Materials technologies: XNBR [carboxylated hydrogenated nitrile rubber]
At DP Seals we pride ourselves on being able to provide specialist advice in selecting and developing exactly the right blend of materials to meet a vast range of performance requirements.
This information is only a guide to the more common materials, their primary characteristics and uses. The relationship between material, product performance and blend options is complex.
| Material | Carboxylated Nitrile | ||
| Description | Excellent water, oil and fuel resistance with superior abrasion resistance and load bearing capabilities. Retains physical properties over a wide temperature range. | ||
| Cost | ££ | ||
| Hardness: Shore A (Hint) | 50 - 95 | ||
| Tensile Strength (1000psi) | 2.5 - 7.0 | ||
| Tear Resistance | Good | ||
| Impact Resistance | Excellent | ||
| Compression Set (Method B, %) | 20 - 50 | ||
| Electrical Resistance (Ω/cm2 | 1*1011 | ||
| Low Temperature (°C) | -25 | ||
| High Temperature (°C) | 125 | ||
| intermittent High (°C) | 140 | ||
| Ozone (protected) | Good | ||
| Weather and Sunlight | Good | ||
| Gas Permeation | Fair | ||
| Water | Fair | ||
| Acid/Base - Dilute | Good | ||
| Acid/Base Concentrated | Fair | ||
| Solvent - Aliphatic | Good | ||
| Solvent - Aromatic | Good | ||
| Oils and Gasoline | Excellent | ||
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