Besides seal design, the proper material choice is critical for maximum seal performance.  American High Performance Seals provides a wide range of superior performing material options to meet the full range of  industry’s most challenging operating conditions including fluids, pressures, surface speeds and temperatures.

When selecting the best material for a sealing application, the following need to be considered:

  • Thermal capability
  • Chemical and fluid compatibility
  • Extrusion resistance
  • Low friction and wear
  • Abrasion resistance

Please consult engineering or call 1-800-283-7140 for advice.


Standard materials
Proprietary materials (Duralast™, Duraloy™, Permachem™)

AHPSeals CodeTypical Application Service
Range °F (°C)
High-Performance PolyurethaneP101Oil & water based hydraulics, highly abrasion, extrusion, and hydrolysis resistant-22°F to 257°F
(-30°C to 125°C)
Self-Lubricated High-Performance Polyurethane P104Reduced break-out force and stick slip in hydraulic systems pressurized when static-22°F to 257°F
(-30°C to 125°C)
FDA High-Performance PolyurethaneP103Dynamic seals for food, pharmaceutical, and medical industries-22°F to 257°F
(-30°C to 125°C)
Nitrile (Nbr)N101Oil and water/glycol-based hydraulics-13°F to 212°F
(-25°C to 100°C)
Hydrogenated Nitrile (H-Nbr)N102Environmentally friendly & water/glycol-based hydraulics-13°F to 302°F
(-25°C to 150°C)
Viton®V101Chemically aggressive fluids and high temperatures-4°F to 410°F
(-20°C to 210°C)
Fluorosilicone Rubber (FVMQ)V201Static seals for fuel and diester-based lubricants with high heat-100°F to 347°F
(-74°C to 175°C)
Ethylene-Propylene-Diene Rubber (EPDM)E101Hot water and steam applications, as well as glycol-based brake fluids and fire-safe fluids-58°F to 266°F
(-50°C to 130°C)
Silicone RubberS101Static seals at high and low temperatures -67°F to 410°F
(-55°C to 210°C)
Hytrel®P501High-temperature heavy duty hydraulics-40°F to 302°F
(-40°C to 150°C)
Aflas®F101Aggressive oils, lubricants, coolants and fire-resistant hydraulic fluids5°F to 410°F
(-15°C to 210°C)
Kalrez®F201Static seals for aggressive chemicals, steam, and high temperatures-40°F to 500°F
(-40°C to 260°C)
Nylon®L101Guide rings, bearings, and back-up rings in hydraulic systems-40°F to 248°F
(-40°C to 120°C)
Nylatron®L301Reduced-friction guide rings and bearings in hydraulic systems -40°F to 248°F
(-40°C to 120°C)
AcetalM101Guide rings, bearings, and back-up rings for high water-based hydraulics-58°F to 230°F
(-50°C to 110°C)
UHMWPEU101Seals and guides in food, pharmaceutical, medical and paint industries -328°F to 176°F
(-200°C to 80°C)
PTFE® VirginT101Low friction, aggressive chemicals, food, pharmaceutical, and medical industries-328°F to 500°F
(-200°C to 260°C)
PTFE® filledTxxxLow-friction, seals for aggressive chemicals, and wide temperature ranges -328°F to 500°F
(-200°C to 260°C)
PEEKH101Guide rings, bearings, and back-up rings for high temperatures or aggressive chemicals-70°F to 480°F(-57°C to 250°C)

Please consult engineering or call 1-800-283-7140 for advice.

Proprietary Materials

There are many applications that require special material properties to enable them to achieve maximum performance. These properties may allow increased performance in a traditional application, or enable a seal to meet the needs of a very specialized application. The development of these proprietary materials has allowed American High Performance Seals to further push the seal performance envelope, and aid our customers to reach new performance goals with their equipment.


AHP Seals’ proprietary materials fall into three groups:

Duralast™ Materials

Duralast materials are specially formulated elastomers developed to offer targeted media compatibility, high functionability in extreme operating conditions, or simply extend service life of critical equipment, all while maintaining the excellent flexibility and ductile properties that make elastomers such good sealing materials.

Duraloy™ Materials

Duraloy materials are specially formulated engineering plastics for use both as seals and as ancillary devices such as wear rings or high-pressure anti-extrusion rings. Duraloy materials possess the strength and wear properties needed to function under higher pressure and high temperatures, as well as low friction, and/or wider chemical resistance.

Permachem™ Materials

Permachem materials are a wide range of specialty ultra-high-performance engineering plastics for use as sealing materials. Most of these materials were specially developed to meet the unique needs of a specific industry or application. Although in many cases a Permachem grade has allowed our customers to make new developments, the vast majority of Permachem grades were actually developed to simply extend seal service life to periods that were long beyond the current norm.


Also available: A full line of ultra-high performance plastic materials such as
Fluorosint®, Torlon®, Duratron®, Ryton®, PPS, Celazole® and Vespel®

All mentioned trade names are the property of their respective companies

Important Note: Maximum/minimum temperatures and other operating limits listed on this website or otherwise provided by American High Performance Seals can vary greatly depending on seal configuration, media, operating temperatures, pressures, surface speed, dynamic running surface finish and working environment.  Seals cannot be operated at their upper pressure, speed and/or temperature ratings at the same time. For longer seal life expectancy, do not operate your seal beyond 75% of any of its operating limits. Please consult engineering or call 1-800-283-7140 for advice.

American High Performance Seals assumes no obligation or liability for any advice furnished or results obtained with respect to these products. All such advice is given and accepted at the buyer’s risk. This information, based on our experience, is offered as part of our service to customers. It is intended for use by persons having technical skill, at their own discretion and risk. We do not guarantee favorable results, and we assume no liability in connection with its use.

Any purchases resulting from information provided by American High Performance Seals, Inc., including proposals, recommendations and quotes, are subject to “AHPSEALS TERMS AND CONDITIONS OF SALE.”