NBR seals

For low-wear hydraulic and pneumatic seals

Our offering

  • High-performance quality seals and moulded parts out of NBR according to DIN-Norm and Siemens Norm SN 53145-1
  • Individual cuts using our ultramodern 3D purewater cutting machinery
  • Many resistances
  • Plate or rolled goods
  • Seamless XXL format
  • From quantity 1 up to series production
  • High Quality

Any queries regarding this product?Then contact us using this form or call:Technische Dichtungen+49 5231 9607-20We will be happy to advise.


Our available NBR-materials

A-NT 68-00 (NBR) / NBR 68


  • NBR quality
  • sulfur cured
  • Trafo oil, biogas and biodiesel resistant
  • ACN content ca. 33%
  • complies with Siemens Norm SN 53145-1
  • PAH free acc. AfPS GS 2014 corresponds to Cat. 1


A-NT 68-00 (NBR)

Delivery forms

The material is available in rolls.
Lengthon requeston request
Widthup to 3,200 mmup to 3,200 mm
Thickness2 mm3 mm
Other sizes and cut-to-size pieces upon request.

NBR for low-wear hydraulic and pneumatic seals

Acrylonitrile butadiene rubber, often simply called NBR or nitrile rubber, is a synthetic rubber of chemical stability and high abrasion resistance. The abbreviation NBR results from its English name nitrile butadiene rubber. This modern sealing material is an elastomer also known by the trade names Maypren, Perbunan or Elaprimodor. Steinbach AG uses this material to manufacture high-performance quality seals and moulded parts for your individual requirements.


NBR (nitrile butadiene rubber) is resistant to diesel, alcohols, oils, petrol, greases, diluted alkaline solutions and acids, biogas, aliphatic hydrocarbons and hot water. It is generally true that the chemical resistance of NBR increases with the rising amount of acrylonitrile. However, NBR is not resistant to UV radiation and ozone.

Please note that

  • NBR seals with a high amount of acrylonitrile are suitable for higher temperatures up to a maximum of 120 °C.
  • NBR seals with a low amount of acrylonitrile are suitable for lower temperatures down to a minimum of -30 °C.

The material hardly becomes electrostatically charged so that there is no reason to fear any sparking. Furthermore, NBR is classified as being physiologically harmless.

Additionally, NBR disposes of good mechanical properties like, for example:

  • low compression set
  • high tensile strength
  • high abrasion resistance


  • predestined for low-wear seals
  • resistant to propane and butane
  • resistant to animal and vegetable oils and greases
  • resistant to hot water up to a maximum of 80 °C
  • resistant to silicone oils, silicone greases, diluted alkaline solutions and acids
  • resistant to mineral oils and fuels
  • high abrasion resistance and tensile strength
  • low permanent deformation

Range of uses and areas of applications

Typical applications of NBR are seals for tank manholes and seals for the industrial sectors of hydraulics and pneumatics, especially in the beverage production and in the water and gas distribution.

Our available formats

We will provide you with NBR as plate and rolled goods, as seals according to DIN standard as well as in individual cuts using our ultramodern 3D purewater cutting machinery making a precise assembly possible. Do you require a seamless XXL format? We can manufacture for you even that one. We deliver starting already at a quantity of 1 piece. Please get into contact with us. Whether by phone, e-mail or contact form, we would be happy to advise you.

Any queries regarding this product?

Then contact us using this form or call:

+49 5231 9607-20

We will be happy to advise.


Frequently asked questions about NBR

What is a NBR seal?

An NBR seal consists of nitrile rubber and is oil- and grease-resistant.

What is NBR for a material?

NBR is a rubber or a synthetic rubber.

Is NBR harmful to health?

Due to its properties, NBR is not used in the food sector.

Is NBR gasoline-resistant?

Yes, NBR is gasoline-resistant.

What does NBR 70 mean?

The Shore hardness 70 ° indicates the hardness of the rubber. The standard hardness is 65-70 ° Shore.

Is NBR food safe?

No, NBR is not food safe.