Chemical Compatibility Chart for O-Rings: Complete Guide
Complete chemical compatibility chart for O-Rings. Learn which material works with oils, fuels, acids, bases and solvents.
Why Chemical Compatibility Matters
Choosing the wrong O-Ring material can result in premature seal failure, costly leaks and potential equipment damage. Chemical compatibility is one of the most critical factors to consider when selecting an O-Ring.
Compatibility Chart
| Chemical Fluid | NBR | FKM | EPDM | VMQ | PTFE |
|---|---|---|---|---|---|
| Mineral Oils | ✅ | ✅ | ❌ | ✅ | ✅ |
| Diesel Fuel | ✅ | ✅ | ❌ | ✅ | ✅ |
| Gasoline | ✅ | ✅ | ❌ | ✅ | ✅ |
| Water (Room Temp) | ⚠️ | ❌ | ✅ | ✅ | ✅ |
| Steam | ❌ | ❌ | ✅ | ✅ | ✅ |
| Acids (Dilute) | ❌ | ✅ | ⚠️ | ❌ | ✅ |
| Bases (Dilute) | ❌ | ✅ | ✅ | ❌ | ✅ |
| Organic Solvents | ❌ | ✅ | ❌ | ❌ | ✅ |
✅ = Compatible | ❌ = Not Compatible | ⚠️ = Use with Caution
Tips for Selecting the Right Material
1. Always verify chemical compatibility with the specific fluid in your application
2. Consider both temperature and chemistry
3. Test the material in real conditions when possible
4. Consult with specialists if in doubt
Need Help with Chemical Compatibility?
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