DESCRIPTION
Widely known for its physical strength and retention of properties after long-term exposure to heat, oil, and chemicals.
Depending on filler selection and loading, HNBR compounds typically have tensile strengths of 20 – 31 Mpa when measured at 23 °C.
Compounding techniques allow for HNBR to be used over a broad temperature range, -40 °C to 150 °C, and 160 °C in oil, with minimal degradation over long periods of time.
For low-temperature performance, low ACN grades should be used; high-temperature performance can be obtained by using highly saturated HNBR grades with white fillers.
As a group, HNBR elastomers have excellent resistance to common automotive fluids (e.g., engine oil, coolant, fuel, etc.) and many industrial chemicals.
Physical & Mechanical Properties
| Durometer or Hardness Range | 30 – 95 Shore A |
| Tensile Strength Range | 1,500 – 3,500 PSI |
| Elongation (Range %) | 90 % – 550 % |
| Abrasion Resistance | Good to Excellent |
| Adhesion to Metal | Excellent |
| Adhesion to Rigid Materials | Good to Excellent |
| Compression Set | Good to Excellent |
| Flex Cracking Resistance | Fair to Good |
| Impact Resistance | Excellent |
| Resilience / Rebound | Good |
| Tear Resistance | Good to Excellent |
| Vibration Dampening | Fair to Good |
