EPDM O-Rings | Simrit E454 NAS-1611 Peroxide-Cured EPDM 80 Duro

Our EPDM O-Rings made from Simrit E454 peroxide cured EPDM 80 durometer are built for customers who need dependable sealing in water, steam, glycol, brake fluid, and outdoor environments. This compound meets NAS 1611 requirements and delivers excellent resistance to heat aging, ozone, UV, and weathering, making it ideal for long service life in demanding applications. Peroxide curing provides improved compression set resistance and consistency compared to sulfur cured EPDM, which means fewer leaks, less downtime, and lower total cost of ownership for our customers. We stock and source these O-Rings to help you replace unreliable alternatives from large suppliers with responsive service, consistent quality, and fast turnaround so you can keep your operation running smoothly.