Summary. We are a leading nitrile rubber washer supplier, offering high-quality nitrile washers ideal for various industries. This including aerospace, marine, and military. Nitrile rubber, also known as NBR or Buna-N, is valued for its oil and water resistance, tear resistance, and cost-effectiveness, despite having limited flexibility and poor resistance to extreme temperatures and weather conditions.


What is nitrile rubber? Nitrile is a popular elastomer used for a wide range of components and applications, such as washers. It has a series of different properties that make it ideal for use in many different industrial environments. But, like many other rubber materials, its pros and cons will determine whether it’s right for you. Stephens Gaskets, is a leading supplier of nitrile rubber washer, we can help. Nitrile falls under a few different names including:

  • Nitrile Rubber
  • Buna-N
  • NBR

Nitrile Rubber | What Is It?

Nitrile (commonly referred to as NBR rubber and Buna-N) is a synthetic rubber copolymer made from acrylonitrile and butadiene. It is a collection of unsaturated copolymers, 2-propenenitrile and butadiene monomers (1,2-butadiene and 1,3-butadiene). Its composition will determine the physical and chemical properties the material has. But, a general rule of thumb is that the higher the nitrogen content is within the polymer, the stronger its resistance to oils. Therefore, lowering its flexibility. Although nitrile rubber is more resistant to roils and acids than natural rubber, a key disadvantage of the material is its inferior flexibility.

Using Nitrile | Nitrile Rubber Washer

With a range of versatile properties belonging to the material, nitrile rubber is used across a huge variety of applications. Some of which include: washers, O-rings, gaskets, oil seals, vehicle transmission belts, hoses, and cable jacketing.

Industries that use nitrile rubber vary, but nitrile components are often for use to support the aerospace, marine, and military sectors.

The Pros 

Nitrile offers the following benefits:

  • Great tear resistance
  • Rebound
  • Non-polar solvent resistant
  • Good oil resistance
  • Water resistant
  • Fantastic abrasion resistance
  • Less expensive than fluoroelastomers

The Cons 

Some disadvantages of nitrile rubber include:

  • Poor resistance to ozone, weather, and sunlight
  • Minimal resistance to high temperatures
  • Poor flame resistance

Its physical and chemical properties vary depending on the polymer’s composition of nitrile. The more nitrile there is within the polymer, the higher its resistance to oils but the lower its flexibility. Nitrile rubber is more resistant than natural rubber to oils and acids, and has superior strength, but suffers from inferior flexibility.

Nitrile Rubber Washer Supplier | Why Stephens Gaskets?

Here at Stephens Gaskets, we are one of the country’s leading manufacturers of rubber washers, gaskets, and shims. Therefore, we’ve got plenty of experience under our belts when it comes to nitrile rubber washers. So, no matter what your requirements are, we can assure you that our team will always go the extra mile to meet them. We commit to offer a service that exceeds your expectations every time. Additionally, we do this by offering an end-to-end service that uses the highest quality of materials and resources to manufacture flawless products.

If you would like to find out more about nitrile rubber manufacturing, including our nitrile washers, then you can explore our website today. Alternatively, you can call 0121 544 5808 to speak to a member of our helpful and friendly team. With a bespoke and fully flexible service from start to finish, you’ll be sure to find what you need with Stephens Gaskets.

If you have found this blog helpful, then you may wish to read our previous blog: Nitrile Vs Neoprene Washers, Which One Is The Best? 

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