NBR rubber sheet

The NBR rubber sheet is made from acrylonitrile-butadiene rubber and is suitable for applications involving contact with oils, greases and fuels. It is used in mechanical engineering, in maintenance and in technical systems where elasticity and media resistance are required.

NBR is characterised by a balanced combination of mechanical load capacity and chemical resistance. The rubber sheets serve, among other things, as sealing material, protective covering or technical separating layer. Typical areas of use are in oil-carrying environments, in hydraulic systems and in general industrial requirements.

Compared with universal elastomers, the focus of NBR is clearly on resistance to mineral oils and lubricants. For applications without media contact or with high weathering exposure, other materials are better suited, while NBR plays to its strengths in technical indoor areas.

As part of the range of rubber sheets, the NBR rubber sheet covers a clearly defined area of application for industry and trade.

Technical properties of the NBR rubber sheet

The NBR rubber sheet is designed for use in technically demanding environments. The properties are tailored to applications with media contact and mechanical stress.

Material base

NBR stands for acrylonitrile-butadiene rubber. The acrylonitrile content largely determines the oil and fuel resistance of the material. As the acrylonitrile content increases, media resistance increases while low-temperature flexibility decreases.

Mechanical characteristics

NBR rubber sheets offer good abrasion resistance as well as stable elasticity under compressive and impact loads. This makes them suitable as sealing and protective material in machines, units and technical systems.

Temperature resistance

The typical service temperature range lies in the moderate minus range up to the upper double-digit plus range. NBR thus covers the majority of classic industrial applications in which oil and media contact is the main focus.

Media resistance

NBR is resistant to:

• mineral oils
• lubricating greases
• fuels
• hydraulic oils

NBR shows lower resistance to weathering, ozone and UV radiation. For outdoor applications or permanent weathering, a material such as EPDM rubber sheet is better suited.

Areas of use of the NBR rubber sheet

The NBR rubber sheet is used wherever components are permanently in contact with oils, greases or fuel-containing media. The material is suitable for static and slightly dynamic applications in technical indoor areas.

Mechanical engineering and plant construction

In machines and technical systems, the NBR rubber sheet serves as sealing or protective material. Typical applications are covers, separating layers or coverings in oil-carrying assemblies and units.

Sealing and gasket technology

Due to its defined oil and media resistance, NBR is frequently used for the production of flat gaskets, sealing strips and technical sealing elements. For this application, the NBR rubber sheet is also available as a pre-fabricated NBR gasket.

Workshops and industrial work areas

In workshops and production environments, NBR is used as a protective or floor covering, particularly in areas with regular contact with lubricants or hydraulic oils.

Technical components and cut pieces

NBR rubber sheets are used for the manufacture of technical parts such as sleeves, simple diaphragms or functional cut pieces. The dimensional accuracy and material stability support use in series-production and individual applications.

Dimensions, thicknesses and cut pieces of the NBR rubber sheet

The NBR rubber sheet is available in different material thicknesses and can be flexibly adapted to technical requirements. Depending on the application, thin sheets are used for sealing and separating functions or thicker versions for protective and covering purposes.

For industrial applications, cut to size is the main focus. NBR rubber sheets are cut precisely to the required lengths, widths and contours and are therefore suitable for series applications as well as for individual pieces or spare parts.

Typical cases of use for custom-made cut pieces are covers, sealing strips, coverings or functional installation parts. The combination of defined material properties and precisely fitting cut makes integration into existing assemblies and systems easier.

Further information on available formats and processing options can be found in the rubber sheets section.

NBR compared with other rubber materials

The selection of the suitable elastomer depends heavily on the application medium and the ambient conditions. Within rubber materials, NBR occupies a clearly defined position.

NBR versus EPDM

NBR is designed for contact with oils, greases and fuels. EPDM, by contrast, has pronounced resistance to weathering, ozone and UV radiation. For outdoor applications or permanent weathering, EPDM is better suited, while NBR plays to its strengths in technical indoor areas with media contact. A material-related alternative for weather-exposed applications is the EPDM rubber sheet.

