been recognized by the domestic and foreign doors and windows industry.

(2)Silicone rubber sealing tape

Outstanding high and low temperature resistance, ozone resistance and weather resistance; hydrophobicity and proper air permeability; insulation properties; can achieve food hygiene requirements of the health level, can meet the requirements of a variety of colors. Disadvantage is that the mechanical strength of rubber materials in the poor, not oil resistance. Temperature range -100～+300℃. Can be applied to high temperature, cold, ultraviolet irradiation of strong areas and high-rise buildings.

(3) Neoprene sealing tape

Compared with other special rubber, individual performance is poorer, but the overall performance balance is good. Excellent weather resistance, ozone resistance, heat aging resistance and oil solvent resistance, good chemical resistance and excellent flame resistance, good adhesion. Poor storage stability, hardening occurs during storage, bad cold resistance. Relative density is large. Generally black products Used in the environment with oil resistance, heat resistance, resistance to begging, the use of temperature range -30 ~ +120 ℃.

(4) Acid and alkali nitrile rubber seals

The main features are oil resistance, solvent resistance, but not resistant to ketone, ester and chlorinated hydrocarbons and other media, elasticity and mechanical properties are very good. The disadvantage is that it is easy to aging and cracking in ozone and oxidation, cold resistance, low temperature resistance is poor. Use of temperature range -30 ~ +120 ℃

(5)Polyurethane rubber sealing strip

With good elasticity and excellent abrasion resistance, good oil resistance, hardness adjustable range (hardness 65 ~ 80 degrees), mechanical properties (tensile strength, elongation) superior, excellent cold resistance and resistance to chemicals intertwined corrosive properties, the price of raw materials is higher. For recyclable materials. Various colors are available. Temperature range -60～+80℃. Suitable for earthquake-prone areas, areas with strong vibration such as near railroads or plants with high-power cranes, and areas with strong ultraviolet radiation.

(6) Thermoplastic vulcanized rubber

Sealant has the flexibility and elasticity of rubber, and can be produced by plastic processing methods without vulcanization, and the waste can be recycled and reused. Is a wider range of performance materials, heat resistance, cold resistance, good, small relative density, oil resistance, solvent resistance and chloroprene rubber performance is similar to the compression deformation and abrasion resistance and other not so good. Can meet the requirements of a variety of colors using the temperature range -40 ~ +150 ℃, can be applied to cold, as well as medium and high-rise buildings.

(7) Plasticized polyvinyl chloride sealing tape

Materials are cheap and easy to obtain, with corrosion resistance, wear resistance, acid and alkali and all kinds of chemical media, combustion resistance, high mechanical strength; the disadvantage is that the plasticizer with the system is easy to migrate, with the prolongation of time to become hard and brittle, loss of elasticity, not aging resistance, weather resistance and low temperature performance is poor. Generally dark-colored products.

(8) Surface coating materials

The surface of the sealing strip is coated with polyurethane, silicone, PTFE and other substances to replace the traditional process of surface flocking. The coated sealing strip has good abrasion 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 the door and window fan.