What is the difference between NBR and EPDM?

NBR is the standard elastomer for oil and fuel resistance. Most widely used rubber for hydraulic seals and automotive fuel systems. EPDM excels in water, steam, and outdoor applications. Outstanding ozone/UV resistance makes it ideal for weathering applications.

When should I use NBR instead of EPDM?

Use NBR for: Oil and fuel systems, hydraulic equipment, automotive seals, petroleum-based fluids. Use EPDM for: Water and steam systems, outdoor seals, roofing, automotive coolant systems, brake fluid.

Which has better chemical resistance: NBR or EPDM?

NBR has 353 chemicals rated Excellent (A) at 20°C, while EPDM has 426. Including Good (B) ratings, NBR is compatible with 444 chemicals and EPDM with 509.