Buna-Nitrile
Buna-Nitrile compounds are among the workhorses of the rubber roller industry due their versatility and good all-around physical properties. Nitrile is a synthetic rubber compound that can be blended to enhance toughness, resilience, oil resistance, and other desirable characteristics. It is a very common elastomer and effective in many applications including printing, steel, paper, and other manufacturing industries.
Nitrile compounds can be formulated with variations of several materials including Acrylonitrile (ACN), Polyvinyl Chloride (PVC), Carboxylic Acid (XN or CN), or Hydrogenated (HNBR) to greatly enhance certain desired characteristics.
Contact us for help selecting the best Nitrile material for your application and budget.
Buna-Nitrile Common Names:
- Buna-N
- BN
- Nitrile
- NBR
- Nitrile PVC
- Ebonite
Nitrile Properties Chart:
(5) = EXCELLENT (4) = ABOVE AVERAGE (3) = AVERAGE (2) = FAIR (1) = POOR
Rubber Compound |
Nitrile | High ACN Nitrile | Carboxylated Nitrile Rubber | Hydrogenated Nitrile | Nitrile/PVC |
| BN | BH | XN or CN | HNBR | NP | |
| Physical Properties | |||||
| Hardness Range Shore A | 20-95 | 40-95 | 45-95 | 50-98 | 20-95 |
| Hardness Range P&J | 0-200 | 20-185 | 20-170 | 15-185 | 90-125 |
| Abrasion Resistance | 3 | 3 | 5 | 5 | 4 |
| Tear Resistance | 3 | 3 | 5 | 5 | 3 |
| Load Bearing | 4 | 4 | 5 | 5 | 3 |
| Hysteresis | 2 | 1 | 1 | 5 | 1 |
| Resistance to Denting | 3 | 3 | 2 | 3 | 1 |
| Maximum Service Temperature (C/F) | 121/250 | 120/250 | 135/275 | 160/320 | 121/250 |
| Ozone Resistance | 1 | 1 | 1 | 5 | 4 |
| Resiliency | 3 | 2 | 2 | 4 | 2 |
| Solvent Resistance | |||||
| Acids | 2 | 2 | 2 | 3 | 3 |
| Caustics | 3 | 3 | 3 | 4 | 3 |
| Paraffinic Hydrocarbons | 5 | 5 | 5 | 5 | 5 |
| Aromatic Hydrocarbons | 3 | 4 | 3 | 3 | 4 |
| Chlorinated Hydrocarbons | 1 | 1 | 1 | 4 | 1 |
| Water | 4 | 4 | 3 | 4 | 4 |
| Ketones | 2 | 2 | 2 | 2 | 1 |
| Alcohols | 5 | 5 | 4 | 5 | 5 |
| Esters | 1 | 1 | 1 | 1 | 1 |
| Recommended Applications | |||||
| Coating/Varnishing | ● | ● | ● | ||
| Embossing | ● | ● | |||
| Flexography | ● | ||||
| Laminating | ● | ● | ● | ● | |
| Laser Engraving | |||||
| Metal Decorating | ● | ● | ● | ||
| Offset Printing | ● | ||||
| Paper Making Industry | ● | ● | |||
| Plastics | ● | ||||
| Plate Processors | ● | ● | |||
| Steel Mill Rollers | ● | ● | ● | ||
| Textile Rollers | ● | ||||
| Wood Industry | ● | ● | ● |
