Csm Rubber Elastomer for Industrial Hoses, Conveyor Belts and Sealing Materials

Product Description

Product Description

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Chlorosulfonated polyethylene (CSM) is a synthetic rubber derived from polyethylene. It combines the advantageous properties of Neoprene (Polychloroprene) with additional enhancements, offering superior performance. CSM rubber is suitable for continuous use at temperatures up to approximately 130°C. It is particularly well-known for its excellent resistance to weathering, UV radiation, ozone, and a wide range of chemicals.

Due to these properties, CSM is widely used in industrial and automotive applications where high performance and durability under extreme environmental conditions are essential. Common products made with CSM rubber include rubber linings, hoses, valve seals, gaskets, and more.

Specification

Project	Unit	FH-403	FH-503	FH-603	FH-703	FH-803	FH-903	FH-604	HT-48
Chl orine content	%	35+2	35+2	35+2	35+2	35+2	35+2	43+2	43+2
Sulfur content	%	1.0~1.5	1.0~1.5	1.0~1.5	1.0~1.5	1.0~1.5	1.0~1.5	1.0~1.5	1.0~1.5
Volatile matter	%≤	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5
Tensile strength	MPaz≥	25	25	25	25	25	25	25	25
Elongation at break	%≥	450	450	450	450	450	450	450	450
Mooney viscosity	ML(1+4) 1009C	40~50	50-60	60~70	70~80	85~95	95~110	50~70	70~90

Application

Chlorosulfonated Polyethylene (CSM) exhibits outstanding physical and chemical properties. Its ozone aging resistance significantly surpasses that of natural rubber, withstanding over 500 hours at 50 pphm ozone concentration without cracking. Its UV resistance is also remarkable, retaining more than 85% of tensile strength after 3,000 hours of accelerated QUV aging.

In terms of chemical resistance, CSM demonstrates long-term durability against strong acids (e.g., 50% sulfuric acid), strong alkalis (e.g., 40% sodium hydr oxide), oils (ASTM #1 standard oils), and oxidizing agents (e.g., 30% hydrogen pero xide). Its mechanical properties are equally impressive: tear strength exceeds 25 kN/m, DIN abrasion is less than 100 mm³, and its abrasion resistance is 60% higher than that of Nitrile Rubber (NBR).

Automotive Applications

Anti-Corrosion Engineering

CSM plays a vital role in the automotive industry. Thanks to its heat resistance and fuel permeability resistance, it is an ideal material for fuel delivery hoses and turbocharger cooling hoses. For instance, in ethanol gaso line permeability tests, CSM hoses exhibit a permeability rate of less than 0.5 g/m²·24h.

In new energy vehicles, CSM is used in battery cooling lines, meeting UL94 V-0 flame retardancy standards while enduring extreme temperature cycles from -40°C to 150°C. Additionally, CSM components like brake system seals and suspension hydraulic pipes demonstrate excellent resistance to pulse fatigue, enduring over 500,000 pressure cycles.

CSM is also widely used in anti-corrosion engineering. Heavy-duty anti-corrosion coatings made from CSM are applied in chemical equipment, offshore platforms, and oil pipelines, offering salt spray resistance of over 1,000 hours and maintaining integrity through thermal cycling from -50°C to 120°C.

For example, a CSM protective coating on an offshore oil platform showed no significant corrosion after 10 years of seawater exposure. CSM can also be combined with epoxy resins to create a flexible, adhesive multilayer anti-corrosion system, significantly extending equipment lifespan.

Cable Industry

In the cable industry, CSM has become the preferred sheath material for nuclear power, mining, and high-voltage cables, due to its excellent electrical insulation and flame-retardant properties. It boasts a volume resistivity greater than 1×1015 Ω·cm and has passed the 50 kGy γ-ray irradiation test, fully meeting the stringent safety standards of nuclear power plants.

Packaging & Shipping

This street light features high brightness, energy saving, environmental protection, and easy installation. It has a waterproof rating of IP67 and has passed CE certification. It is suitable for schools, parks, roadsides, factories, squares, etc. It has a warranty period of 3 years. Moreover, we can provide various styles to meet your needs.

Company Profile

FAQ

Q1: What are the main uses of your products?

Q2: How do customers adjust the formula or process parameters during use?

Q3: What processing techniques are suitable for the product?

A: Our products are widely used in many industries, plastic products: profiles, plates, pipes, cable sheaths, floor leather, etc.; rubber products: sealing strips, rubber rollers, conveyor belts, rubber parts, etc.; automotive industry: shock absorbers, interior parts, hoses, electrical accessories, etc.; building materials: waterproof membranes, coated cloth, insulation materials; medical consumables: catheters, syringes, blood transfusion bags, etc.; wires and cables: oil-resistant, cold-resistant, flame-retardant sheaths; coatings, adhesives, anti-corrosion fields, etc.

A: We can provide technical guidance based on the customer's existing formula system and processing equipment.
Improve impact strength → Recommend adding CPE or MBS in appropriate amounts
Enhance transparency → Use low-haze MBS and control the proportion of lubricants
Improve weather resistance/heat resistance → Add HCPE, CSM or corresponding additives

Extrusion molding (profiles, pipes, cables), injection molding (accessories, connectors, miscellaneous parts), calendering (film, artificial leather), blow molding (film), coating and mixing (tape, coating, anti-corrosion coating), please refer to the product's technical parameter table (TDS) for specific applicable process recommendations

Q4: Do you provide different models or customized services?

Q5: Can you provide free sample testing?

Q6: Can you support air transportation? What are the transportation methods?

We have multiple models for each raw material to meet different performance requirements
 
MBS: high transparency, high impact, fast melting, etc.
 
If customers have special requirements (such as melt index, particle size, thermal stability, etc.), we also provide customized production services

Yes. We provide 0.5-2 kg free samples for first-time customers and provide technical data support
 
If you need to cooperate with formula suggestions, we can also provide one-on-one assistance from technicians.

Yes. Sample packets: DHL, FedEx, UPS and other air transportation services
 
Bulk orders: can be shipped by sea by full container or LCL
 
If UN certification is required, you can also communicate and confirm in advance.