| Abbreviation | FKM |
| Common Name | Fluoro Elastomers |
| ASTM D-2000 classification | HK |
| Military(Mil-Std417) | MIL=R-25897/MIL-R-83248 |
| Chemical Definition | Fluorinated Hydrocarbon |
| General Characteristics | |
| Durometer-Range (Shore A) | 60-90 |
| Tensile Range (P.S.I) | 500-2000 |
| Elongation (Max.%) | 300 |
| Compression Set | Good |
| Resilience-Rebound | Fair |
| Abrasion Resistance | Good |
| Tear Resistance | Good |
| Solvent Resistance | Excellent |
| Oil Resistance | Excellent |
| Low Temperature Usage (°F) | +10° to -10° |
| High Temperature Usage (°F) | 400° to 600°(depending on time and service condition) |
| Aging Weather-Sunlight | Excellent |
| Adhesion To Metals | Good |