Aflas vs. HNBR

Attribute	Aflas	HNBR
Chemical Structure	Tetrafluoroethylene propylene	Hydrogenated acrylonitrile butadiene rubber
Temperature Resistance	Up to 200°C	Up to 150°C
Chemical Resistance	Excellent resistance to acids, bases, and steam	Good resistance to oils, fuels, and chemicals
Applications	Used in oil and gas industry, chemical processing, and automotive applications	Used in automotive seals, hoses, and gaskets

Introduction

When it comes to choosing the right material for seals, gaskets, and O-rings in industrial applications, Aflas and HNBR are two popular options. Both materials offer unique properties that make them suitable for different environments and conditions. In this article, we will compare the attributes of Aflas and HNBR to help you make an informed decision for your specific needs.

Chemical Resistance

Aflas is known for its excellent chemical resistance, particularly to acids, bases, and a wide range of industrial chemicals. This makes it a preferred choice for applications where exposure to harsh chemicals is a concern. On the other hand, HNBR also offers good chemical resistance, but it may not be as resistant to certain chemicals as Aflas. It is important to consider the specific chemicals that the material will be exposed to when choosing between Aflas and HNBR.

Temperature Resistance

Both Aflas and HNBR are known for their high temperature resistance, making them suitable for applications where elevated temperatures are a concern. Aflas has a higher temperature resistance compared to HNBR, with the ability to withstand temperatures up to 200°C. HNBR, on the other hand, can typically withstand temperatures up to 150°C. If your application requires high temperature resistance, Aflas may be the better choice.

Compression Set

Compression set refers to the ability of a material to retain its shape and elasticity after being compressed. Aflas has a lower compression set compared to HNBR, meaning it is better able to maintain its sealing properties over time. HNBR, on the other hand, may experience more deformation and loss of elasticity when subjected to compression. If compression set is a critical factor for your application, Aflas may be the more suitable choice.

Abrasion Resistance

Both Aflas and HNBR offer good abrasion resistance, making them suitable for applications where wear and tear are a concern. Aflas is known for its superior abrasion resistance compared to HNBR, which may experience more wear over time. If your application involves high levels of abrasion, Aflas may be the better choice to ensure longevity and durability.

Oil Resistance

Oil resistance is another important factor to consider when choosing between Aflas and HNBR. Aflas offers excellent oil resistance, making it suitable for applications where exposure to oils and lubricants is a concern. HNBR also provides good oil resistance, but it may not be as resistant to certain types of oils as Aflas. If your application involves exposure to oils, Aflas may be the more suitable choice.

Conclusion

In conclusion, both Aflas and HNBR offer unique properties that make them suitable for different applications. Aflas is known for its excellent chemical resistance, high temperature resistance, low compression set, superior abrasion resistance, and excellent oil resistance. On the other hand, HNBR also offers good chemical resistance, high temperature resistance, and abrasion resistance, but may not be as resistant to certain chemicals and oils as Aflas. When choosing between Aflas and HNBR, it is important to consider the specific requirements of your application to determine which material will best meet your needs.