3R842
Rubber
Tasteless, ordorless and non toxic, this high quality white nitrile rubber is F.D.A. approved and authorized by the food industries. It prossesses a very good resistance to oil (petroleum-based hydraulic fluids), temperature, alkalis and acids.
Applications
The 3R842 is used as gaskets such as belts, skirt-boards, and much more, mostly in the food industry.
Specifications
Technical Data
| Polymer | Nitrile, Styrene-Butadiene (NBR/SBR) |
|---|---|
| Specific gravity | 1.4 gr/cc |
| Color | White |
| Hardness (Shore A) (ASTM D2240) | 60 |
| Temperature | -40°C to 93°C (-40°F to 200°F) |
| Tensile, psi (ASTM D412) | 1000 min. |
| Ultimate Elongation, % (ASTM D412) | 300 min. |
| Compression Set (ASTM D395B) | 22 hrs @ 70C (158F): 50% max. |
| Heat Aging (ASTM D573) | 70 hrs @ 100C (212F) - Changed: Hardness: +/- 15 points max., Tensile: +/- 30% max., Elongation: -50% max. |
| Oil Aging #3 (ASTM D471) | 70 hrs @ 100C (212F) - Changed: Volume 60% max. |
| Abrasion Resistance | Good |
| Tear Resistance | Fair |
| Ozone Resistance | Poor |
| Impermeability to Gases | Excellent |
| Resistance to Dilute Acid | Good |
| Resistance to aromatic hydro-carbons | Good |
| Heat Aging | Very Good |
N.B. The information presented may differ from practice. We recommend conducting tests according to the conditions of use. We accept no responsibility for results obtained by the application of this information or the safety and suitability of our products. The data is subject to certain variations without notice.
