Quick Answer
Industrial hose design should separate inner-tube requirements from cover requirements. Chemical media, pressure, temperature, outdoor exposure and flex duty drive the material choice.
Engineering requirements
- Transferred chemical or fluid
- Concentration and temperature
- Pressure / vacuum
- Outdoor UV and ozone
- Abrasion and flexing
- Layer adhesion
Recommended material families
| Material | Role / reason |
|---|---|
| CSM | Strong candidate for exposed covers and chemical/weather service. |
| ECO / GECO | Candidates for oil/fuel-contact layers where low permeability matters. |
| CO | Barrier-oriented option in selected fluid/vapor applications. |
Why material selection matters
CSM and epichlorohydrin rubbers can complement each other in multilayer hose designs rather than competing for the same function.
What to confirm before selecting a grade
- Use the CSM grade-selection guide as a starting point, then compare processing and aging in your compound.
- No. Compatibility is media-, concentration- and temperature-specific.
Application note: The final elastomer and compound must be validated in the actual medium, temperature, pressure, dynamic condition and regulatory environment. Published generic resistance rankings are screening tools, not a substitute for application testing.