Nitrile Rubber

Nitrile Rubber (NBR) from Polykem factory is an oil-resistant synthetic rubber made from acrylonitrile and butadiene. It offers a balanced combination of oil resistance, wear resistance, heat resistance, sealing performance and mechanical properties. Due to its reliable performance in contact with oils, fuels and lubricants, NBR is widely used in seals, O-rings, hoses, gaskets and other oil-resistant rubber components.

Polykem supplies NBR for automotive, sealing and industrial rubber applications. With experience in rubber materials and international trade, we support customers with product selection, quality control coordination, competitive supply solutions and reliable delivery arrangements to meet different purchasing requirements.

Product Parameter

CAS Number：9003-18-3

ACN Content：18% – 50%

Appearance：Light yellow to tan solid/crumb

Mooney Viscosity：40 – 90 ML(1+4) 100°C

Hardness：40 – 90 Shore A

Operating Temperature：-30°C to 120°C

Different types of Nitrile Butadiene Rubber(NBR) technical parameters are not the same, welcome to send a form or email to inform your specific needs.

Key Performance Features

NBR is mainly valued for its balanced performance in oil resistance, mechanical strength and processing adaptability.

• Oil and Fuel Resistance：Suitable for rubber parts exposed to mineral oils, fuels, lubricants and other petroleum-based fluids.
• Good Abrasion Resistance：Provides durability for components subject to friction, wear and repeated use.
• Mechanical Strength：Offers good tensile strength and compression resistance for various industrial rubber products.
• Processing Flexibility：Different NBR grades can be selected according to hardness requirements, processing methods and final applications.
• Wide Application Compatibility：Commonly used in automotive, machinery, sealing and industrial rubber products.

Applications

Our Nitrile Rubber can be applied to the following scenarios:

1. O-rings, oil seals and gaskets for automotive and industrial equipment
2. Fuel, oil and hydraulic hoses
3. Rubber rollers, belts and molded machinery parts
4. Sealing components for oil and gas equipment
5. Cable compounds and other electrical components
6. Footwear, adhesives and PVC modification

Storage & Packaging

Store away from direct sunlight, ozone sources, and heat to avoid premature surface cracking. Standard shelf life is typically 12 months from production date under proper storage conditions.

Why Choose Polykem

1. Manufacturing Capacity and Grade Matching

As a direct manufacturer and supplier, Polykem provides NBR grades with different ACN contents and Mooney viscosities. Our team can recommend a suitable grade or assist with equivalent-grade matching based on the customer’s existing specification.

2. Quality Control for Different Applications

Our professional quality team and in-house laboratory monitor key indicators to support batch consistency and traceability. Available grades can be selected for applications requiring oil resistance, abrasion resistance, low-temperature flexibility or reliable processing performance.

3. Certifications, Samples and Testing Support

Relevant certifications, COA and SDS documentation can be provided according to the selected product. Free samples are available for qualified projects, allowing customers to carry out formulation trials and application testing before bulk purchasing.

FAQ

Are free samples available for testing?

Free samples are available for qualified projects. Sample quantity, availability and freight terms are confirmed according to the selected grade and destination.

Is NBR suitable for oil and fuel applications?

Yes. NBR is widely selected for applications involving mineral oils, fuels and lubricants due to its good resistance to petroleum-based fluids. The actual performance depends on the specific grade and formulation.

What is the difference between NBR and HNBR?

NBR is widely used for oil-resistant rubber applications, while Hydrogenated nitrile rubber (HNBR) offers improved heat resistance, ozone resistance and mechanical performance through hydrogenation modification. For more demanding conditions involving higher temperatures or longer service life, HNBR may be considered as an alternative material.

What packaging options are available for NBR orders?

Packaging options can be discussed according to the product grade, order quantity and transportation requirements. Polykem supports flexible arrangements for trial orders and bulk purchases.

Related Articles

NBR and HNBR Rubber for Oil-Resistant Seals and Hoses: How to Choose the Right Material

How to Choose NBR: Focus on ACN Content and Mooney Viscosity

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