DuPont Mobility and Materials Kalrez® AeroSeal™ 7800 Fluoroelastomer

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DuPont Mobility and Materials Kalrez® AeroSeal™ 7800 Fluoroelastomer (discontinued **)
Categories:	Polymer; Thermoset; Fluoropolymer, TS; Thermoset Fluoroelastomer; Rubber or Thermoset Elastomer (TSE)
Material Notes:	Kalrez® AeroSeal™ 7800* perfluoroelastomer parts are a specialty black product that meets the requirements of Aerospace Material Specification (AMS) 7257. It offers outstanding thermal stability and compression set resistance along with excellent seal force retention properties. It also offers excellent resistance to High Thermo-Oxidative Stability (HTS) gas turbine engine lubricating oils and has excellent response to temperature cycling effects. In some high temperature aerospace applications, fluoroelastomers and perfluoroelastomers can cause corrosion in the stainless steel and titanium O-ring grooves. In DuPont tests, Kalrez® AeroSeal™ 7800 parts minimized the corrosion of the titanium and stainless steel versus a typical high temperature perfluoroelastomer seal. (Figure 1) Kalrez® AeroSeal™ 7800 parts have good mechanical properties and are well suited for both static and dynamic sealing applications. A maximum temperature of 325°C (617°F) is suggested. Short excursions to higher temperatures may also be possible. Performance Features/Benefits Outstanding thermal stability and compression set resistance Excellent seal force retention properties Excellent resistance to high thermo-oxidative stability (HTS) gas turbine engine lubricating oils Excellent response to temperature cycling effects Excellent mechanical properties Low corrosion on metals after exposure to high temperature
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Available Properties
Hardness, Shore A, ASTM D2240 Tensile Strength at Break, ASTM D1414, ASTM D412 Elongation at Break, ASTM D1414, ASTM D412 100% Modulus, ASTM D1414, ASTM D412 Compression Set, ASTM D1414 and ASTM D395B Compression Set, ASTM D1414 and ASTM D395B Maximum Service Temperature, Air, DuPont Test Method Minimum Service Temperature, Air, ASTM D1329, Retraction Temperature, Tr10

Property Data

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Manufacturer Notes:
DuPont Performance Polymers (Former DuPont Elastomers)

Category Notes
Plastic

**
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