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Rubber Material-NBR

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What is NBR?

“NBR” stands for Nitrile Butadiene Rubber, which is a synthetic rubber polymer known for its excellent oil and fuel resistance, along with a wide range of other desirable properties. NBR is derived from the copolymerization of acrylonitrile and butadiene monomers. It is often referred to as “nitrile rubber.”

Nitrile rubber is widely used in automotive components, hoses, gaskets, seals, gloves, O-rings, and various mechanical and industrial applications. 

NBR Information

Process: Injection Molding, Compression Molding

Colors: Custom Colors

Tolerance: ±0.5mm

Price: tires, conveyor belts, hoses, seals, gaskets, footwear, gloves, adhesives, and various industrial components.

Application: automotive parts, footwear, furniture, industrial components, medical devices, seals, gaskets, and more.

Recommended Wall Thickness: 1mm-10mm

NBR Properties

NBR’s excellent oil resistance and sealing capabilities make it a preferred choice in situations where exposure to oils and fuels is common. There is a table shows the common NBR properties.

Density (g/cm³)0.8-1.2
Hardness (Shore A)20 – 95
Tensile Strength (MPa)5-25
Elongation at Break (%)100-600
Tear Strength (N/mm)


Abrasion ResistanceExcellent
Temperature Range (°C)-30 to 100
Electrical InsulationGood
Chemical ResistanceGood
Solvent ResistanceFair to Good
Oil ResistanceExcellent
Adhesion to MetalsGood
Compression SetModerate
UV and Weather ResistanceLimited

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