NBR | CutWise

NBR (Nitrile Rubber)

Rubber

NBR, or nitrile butadiene rubber, is a synthetic rubber known for its excellent resistance to oils, greases, and fuels. Thanks to these properties, NBR is widely used in the automotive industry, mechanical engineering, and the oil and gas sector. The material offers a good balance between flexibility, mechanical strength, and chemical resistance.
Well-known trade names for NBR include Buna-N, Perbunan®, Nipol®, and Europrene®. These grades are used worldwide in applications where oil resistance and durability are essential.

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Properties of NBR

Excellent resistance to oils, greases, and fuels
Good mechanical properties such as tensile strength and wear resistance
Low gas permeability, suitable for seals
Temperature resistant from -30 °C to +100 °C (short term up to +120 °C)
Good processability: easy to glue, weld, and form
Limited resistance to ozone, UV radiation, and weather
Not suitable for aromatic solvents or strong acids
Available in various hardnesses (Shore A 30–90) and colors
Cost-effective alternative for oil exposure applications

Thanks to these properties, NBR is a reliable choice for applications requiring oil resistance and mechanical performance.

Datasheet Title

Technical properties of NBR

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Product information and operations

Thickness	Dimensions	Color
0.5 mm	3000x1400 mm	Zwart 70 Shore
1 mm	3000x1400 mm	Zwart 70 Shore FDA Wit 60 Shore
1.5 mm	3000x1400 mm	Zwart 70 Shore
2 mm	3000x1400 mm	Zwart 70 Shore FDA Wit 60 Shore
3 mm	3000x1400 mm	Zwart 70 Shore FDA Wit 60 Shore
4 mm	3000x1400 mm	Zwart 70 Shore FDA Wit 60 Shore
5 mm	3000x1400 mm	Zwart 70 Shore FDA Wit 60 Shore
6 mm	3000x1400 mm	Zwart 70 Shore FDA Wit 60 Shore
8 mm	3000x1400 mm	Zwart 70 Shore FDA Wit 60 Shore
10 mm	3000x1400 mm	Zwart 70 Shore FDA Wit 60 Shore
12 mm	3000x1400 mm	Zwart 70 Shore
15 mm	3000x1400 mm	Zwart 70 Shore
20 mm	3000x1400 mm	Zwart 70 Shore

Technical properties

Algemeen

Dichtheid 1,00–1,25 g/cm³

Kleur Zwart / op aanvraag

Wateropname < 0,5 %

Temperatuurbereik

Gebruikstemperatuur minimaal -30 °C

Gebruikstemperatuur maximaal +100 °C

Mechanisch

Treksterkte 10–25 MPa

Rek bij breuk 200–600 %

Hardheid (Shore A) 30–90

Compressieset (22h/70 °C) 20–35 %

Elektrische eigenschappen

Diëlektrische sterkte 20–30 kV/mm

Volumeweerstand 10¹³–10¹⁵ Ω·cm

Diëlektrische constante (1MHz) 4–6

Thermische eigenschappen

Glasovergangstemperatuur -30 °C

Max. gebruikstemperatuur +100 °C

Lineaire uitzettingscoëfficiënt 150·10⁻⁶/K

Warmtegeleidingscoëfficiënt 0,2–0,3 W/m·K

Applications of NBR

O-rings and seals in hydraulic and pneumatic systems

Hoses and gaskets in the automotive industry

Fuel- and oil-resistant gloves and protective clothing

Seals and diaphragms in the oil & gas industry

Conveyor belts and rollers in industrial applications

Adhesives and sealants for various uses

Jacketing of cables and electrical components

Flooring and mats in industrial environments

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Frequently Asked Questions about NBR

What makes NBR suitable for oil and grease applications?

NBR has high resistance to mineral oils, greases, and fuels, making it ideal for seals and hoses in oil-rich environments.

Is NBR resistant to ozone and UV?

Standard NBR has limited resistance to ozone and UV; for outdoor use, a UV-stabilized grade is recommended.

Can NBR be used at low temperatures?

Yes NBR remains flexible down to about –30 °C, depending on the formulation.

Is NBR food-safe?

Standard NBR is not food-safe. Special FDA- and EU-compliant grades are available for food-contact applications.

How does NBR compare to other rubbers like EPDM or Viton®?

NBR excels in oil resistance but has lower UV and high-temperature resistance compared to EPDM or Viton®.

Can NBR be laser-cut or milled?

Yes NBR can be both laser-cut and milled, depending on required precision and application.

Is NBR recyclable?

Yes NBR is recyclable, though local recycling options may vary.

What are alternatives to NBR for high-temperature applications?

For higher temperature resistance, consider HNBR (hydrogenated NBR) or Viton®.

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Material HB Title

NBR CUTTING

NBR (Nitrile Rubber)

Properties of NBR