Nitrile Rubber – What You Need To Know

Chemical properties vary depending on the type and amount of acrylonitrile and butadiene in the copolymer.

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1. It has excellent resistance to oils and grease, making it ideal for applications where these fluids are present.
2. It is also resistant to many other chemicals, including acids, alkalis, and solvents.
3. Nitrile rubber is a durable material that can withstand high temperatures and pressures.
4. It has good compression set resistance, meaning it will retain its shape and provide a tight seal even after repeated compressions.
5. Nitrile rubber is an affordable and widely available material.
6. It is easy to work with, making it a good choice for custom applications.

Nitrile rubber NBR is available in both standard and high-performance grades. Standard Nitrile rubber has good resistance to oils, whereas high-performance nitrile rubber offers better resistance to a wider range of chemicals, including acids and solvents.

It should be noted however, that with the increased usage of Bio-Fuels, many grades of Nitrile are not suitable and either a PVC/Nitrile blend or a flouroelastomer should be used.

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There is an interesting article here that goes into greater detail.

Nitrile Rubber: A Material Made for Oil Resistance

Unlike natural rubber and other materials, nitrile gaskets and other parts are more resistant to heat aging. This feature is a key advantage, as it allows nitrile to not harden and lose its damping capability as quickly as natural rubber and other solutions. Nitrile rubber is also a great material choice for applications that require abrasion resistance and metal adhesion.

Due to its versatility and strong resistances, nitrile material is used in applications involving not only oil, fuel, and chemical resistance, but also those that require resistance to heat, abrasion, water, and gas permeability. From oil rigs to bowling alleys, nitrile rubber can be the right material for your application.

Timco works with a wide variety of companies to provide custom molded and die cut nitrile parts with demanding physical properties. Whether you call them Buna-N seals, NBR o-rings, or something else, our team can design and provide the best, most cost-effective custom molded or die cut parts for your applications.