Chlorosulfonated Polyethylene Resin Manufacturer Ozone & UV Resistant Csm Csm Resin Manufacturer in China

• Customization: Available
• Material: Csm Rubber
• Appearance: Powder
• Form: Powdered Rubber
• Chlorine %: 35±2
• Sulfur Content %: 1.0~1.5
• Volatile Matter % ≤: 0.5
• Tensile Strength MPa ≥: 25
• Elongation at Break % ≥: 450
• Mooney Viscosity Ml(1+4) 100ºC: 50~60
• Transport Package: PP Bag
• Specification: 25kg/pkg
• Trademark: CSM rubber
• Origin: China
• HS Code: 3901909000
• Production Capacity: 300000 Ton/Year

Product Description

Product Overview

Chlorosulphonated polyethylene Rubber (CSM) is resistant to chromic, nitric, sulfuric and phosphoric acids and alkalis like chlorine dioxide, and hydrogen peroxide. CSM is often used in products which are in contact with sulfuric acid or nitric acid due to its excellent acid resistance. It's resistance to acids and alkalis make it a great choice for chemical processing applications.

 

Chlorosulphonated polyethylene rubber also provides good fire resistance and is considered to be self-extinguishing. Its abrasion resistant properties combined with its fire resistance make CSM an excellent polymer for applications in mining operations.

 

Product Parameters

PROJECT	HT-403	HT-503	HT-603	HT-703	HT-803	HT-903	HT-604	HT-48	HT-45
Chlorine %	35±2	35±2	35±2	35±2	35±2	35±2	43±2	43±2	25±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	1.0~1.5
Volatile matter % ≤	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5
Tensile strength MPa ≥	25	25	25	25	25	25	-	-	-
Elongation at break % ≥	450	450	450	450	450	450	-	-	-
Mooney viscosity ML(1+4) 100ºC	40~50	50~60	60~70	70~80	85~95	95~110	50~70	70~90	35~45

Uses

1. Industrial & Chemical Applications

• Chemical Tank Linings

  • Resists acids, alkalis, and oxidizers (e.g., sulfuric acid, chlorine).

• Pipe & Valve Seals

  • Used in corrosive fluid handling systems.

• Industrial Hoses

  • For chemical transfer, mining, and oil/gas applications.

2. Electrical & Cable Industry

• Cable Jacketing

  • Flame-retardant, UV-resistant coatings for power/nuclear cables.

• Insulation Layers

  • High dielectric strength for high-voltage cables.

3. Construction & Infrastructure

• Waterproofing Membranes

  • Roofing, tunnels, and bridge seals (weather/ozone resistant).

• Expansion Joints

  • Durability in extreme temperatures (-40°C to +150°C).

4. Automotive & Aerospace

• Fuel Hose Covers

  • Resists gasoline/oil permeation.

• Aircraft Seals

  • Lightweight + resistant to jet fuels/hydraulic fluids.

5. Marine & Offshore

• Ship Linings & Dock Seals

  • Saltwater/chemical corrosion protection.

6. Specialty Uses

• Radiation-Resistant Gear

  • Nuclear plant components.

• Printing Rolls

  • Solvent-resistant rollers.

Why Choose CSM?

1.Extreme Weather Resistance (UV/ozone)
2.Flame Retardant (self-extinguishing)
3.Chemical Inertness (acids/alkalis)
4.Long Service Life (>15 years in harsh conditions)

  

Application Guide

 

Here's a pure English product parameter comparison table for CSM-20, CSM-30, CSM-40, and CSM-45 grades of Chlorosulfonated Polyethylene (CSM) rubber, where the numerical suffixes (20, 30, 40, 45) represent Mooney viscosity ranges (ML 1+4 at 100°C). The table highlights key properties and applications for each grade:

 

Parameter	CSM-20	CSM-30	CSM-40	CSM-45
Mooney Viscosity (ML 1+4, 100°C)	20-30	30-40	40-50	45-55
Hardness (Shore A)	50 ± 5	60 ± 5	70 ± 5	75 ± 5
Tensile Strength (MPa)	8.0-10.0	9.0-11.0	11.0-13.0	12.0-14.0
Elongation at Break (%)	400-500	350-450	300-400	250-350
Chlorine Content (%)	29-32	33-36	35-38	36-40
Density (g/cm³)	1.10-1.15	1.15-1.18	1.18-1.22	1.20-1.25
Service Temperature (°C)	-30 to +120	-40 to +130	-40 to +150	-40 to +150
Key Applications	Flexible seals, Low-pressure hoses, Soft linings	Cable jackets, General-purpose linings, Weatherstrips	Chemical tank linings, Industrial hoses, Fuel covers	High-performance seals, Nuclear/offshore cables, Extreme-condition linings

