Carboxylated Nitrile (XNBR)
Carboxylated Nitrile compounds are made when additions of carboxylated acid groups are introduced to the Nitrile polymer backbone. The result of carboxylating the Nitrile is improved abrasion resistance, tear resistance, and tensile strength. Like all elastomer materials, as we greatly improve one property, we tend to lose value in another area. With Carboxylated Nitrile, lost benefits are less compression set, resilience, and ozone resistance.
Carboxylated Nitrile is used commonly in paper and plastic converting applications and in other processes where outstanding abrasion resistance is required.
Ask us if Carboxylated Nitrile is the right material for your application and budget.
Carboxylated Nitrile Common Names:
- XNBR
- CN
Carboxylated Nitrile vs. Nitrile Properties:
(5) = Excellent (4) = Above Average (3) = Average (2) = Fair (1) = Poor
Rubber Compound |
Nitrile | Carboxylated Nitrile |
| BN | XN | |
| Physical Properties | ||
| Hardness Range Shore A | 20-95 | 45-95 |
| Hardness Range P&J | 0-200 | 20-170 |
| Abrasion Resistance | 3 | 5 |
| Tear Resistance | 3 | 5 |
| Load Bearing | 4 | 5 |
| Hysteresis | 2 | 1 |
| Resistance to Denting | 3 | 2 |
| Maximum Service Temperature (C/F) | 121/250 | 135/275 |
| Ozone Resistance | 1 | 1 |
| Resiliency | 3 | 2 |
| Solvent Resistance | ||
| Acids | 2 | 2 |
| Caustics | 3 | 3 |
| Paraffinic Hydrocarbons | 5 | 5 |
| Aromatic Hydrocarbons | 3 | 3 |
| Chlorinated Hydrocarbons | 1 | 1 |
| Water | 4 | 3 |
| Ketones | 2 | 2 |
| Alcohols | 5 | 4 |
| Esters | 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 | ● | ● |
