Nitrile Rubber

Unlike natural rubber and other materials, nitrile gaskets and components exhibit superior resistance to heat ageing. This characteristic provides a significant advantage, as it prevents nitrile from hardening and losing its damping capabilities as quickly as natural rubber and alternative solutions. Additionally, nitrile rubber is an excellent choice for applications that require both abrasion resistance and metal adhesion.

Owing to its versatility and robust resistances, nitrile material is utilized in a wide range of applications, including those that demand oil, fuel, and chemical resistance, as well as those requiring protection from heat, abrasion, water, and gas permeability. From oil rigs to bowling alleys, nitrile rubber can be the ideal material for your needs.

Uma Rubber collaborates with a diverse array of companies to provide custom moulded and die-cut nitrile components with stringent physical properties. Whether referred to as Buna-N seals, NBR o-rings, or by another name, our team can design and supply the best, most cost-effective custom moulded or die-cut parts tailored to your applications.

NBR—commonly referred to as nitrile-butadiene rubber, NBR rubber, or Buna-N—has long been an effective option for rubber materials. Nitrile was first developed by BASF and Bayer in 1931, with commercial production commencing four years later in 1935.

Nitrile is a synthetic rubber copolymer created by bonding acrylonitrile (ACN) and butadiene through a process known as polymerization. The composition of NBR can vary in terms of acrylonitrile content; higher ACN levels enhance resistance to hydrocarbon oils, while lower ACN levels improve flexibility.

Following the polymerization process, NBR is formed into sheet rubber. This sheet goes through vulcanization with various additives to enhance specific performance qualities, such as elasticity and puncture resistance. The resulting compound can then be die-cut, extruded, or manufactured through other methods into a variety of components, including seals and o-rings.