Different applications of each grade of CSM:

1. CSM-20 has a good application in coatings for soft materials and adhesive products, among which the best application is rubber paste;

2. CSM-30 is mainly used in coatings for hard rubber compounds due to its weather resistance, aging resistance, acid and alkali resistance, and solvent resistance, as well as anti-corrosion coatings for the inner and outer walls of factories and equipment under acid and alkali conditions;

3. CSM-30 can also be used for medical gloves, electrical insulation gloves, etc.;

4. CSM-40 (3304, 3305) is mainly used in cable insulation sheaths and cable sheaths, and is superior to CSM-20 in terms of oil resistance, deformation resistance, fracture resistance, wear resistance, and acid resistance;

5. CSM-45 is mainly used in the production of high-rigidity products such as plastic carpets, waterproof roofs, soles, sponge insoles, etc.
 

Production method

 

Traditional Solvent Method

The traditional solvent-based process is a liquid-phase manufacturing method that utilizes chlorine and sulfur dioxide as chlorosulfonating agents. While established, this method presents several significant limitations:

1. Low Efficiency

   • Sulfur dioxide utilization rate is only 20-30%

   • Final product contains just 25-45% chlorine content

2. Product Composition

   • Sulfur content ranges from 0.8-1.7%

3. Critical Drawbacks

   • Requires carbon tetrachloride (a toxic and environmentally hazardous solvent)

   • Involves complex post-processing steps including:

     • Acidic gas removal

     • CSM condensation

     • Separation operations

These limitations have driven the development of more sustainable production methods.

Gas-Phase Method (Advanced Process)

The gas-phase synthesis of chlorosulfonated polyethylene represents a major technological advancement:

1. Development Timeline

   • Conceptual development began in the 1980s

   • First industrial-scale implementation achieved in 2009

   • Successfully trial-produced in the same year

   • Officially certified by the China Petroleum and Chemical Industry Federation in May 2010

2. Key Advantages

   • Solvent-free process: Eliminates need for organic solvents entirely

   • Direct gas-solid reaction:

     • Simplified process flow

     • Enhanced energy efficiency

   • Environmental benefits:

     • Reduced hazardous waste

     • Lower carbon footprint

3. Industrial Significance
   This breakthrough technology represents a cleaner, more sustainable production method for CSM, addressing both environmental concerns and process efficiency challenges of the traditional method.

 

Product Description

         Chlorosulfonated polyethylene rubber (CSM) is a synthetic rubber that contains polymers and chlorosulfonating agents. Due to its excellent heat resistance, corrosion resistance, oil resistance, ozone resistance and UV resistance, it is widely used in many fields such as automobiles, construction, and chemicals.
The main parameters of CSM include density (1.1-1.2g/cm³), hardness (50-90 Shore A), tensile strength (8-20MPa), and elongation (300%-600%).
The main advantages of CSM include heat resistance, corrosion resistance, oil resistance, ozone resistance, and UV resistance, making it an ideal material for high temperature, chemical corrosion, oil, and UV environments.
However, CSM also has the disadvantage of high cost, and its performance will decrease at low temperatures, making it unsuitable for extremely cold environments.
In practical applications, CSM is mainly used in automotive seals, brake systems, suspension systems, etc., as well as building sealing materials, waterproof materials, chemical pipelines, valves, pumps and other corrosion-resistant equipment, power cable sheaths, electrical insulation parts, medical equipment, medical gloves and other industries.

Packaging and storage:

Packaging: Net weight 25KG/bag, net weight of pallet 1000KG per pallet.

Storage: Store in a cool, dry, well-ventilated closed environment. Avoid exposure to direct sunlight.

Detailed Photos

Company Profile

 

 

Weifang Phoenix New Material Co., Ltd

 

       Weifang Phoenix New Material Co., Ltd is a high-tech chemical enterprise integrating research and development,

production, sales and technical services. Headquartered in Weifang, Shandong Province. Its production facilities are

ocated in Weifang Binhai Chemical Industry Park, a state-approved chemical industry park.
 

      Our mission is to be the leading sustainable "one-stop shop" chemical solutions company, providing customers

with innovative, science-led, differentiated products and solutions. To this end, we provide a safe and healthy working

environment for our employees and comply with all local, national and international regulations.