FKM vs NBR vs EPDM: Which Seal Material to Choose?
Release time:
May 06,2026
Choosing the right seal material is critical for industrial performance and durability. NBR, EPDM, and FKM are the most widely used rubber materials, each with unique properties for different working conditions.
Choosing the right seal material is critical for industrial performance and durability. NBR, EPDM, and FKM are the most widely used rubber materials, each with unique properties for different working conditions.
NBR (Nitrile Butadiene Rubber) is the most cost-effective choice. It offers excellent oil and fuel resistance, good abrasion resistance, and works well in hydraulic systems, automotive engines, and general industrial applications. NBR performs best at -30°C to 100°C, making it ideal for standard working environments.
EPDM (Ethylene Propylene Diene Monomer) excels in outdoor and weather-resistant applications. It features outstanding resistance to ozone, sunlight, heat, and water/steam. EPDM is widely used in plumbing, HVAC, automotive weather seals, and outdoor equipment, with a temperature range of -40°C to 150°C. Note: EPDM has poor oil resistance.
FKM (Fluoroelastomer) is a high-performance material for extreme conditions. It provides superior resistance to high temperatures, chemicals, oils, and corrosion. FKM is widely used in aerospace, chemical processing, and high-temperature engines, with a temperature range of -20°C to 250°C. It is the top choice for harsh environments.
Conclusion: Choose NBR for cost-sensitive oil applications, EPDM for outdoor/steam conditions, and FKM for extreme high-temperature/chemical environments.
We are a professional seal manufacturer providing custom NBR, EPDM, and FKM seals. Contact us for material selection and free quotes.
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