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0102030405

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

Chlorosulfonated polyethylene, commonly known as CSM, is a high-performance synthetic rubber produced by leading suppliers and factories in China. This material features a completely saturated main chain and pendant groups, enabling it to undergo vulcanization through various molding methods. CSM can be effectively vulcanized using a range of cross-linking agents, including metal oxides, sulfur, polyols, and peroxides, The distinct molecular structure of CSM provides its vulcanizates with exceptional properties, such as outstanding ozone resistance, weather resistance, and remarkable durability against heat, oils, chemicals, and aging. When properly formulated, CSM vulcanizate becomes an excellent choice for rubber production, making it a preferred material among manufacturers seeking high-quality solutions. Discover the benefits of CSM for your applications by choosing reputable suppliers and factories in China

Product Detail

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℃	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
Equivalents	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℃

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.

Wire & cable
Waterproof roll
Automobile hoses
Rubber roller

Frequently Asked Questions (FAQ)

What are the international equivalent grades for these CSM materials?

Our products directly correspond to well-known industry standards: F403 is equivalent to DUPONT HYPALON 40S and TOSO-CSM TS-430; F503 corresponds to HYPALON 40 and TOSO-CSM TS-530; F803 corresponds to HYPALON 4085 and TOSO-CSM TS-830; CSM45 corresponds to HYPALON 45 and TOSO-CSM TS-320.

What is the continuous operating temperature limit for these products?

These CSM rubber materials offer exceptional heat resistance and can operate at elevated working temperatures of up to 150℃, making them suitable for impulse-tested automotive hoses and high-temperature parts.

Which grade is best suited for high-performance automotive hoses and seal products?

Grade F803 (with a Mooney viscosity of 85-95) is specifically formulated for high-performance automotive hoses, special hoses, air and oil seals, specialty rubber rollers, and demanding industrial rubber goods.

What is the difference between standard grades (F403, F503, F803) and CSM45?

F403, F503, and F803 feature a chlorine content of 33-37% with high tensile strength (≥25 MPa) for vulcanized rubber applications. CSM45 features a 23-27% chlorine content and is tailored for thermoplastic, low-temperature resistant materials without the need for vulcanization.

What are the main performance advantages of these CSM materials?

Key advantages include outstanding ozone and weather resistance, flame retardancy, broad chemical resistance, electrical insulation, high mechanical and friction resistance, permanent color fastness, and oil/solvent resistance.

What applications are covered in the construction and coating sectors?

In construction and other industrial fields, these materials are widely utilized in caulking agents, PU foam surfaces, single-ply waterproof roofing rolls, heat insulation tapes, escalator handrails, rubber dams, dinghies, coatings, and adhesives.