NBR versus universal rubber sheets

Universal rubber sheets without specific media resistance are frequently used for simple protective or damping tasks. By comparison, NBR offers defined chemical resistance and is preferred as soon as oil or grease contact is part of the application.

Classification in material selection

NBR is suitable for applications with clearly defined media requirements and moderate temperature ranges. Targeted material selection reduces premature wear and increases the operational safety of technical components.

An overview of other available materials and areas of use is provided by the rubber sheets category

NBR rubber sheet – quick selection guide

The NBR rubber sheet is suitable for industrial applications with regular contact with oils, greases and fuel-containing media. It is used when defined media resistance combined with good mechanical load capacity is required.

For technical indoor applications with oil or lubricant contact, NBR represents a reliable material solution. Where requirements for weathering or UV resistance apply, an alternative elastomer such as EPDM is recommended.

The selection of the suitable material thickness and dimensions depends on the mechanical load and the installation situation. Custom-made cut pieces make integration into existing machines, systems and technical assemblies easier.

Frequently asked questions about the NBR rubber sheet

What is an NBR rubber sheet particularly suitable for? An NBR rubber sheet is suitable for applications involving contact with oils, greases, fuels and hydraulic media. Typical fields of use are in mechanical engineering, in workshops and in technical systems.

In which temperature range can NBR be used? In everyday industrial use, NBR is used in moderate temperature ranges. The material reliably covers classic applications in machines and systems.

Is NBR suitable for outdoor use? NBR plays to its strengths in technical indoor areas. For applications with permanent weathering or UV exposure, a material designed for this such as EPDM is advisable.

Are individual cut pieces possible? NBR rubber sheets can be cut precisely to size. They are therefore suitable for precisely fitting installation situations, series applications and spare parts.

Is NBR also available as a gasket? For sealing applications, the material is also available as a pre-fabricated NBR gasket.

Frequently asked questions

• What is an NBR rubber sheet? An NBR rubber sheet is made from nitrile rubber (NBR), a synthetic rubber that is particularly resistant to oil, fuels and chemicals.
• What special properties does NBR rubber have? NBR rubber is characterised by its high resistance to oils, greases and fuels, but is also resistant to abrasion and mechanical loads.
• For which applications is NBR rubber used? NBR rubber sheets are frequently used in the automotive industry, for gaskets, O-rings, hoses, fuel lines and in machines where there is contact with oils and fuels.
• How does NBR rubber behave at high temperatures? NBR rubber remains functional in a temperature range from -30 °C to +120 °C, whereby it can maintain its mechanical properties at higher temperatures.
• Is NBR rubber resistant to chemicals? Yes, NBR rubber is particularly resistant to a wide range of chemicals, especially to aliphatic hydrocarbons such as petrol and diesel.
• How thick are NBR rubber sheets normally? NBR rubber sheets are available in thicknesses from 1 mm to about 50 mm, depending on the requirement and area of application.
• Can NBR rubber sheets be cut? Yes, NBR rubber sheets can easily be cut and adapted with a sharp knife or special cutting tools.
• How do you care for NBR rubber sheets? They require little care, but should be checked regularly for cracks or damage and cleaned with suitable cleaning agents if necessary.
• Where are NBR rubber sheets particularly frequently used? They are frequently used in the automotive and mechanical engineering industry, where they serve as sealing material in environments with oil and fuel contact.
• How long does an NBR rubber sheet last? With correct use and care, an NBR rubber sheet can last many years, particularly in environments that do not have extreme temperatures or UV radiation.
• How does NBR rubber behave in the cold? NBR rubber remains flexible at temperatures down to about -30 °C, whereby extreme cold can somewhat reduce elasticity.
• Where can you buy NBR rubber sheets? Directly from us.