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TPE (Hytrel®) Backup Rings

TPE Back-Up Rings (Hytrel®)

TPE backups are manufactured from high quality thermoplastic polyester elastomer (TPE). This tough material is long wearing with very good abrasion resistance in both dynamic and static applications and improved extrusion resistance compared to standard FKM (Viton) or NBR backups. It has high temperature capabilities up to 275°F (135°C) along with a broad range of fluid compatibility including water based fluids. Molded of 55D Durometer TPEl, these back-up rings provide excellent extrusion resistance and tolerance to fluids such as phosphate esters, hydraulic oil and water. Stretched for installation, they return quickly to their original size for easy installation.
- 000 Series O-rings 0.070" - .050" Thick
- 100 Series O-rings 0.103" - .050" Thick
- 200 Series O-rings 0.139" - .050" Thick
- 300 Series O-rings 0.210" - .070" Thick
- 400 Series O-rings 0.275" - .105" Thick
NOTE: Sizes (Dash No.) corresponds to O-ring numbers.

We started as a simple online company taking care of a precious few people. Our circle of business friends has grown over the years and taking care of them is more satisfying than ever. We take care of our customers' Standard O-Rings, Metric O-Rings, Vulcanized O-Rings, and Custom O-Rings. Just place your O-Ring order online and we will take care of you too.

We are a family owned and operated Distributor and Manufacturer of O-Rings, O-Ring Kits, OSK™ O-Ring Service Kits, Hydraulic Seals, Adhesives, Lubricants, Braided Packings, Coatings, O-Ring Cord, Lathe Cut, Oil and Shaft Seals, Gaskets, Retaining Rings, Molded Packings, Seals, and Molded Rubber Products.

We serve many industries, including manufacturing, chemical processing, defense, power generation, agricultural, water treatment and filtration, hydraulics, fluid power, heavy truck, automotive, aerospace, oil and gas, medical and life sciences, food and beverage, electronics and industrial controls, refineries, and supply chain suppliers. Each industry and each customer have unique requirements that make them special. We love sharing customer stories and applications at our weekly store meeting.