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Chlorosulfonated Polyethylene (CSM) - Quality Synthetic Rubber from Trusted China Suppliers and Factory
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Chlorosulfonated Polyethylene (CSM) - Quality Synthetic Rubber from Trusted China Suppliers and Factory

Chlorosulfonated polyethylene, commonly known as CSM, is a highly specialized synthetic rubber produced in China. This unique material features a completely saturated main chain and pendant groups, making it ideal for various vulcanization methods. CSM can be effectively vulcanized using a wide range of cross-linking agents, including metal oxides, sulfur, polyols, and peroxides, ensuring versatility for manufacturers.

As one of the leading suppliers and factories of CSM, we take pride in offering a product with exceptional properties. The distinct molecular structure of CSM vulcanizate provides outstanding ozone resistance, weather resistance, and remarkable durability against heat, oil, chemicals, and aging. With properly formulated CSM vulcanizate, rubber production can achieve superior performance and longevity.

    Product Parameters

    Item Unit F403 F503 F803 CSM45
    Chlorine content % 33-37 33-37 33-37 23-27
    Sulfur content % 1.0-1.5 1.0-1.5 1.0-1.5 1.0-1.5
    Volatile content % ≤0.5 ≤0.5 ≤0.5 ≤0.5
    Tensile strength MPa ≥25 ≥25 ≥25 -
    Elongation at break % ≥450 ≥450 ≥450 -
    Mooney viscosity ML(1+4)100°C 40-50 50-60 85-95 35-45
    Application - Various automotive hoses, rubber seal products, wire and cable, rubber rollers, tape and specialty rubber products Various automotive hoses, rubber seal products, wire and cable, rubber rollers, tape and specialty rubber products High performance automotive hoses, special hose, air seal and oil seal products, wire and cable, special rubber roller, special tape and special rubber products Thermoplastic low-temperature resistant materials without vulcanization
    Equivalents DUPONT HYPALON 40S 40 4085 45
    TOSO-CSM TS-430 TS-530 TS-830 TS-320

    Product Advantage

    • Excellent ozone resistance and weather resistance
    • Good flame retardancy
    • Corrosion resistance to many chemicals
    • Moderate oil and solvent resistance depending on chlorine level
    • Electrical insulating properties
    • Excellent friction resistance and mechanical damage resistance
    • Permanent bright colors
    • High working temperature up to 150℃
    fine new material -CSM (3)lta

    Product Application

    Automobile parts

    Automotive steering power pipes and oil cooler hose for automotive industrial,like hydraulic hose,exhaust hoses, fuel hoses, where impulse testing is performed up to 150℃.

    Wires & cables

    Sheathing material for color cable and wire construction with good resistant to weathering, sunlight, ozone, heat.

    Hoses

    Fuel hose covers, various vacuum and emission tubing with excellent chemical resistance and low permeability to water and fluorinated cold aging agent

    Construction

    Construction products, such as caulking agents, surface layer of PU foam, insulation materials, foam products, heat insulation tapes ,handrail of escalator, pad, single-ply roofing system with excellent waterproof, heat insulation and anti ultraviolet characteristics

    Other products

    Coating and adhesives ,Rubber dam, rubber dinghy etc.by its good aging resistance, ozone resistance, chemical corrosion resistance and high temperature resistance

    PRODUCT APPLICATION6g5
    Wire & cable
    fine new material -CSM (2)7dy
    Waterproof roll
    IMG_7361(20240123-092039)cdk
    Automobile hoses
    rubber rollerew3
    Rubber roller

    Frequently Asked Questions (FAQ)

    1. What are the equivalent grades for CSM F403, F503, and F803?
    CSM F403, F503, and F803 are equivalent to DuPont Hypalon 40S, 40, and 4085 respectively, as well as Tosoh TOSO-CSM TS-430, TS-530, and TS-830.
    2. What makes CSM rubber ideal for automotive hoses?
    CSM rubber exhibits high working temperature resistance up to 150℃, moderate oil and solvent resistance, and excellent ozone and weather durability, making it perfect for automotive steering power pipes and oil cooler hoses.
    3. How does the chlorine content differ among these CSM grades?
    F403, F503, and F803 contain 33-37% chlorine, providing balanced oil, chemical, and environmental resistance. CSM45 has a lower chlorine content of 23-27%, designed for thermoplastic low-temperature resistant applications without vulcanization.
    4. Can CSM be used for outdoor construction applications?
    Yes, CSM offers excellent waterproof, heat insulation, and anti-ultraviolet characteristics, making it highly suitable for single-ply roofing systems, caulking agents, PU foam surface layers, and escalator handrails.
    5. What are the electrical insulating properties of CSM?
    CSM provides reliable electrical insulating performance combined with superior resistance to weathering, sunlight, ozone, and heat, making it an excellent sheathing material for color cables and wires.