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HYPALON CSM

The polyethylene polymer contains additional chlorine and sulfur groups. Chlorine gives the material resistance to flame and mineral oil and also improves the cold flexibility.

Both o-rings and gaskets can be made from Hypalon materials.

Names: Chlorosulfonated PolyethyleneCSMHypalon®

Compound Info

ASTM D1418 DesignationCSM
ASTM D2000/SAE J200 Type, ClassCE
Hardness (Shore A)45-95
Colorblack

Thermal Properties

Min Temp.-50°F (-45°C)
Max Temp.270°F (132°C)

Chemical Resistance

Many acids
Many oxidizing media
Silicone oil and grease
Water and water solvents
Ozone, aging and weathering resistance

Limited Compatibility

Low molecular aliphatic hydrocarbons (propane, butane, fuel)
Mineral oil and grease
Limited swelling in aliphatic oils (ASTM oil No.1)
High swelling in naphthene and aromatic base oils ( IRM 902, IRM 903)
Polar solvents (acetone, methyl ether, ketone, ethyl acetate, diethyl ether, dioxane)
Phosphate-ester based fluids

NOT Compatible

Aromatic hydrocarbons (benzene)
Chlorinated hydrocarbons (trichloroethylene)

Disclaimer: These are general guidelines only. All materials should be tested in your application.

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