Chemical and Weather Resistance of CSM Rubber
Chlorosulfonated polyethylene (CSM) is selected for applications that combine outdoor weathering, ozone exposure and chemical contact. Actual performance depends on the CSM grade, compound formulation, cure system, thickness, temperature, concentration, exposure duration and mechanical stress.
Where CSM is commonly evaluated
- Industrial hose covers and cable jackets
- Coated fabrics and membranes
- Gaskets, seals and protective components
- Outdoor and marine-exposure systems
Selection approach
Do not select a material from polymer-family labels alone. Compare the exact compound or finished article under the intended service conditions and confirm the current grade documentation.
Technical note: Terms such as “best”, “non-toxic”, “fully chemical-resistant” or blanket REACH/RoHS claims should not be inferred for every CSM grade or final compound.
