nitrile gasket material, a rubber gasket material also referred to as Buna-N and NBR

Nitrile Gaskets & Materials

Nitrile, also known as Buna-N and NBR, is a very widely used gasket material and is most commonly used when broad resistance to oils is needed. Nitrile is best known for its resistance to oils, grease, solvents and fuels. Nitrile is a moderate-low cost material that is commonly available in a number of different grades.

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Nitrile (Buna-N) Material Offerings

In addition to standard commercial-grade Nitrile, we carry:

FDA approved nitrile for food applications
Premium nitrile with high tensile strength (1500 PSI)
Cloth-inserted nitrile for diaphragms or in applications where stability is a concern
Carboxylated Nitrile (XNBR) for enhanced strength and abrasion resistance
Hydrogenated Nitrile (HNBR) for improved temperature and oil resistance

One-Stop-Shop for Nitrile Gasket Manufacturing

Excelsior manufactures nitrile in a number of different ways including waterjet, flash-cut, lathe-cut and a number of die-cutting methods. As one of the leading gasket manufacturers in the US, your nitrile (Buna-N) gasket materials are handled in-house. This reduces the costs you pay and improves lead times significantly. Your part design and quantity are matched with the correct manufacturing process to yield the highest quality, lowest cost part possible. You can also choose to apply pressure-sensitive adhesive to this material.

Optimal Usage for Nitrile Gaskets

Nitrile gaskets offer versatile sealing solutions across a variety of industries. It is resilient against factors including oils, fuels, and greases which could ruin and degrade other gasket materials.

It is a go-to-choice for applications that rely on petroleum-based fluids. Excelsior frequently provides customized nitrile gaskets and seals for companies manufacturing and maintaining all styles of engines, pumps, hydraulic systems and compressors.

Nitrile gaskets also offer a good resistance to acids and solvents that can break down other materials. It is known to last long even when subjected to abrasion and is less likely to tear.

Lastly, nitrile’s versatility includes an ability to function effectively in a wide temperature range. It is recommended for temperatures ranging from -40°F to 250°F (-40°C to 121°C).

One environment where Excelsior does not recommend usage of nitrile gasket materials is applications with high UV or Ozone exposure. Organic rubber gaskets such as Buna -S (SBR), Buna-N (Nitrile), natural rubber, synthetic isoprene break down relatively quickly in UV exposure. In this case EPDM is a more preferred choice.