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Chlorosulfonated Polyethylene (CSM)


General introduction1607304499449442.png

Chlorosulfonated polyethylene, referred to as CSM, is a kind of elastomer which has completely saturated main chain and pendant group and can be vulcanized by all kind of cross linking agent. Because of its unique molecular structure, CSM vulcanizate has excellent ozone resistance and weatherability. In additional, properly formulated CSM vulcanizate has excellent resistance to heat, oil, chemicals and aging.

 

SUNPREN™ CSM is chlorosulfonated polyethylene produced by Sundow Polymers Co.,LTD.

Characteristic of CSM

image.png Permanent bright colors

image.png Superior ozone and weather resistance, even for the formation without carbon black

image.png High working temperature up to 150℃

image.png Resistance to a wide range of aggressive chemicals

image.png Moderate resistance to oil and solvent depending on chlorine level

image.png Good flame retardancy

image.png Electrical insulating properties

image.png Excellent resistance to abrasion and mechanic abuse


SUNPREN CSM Series

Sundow Polymers supplies two series CSM grades, one is H-series, which is produced by traditional solvent technology; another is M-series, which is produced by non-solvent new technology (Gas-Solid phase technology).

 

² H-Series

H- Series is produced by traditional solvent technology. This series has excellent mechanical property and good solubility in some organic solvents. So not only it can be widely used for general rubber applications, some grades can also be used for applications such as coating and adhesives.

 

²M-Series

M- Series is produced by new non-solvent technology. Its production process is without solvents such as carbon tetrachloride, so it is environmental friendly and don’t destroy the ozone layer. So this series contains no harmful organic solvent and has no harm to operator’s health. And another point is, though this series’ mechanical property is a little lower than H-series, it can meet the technical demand of most general rubber application. Because this technology is environment friendly, it is easier to be approved for capability expansion.

So in the future this series is more cost-effective and is a better choice to replace H-Series. 


Sundow SUNPRE CSM Guide-H Series

SUNDOW

SUNPREN   CSM

DUPONT

HYPALON

TOSOH

TOSO-CSM

SUNDOW   SUNPREN CSM main datas

Distinguishing

Features

Application

Chlorine

content, %

Sulfur

content,%

Mooney Viscosity ML(1+4)

100 deg.C

H-20S

20

CN-1500

27-31

1.3-1.7

23-33

n  Good solubility

n  Low solution viscosity

n  Good low temperature flexibility

Rubber cement, adhesives, tape products,   soft coating. natural rubber modification , synthetic rubber

H-30S

30

TS-340

41-45

0.8-1.2

35-45

n  Good solubility

n  Low solution viscosity

n  Forms hard glossy films

Hard   coatings, adhesives, outdoor architectural coatings. Anti-corrosion lining of   chemical facilities, chemical equipments and pipelines.

H-4535

40S

TS-430

33-37

0.8-1.2

40-50

n  General –purpose grade

n  Good balance in physical properties and processability

Automotive hoses, rubber seal, wire and cable rubber rollerstape and specialty rubber products

H-5535

40

TS-530

33-37

0.8-1.2

50-60

n  Similar to H-4535 with high Mooney viscosity

Automotive hoses, rubber seal, wire and cablerubber rollerstape and specialty rubber products

H-45

45

TS-320

22-25

0.8-1.2

32-42

n  High uncured strength

n  Good heat resistance

n  Good low-temperature flexibility

Magnetic rubber, radiation shield, high rigidity   products, floor adhesives, water resistant roof seals, rubber rollers, tapes,   waterproofing membranes.

H-4085

4085

TS-830

34-38

0.8-1.2

85-95

n  Similar to H-5535, but with higher Mooney viscosity

High performance automotive hoses, special hoseseal, oil seal productswire and cablerubber compoundspecial   rubber rollerspecial   tape  and special rubber products

                                                                                                                           Sundow SUNPRE CSM Guide-M Series

SUNDOW

SUNPREN   CSM

DUPONT

HYPALON

TOSOH

TOSO-CSM

SUNDOW   SUNPREN CSM main datas

Distinguishing

Features

Application

Chlorine

content, %

Sulfur

content,%

Mooney Viscosity ML(1+4)

100 deg.C

M-4035

40S

TS-430

33-37

1.0-1.5

40-50

n  General –purpose grade

n  Good balance in physical properties and processability

Automotive hoses, rubber seal, wire and cable rubber rollerstape and specialty rubber products

M-5035

40

TS-530

33-37

1.0-1.5

50-60

n  Similar to M-4035 with high Mooney viscosity

Automotive hoses, rubber seal, wire and cablerubber rollerstape and specialty rubber products

M-8536

4085

TS-830

34-38

1.0-1.5

85-95

n  Similar to M-5035,but with higher Mooney viscosity

High performance automotive hoses, special hoseseal, oil seal productswire and cablerubber compoundspecial   rubber rollerspecial   tape  and special rubber products


Application

◆ Power steering and oil cooler hose for automotive and industrial, hydraulic hose, where impulse testing is performed up to 150℃.

◆ Fuel hose covers, various vacuum and emission tubing.

◆ Sheathing material for cable construction, resistant to weathering, sunlight, ozone, heat.

◆ General industrial products, such as hydraulic pressure hose, oil and chemical delivery hose, rubber roller, liner, chemical resistant an high strength convey belt etc.

◆ Construction products, such as handrail of escalator, pad, single-ply roofing system

◆ Fabric reinforced, heat-weldable lining for reservoirs and effluent pits.

◆ Other products, such as rubber dam, rubber dinghy etc.

◆ Coating and adhesives


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