Material Compatibility Quick-Reference
Elastomer and seal compatibility ratings for common process fluids. Filter by fluid type, temperature range, or compatibility rating to find the right material for your application.
Legend:ExcellentGoodLimitedNot Recommended
9 of 9 materials
| Elastomer / Seal | Temp Range (°F) | Water / Steam | Dilute Acids | Caustics / Alkalis | Hydrocarbons / Oils | Ketones / Solvents | Fuels / Gasoline | Chlorinated Solvents | Food / Dairy / Pharma | Cryogenic / LNG | High-Temp Steam | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Buna-N (Nitrile) NBR | -40 to +250°F | Excellent | Good | Good | Excellent | Not Recommended | Excellent | Not Recommended | Limited | Limited | Not Recommended | + |
EPDM EPDM | -65 to +300°F | Excellent | Excellent | Excellent | Not Recommended | Limited | Not Recommended | Limited | Excellent | Good | Good | + |
Viton® (FKM) FKM | -15 to +400°F | Good | Excellent | Limited | Excellent | Good | Excellent | Excellent | Good | Not Recommended | Excellent | + |
PTFE (Teflon®) PTFE | -320 to +450°F | Excellent | Excellent | Excellent | Excellent | Excellent | Excellent | Excellent | Excellent | Excellent | Excellent | + |
Neoprene (CR) CR | -40 to +250°F | Excellent | Good | Good | Good | Limited | Good | Limited | Limited | Good | Limited | + |
Silicone (VMQ) VMQ | -100 to +450°F | Good | Limited | Limited | Limited | Limited | Not Recommended | Not Recommended | Excellent | Excellent | Good | + |
PEEK PEEK | -65 to +480°F | Excellent | Excellent | Excellent | Excellent | Excellent | Excellent | Good | Excellent | Excellent | Excellent | + |
Kalrez® (FFKM) FFKM | -20 to +600°F | Excellent | Excellent | Excellent | Excellent | Excellent | Excellent | Excellent | Excellent | Limited | Excellent | + |
Aflas® (TFE/P) TFE/P | -5 to +400°F | Excellent | Excellent | Excellent | Excellent | Good | Excellent | Good | Limited | Not Recommended | Excellent | + |
Disclaimer: Compatibility ratings are general guidelines based on published industry data. Actual performance depends on concentration, temperature, pressure, and other service conditions. Always verify material selection with the manufacturer or NCI engineering for critical applications.
Need help selecting the right material?
Our application engineers can recommend the optimal elastomer for your specific fluid, temperature, and pressure conditions.
Quick RFQ
Request Pricing