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| Nitrile butadiene rubber |
| Short designation |
NBR |
| Brand name |
Perbunan®
Buna N® |
| Chemical description |
Nitrile butadiene rubber |
| Mechanical properties |
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| Hardness range [Shore A/D] |
40 – 90 |
| Wear resistance |
Good – very good |
| Tensile strength [MPa] |
10 – 25 |
| Physical properties |
|
| Density [g/cm³] |
1.4 |
| Application temperatures |
|
| Temperature range, short-term [°C] |
-40 – 120 |
| Temperature range, continuous [°C] |
-30 – 100 |
| Other properties |
|
| Flammability according to UL 94 |
Burns (still HB) |
| Chemical resistance |
|
| Mineral grease and oils |
++ |
| Petrol |
++ |
| Weak/strong acids |
o/-- |
| Weak/strong alkalis |
+/- |
| Perchloroethylene |
- |
| Trichloroethylene |
-- |
| Acetone |
-- |
| Alcohols |
+ |
| Brake fluid |
- |
Hydrolysis resistance
(hot water) |
+ |
| Weather/UV radiation |
o |
|
| ++ very good / + good / o satisfactory / - moderate (significant change to properties) / -- unsuitable |
| This information is for reference only; we do not assume any liability for its accuracy. The properties of elastomer materials are highly dependent on their specific composition and their additives. |
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