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.

AHPSeals Proprietary MaterialMaterial PropertiesApplications
Permachem 4200High-performance engineered thermoplastic with excellent tolerance for high temperatures, and provides low wear and superb chemical properties.

FDA compliant.
Used as an anti-extrusion ring material or back-up ring where a high modulus polymer is required to resist high pressures or loads.
Permachem 5600A proprietary polymeric alloy capable of performing under severe stress conditions at continuous temperatures up to 430°F.
This material has excellent tolerance dimensional stability over its temperature range.
It is used as an anti-extrusion ring or bushing where high pressure occurs at elevated temperatures. It is traditionally used as a high-pressure back-up ring material on HPHT seals.
Permachem 5800Permachem 5800 is a proprietary polymeric alloy capable of performing under severe stress conditions at continuous temperatures up to 750°F.It is used as an anti-extrusion ring or bushing where high pressure occurs at elevated temperatures. It is traditionally used as a high-pressure back-up ring material on HPHT seals.
Permachem 5962A creep-resistant high purity thermoplastic. Almost chemically inert, low gas permeability.
FDA, NSF 51 and 61 and USP class 6-compliant.
For use in chemical processing, semi-conductor manufacturing, fire safe components and DL water systems.
Permachem 6140A creep-resistant filled PTFE material that offers good extrusion resistance, low friction, low wear and superb chemical properties.For use as a seal material for hydraulic seals, back-up rings, valve seats and seals, and machined components, as well as low-friction wear bands for light duty reciprocating cylinders, shock absorbers and pumps.
Permachem 6145A filled PTFE for use as a low-friction guide tape material that offers low friction, low wear and superb chemical properties.For use with light-duty reciprocating cylinders, shock absorbers and pumps.
Permachem 6150An increased creep-resistant filled PTFE material that offers low friction, low wear and superb chemical properties.For use as a higher-pressure seal material for hydraulic seals, back-up rings, valve seats and seals, and machined components, as well as low-friction wear bands for light-duty reciprocating cylinders, shock absorbers and pumps.
Permachem 6151A highly creep-resistant filled PTFE material that offers low friction, low wear and superb chemical properties.For use as a material for guide rings, back-up rings, valve seats and seals, and machined components, as well as low-friction wear bands for light-duty reciprocating cylinders, shock absorbers and pumps.
Permachem 6233A proprietary filled PTFE with increased hardness and increased thermal conductivity that is suitable for use in water and is compatible for use with stainless steel shafts. Its self-lubricating properties allow for use in dry conditions.
This material offers low friction, low wear and superb chemical properties.
For use as a seal material for rotary and linear seals for high-speed, high-temperature, and low-friction applications.
Permachem 6234A proprietary filled PTFE with increased flex and lower coefficient of thermal expansion.
Increased hardness leads to lower creep.
This material offers low friction, low wear and superb chemical properties.
For use as a seal material for rotary and linear seals for high-speed, high-temperature, and high-pressure or large-gap applications.
Permachem 6235A proprietary filled PTFE with excellent higher-temperature performance and improved wear against soft shaft materials. This material offers low friction, low wear and superb chemical properties.
FDA compliant.
For use as a seal material for rotary and linear seals for soft shaft materials, low-friction applications and gas applications.
Permachem 6643A proprietary filled PTFE with low friction and excellent wear properties. Increased mechanical strength and creep resistance make this ideal for high pressure, fast strokes. This material offers low friction, low wear and superb chemical properties.For use as seal materials for rotary and linear seals where high wear rates are traditionally an issue.
Material of choice for dry-running high-pressure plunger pumps.
Permachem 8361A high molecular weight polymer offering lower gas permeability. This material offers low friction, low wear and superb chemical properties.
FDA compliant.
For use as a seal material for rotary and linear seals for food, medical and pharmaceutical applications, as well as a good choice for vacuum pumps.

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.