AFLAS vs. EPDM

Attribute	AFLAS	EPDM
Chemical Resistance	Excellent	Good
Temperature Resistance	Excellent	Good
Weather Resistance	Good	Good
Electrical Insulation	Good	Good
Cost	Higher	Lower

Introduction

When it comes to choosing the right material for sealing applications, AFLAS and EPDM are two popular options that are often considered. Both materials have their own unique attributes that make them suitable for different situations. In this article, we will compare the key attributes of AFLAS and EPDM to help you make an informed decision.

Chemical Resistance

One of the most important factors to consider when choosing a sealing material is its chemical resistance. AFLAS is known for its excellent resistance to a wide range of chemicals, including acids, bases, and oils. This makes it a popular choice for applications where exposure to harsh chemicals is a concern. On the other hand, EPDM also offers good chemical resistance, but it may not be as resistant to certain chemicals as AFLAS.

Temperature Resistance

Another important attribute to consider is the temperature resistance of the sealing material. AFLAS has a higher temperature resistance compared to EPDM, making it suitable for applications where high temperatures are a concern. AFLAS can withstand temperatures ranging from -10°C to 200°C, while EPDM typically has a temperature range of -40°C to 150°C. This difference in temperature resistance can be a deciding factor when choosing between AFLAS and EPDM.

Weather Resistance

When it comes to outdoor applications, weather resistance is a key consideration. EPDM is known for its excellent weather resistance, making it a popular choice for outdoor sealing applications. EPDM can withstand exposure to UV radiation, ozone, and extreme weather conditions without deteriorating. AFLAS also offers good weather resistance, but it may not be as durable as EPDM in certain outdoor environments.

Compression Set

Compression set refers to the ability of a material to return to its original shape after being compressed. AFLAS has a lower compression set compared to EPDM, which means it can maintain its sealing properties over a longer period of time. This makes AFLAS a preferred choice for applications where long-term sealing performance is crucial. EPDM, on the other hand, may experience a higher compression set over time, leading to potential sealing issues.

Cost

Cost is always a factor to consider when choosing a sealing material. EPDM is generally more cost-effective compared to AFLAS, making it a popular choice for applications where budget constraints are a concern. AFLAS, on the other hand, is a higher-end material that may come with a higher price tag. However, the superior performance of AFLAS in certain applications may justify the higher cost for some users.

Conclusion

In conclusion, both AFLAS and EPDM have their own unique attributes that make them suitable for different sealing applications. AFLAS offers superior chemical resistance, temperature resistance, and compression set, making it ideal for demanding applications. On the other hand, EPDM is known for its excellent weather resistance and cost-effectiveness, making it a popular choice for outdoor applications with budget constraints. Ultimately, the choice between AFLAS and EPDM will depend on the specific requirements of your sealing application.