Nitrile Rubber (NBR)
Nitrile Rubber (NBR) is a widely used elastomer due to its high oil and fuel resistant properties and excellent tensile strength.
Typical Applications
- Aeronautical (good heat resistance)
- Oil resistant seals and diaphragms
- Non latex gloves
- Rollers
Advantages
Disadvantages
Properties
Resistance
Advantages
- Good Resilience (elasticity, recovery from deformation)
Disadvantages
- Inferior to NR in terms of physical strength and flexibility
- Can be attached by ozone, aromatic hydrocarbons, ketones, esters and aldehydes
Properties
| Chemical Name | Acrylonitrile Butadiene Rubber |
| Hardness Range | 40 – 100 |
| Colours | Limited Range |
| Maximum continuous Temp | 100°C |
| Maximum Intermittent Temp | 130°C |
| Low Temperature Resistance | -20°C |
Resistance
| Oxidation | Good |
| Ozone & Weathering | Fair |
| *ASTM Oil No. 1 @ 20°C | Excellent |
| @ 100°C | Good |
| *ASTM Oil No. 3 @ 20°C | Excellent |
| @ 100°C | Good |
| *ASTM Fuel B @ 40°C | Fair |
| Alcohol (20°C) | Good |
| Acetone (20°C) | Unsatisfactory |
| Benzene (20°C) | Unsatisfactory |
| Acids | Fair |
| Bases | Fair |
| Physical Strength | Good |
| Compression Set | Good |
| Tear and Abrasion Resistance | Good |
| Tear and Abrasion Resilience | Good |
| Permeability to Gases | Low |
| Electrical Strength | Poor |
| Flame Resistance | Poor |
| Water Resistance | Good |
