Nitrile Rubber

What is Nitrile?

Nitrile rubber (NBR) is also known as Buna-N, and acrylonitrile butadiene rubber. It is an oil-resistant synthetic rubber produced from a co-polymer of acrylonitrile (ACN) and butadiene.  Indeed one of the most important factors in the properties of NBR is the ratio of ACN to butadiene. The more ACN the higher its resistance to oils but the lower its flexibility. Trade names include Perbunan, Nipol, Krynac and Europrene.

What are some common nitrile rubber applications?

Nitrile gaskets, seals and mouldings are an economic choice for applications requiring high resistance to oil and fuels. It follows that the main applications are in fuel hoses, gaskets, rollers, and other products in which oil resistance is required. However, due to it’s versatility Nitrile is also used in applications requiring resistance to heat, abrasion, water, and gas permeability.


Nitrile rubber mouldings

Nitrile Rubber Specifications

Hardness: Shore A
Tensile Strength PSI
Good 200-3000
Tear Resistance
Impact Resistance
Compression Set
Low Temperature
High Temperature
Intermittent High
Weather and Sunlight
Abrasion Resistance
Solvent Resistance
Good to Excellent
Oils and Gasoline
Good to Excellent
Adhesion to Metals
Good to Excellent

Rubber materials expertise

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.

We also maintain a large quantity and variety of quality raw materials in stock, enabling us to offer fast turnaround and provide for tight deadlines.

The information provided here is only a guide to Nitrile’s primary characteristics and uses. The relationship between material, product performance and blend options is complex.

Below you’ll find many free resources to help you think about material selection and we are always on hand to discuss your requirements and provide expert advice.


Find out more about one of our most commonly used Nitrile rubber materials

Nitrile 60

Free Resources