DuPont Mobility and Materials Kalrez® Spectrum™ 7090 Fluoroelastomer

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DuPont Mobility and Materials Kalrez® Spectrum™ 7090 Fluoroelastomer
Categories:	Polymer; Thermoset; Fluoropolymer, TS; Thermoset Fluoroelastomer; Rubber or Thermoset Elastomer (TSE)
Material Notes:	DuPont™ Kalrez Spectrum™ 7090 perfluoroelastomer parts are specifically targeted for use in applications requiring high hardness/higher modulus properties. These specialty black parts have excellent mechanical properties including compression set resistance, seal force retention, response to temperature cycling effects and rapid gas decompression resistance. Kalrez Spectrum™ 7090 perfluoroelastomer parts are well suited for both static and dynamic sealing applications, especially applications that require extrusion resistance at higher temperatures. They also offer outstanding thermal stability and chemical resistance. A maximum continuous service temperature of 325 C (617 F) is suggested. Short excursions to higher temperatures may also be possible. Performance Features/Benefits Higher hardness and modulus Exceptional thermal stability and compression set resistance Outstanding seal force retention properties and response to temperature cycling effects Excellent mechanical properties Lower coefficient of thermal expansion (CTE) versus other Kalrez® parts thus minimizing the need to increase the free volume of the seal gland when upgrading from fluoroelastomers (FKM) to perfluoroelastomers (FFKM). Information provided by DuPont
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Available Properties

Density, ISO 1183
Hardness, Shore A, ASTM D 2240
Elongation at Break, ASTM D 412
50% Modulus, ASTM D 412
Compression Set, ASTM D 395B, Pellet (Type 1)
Compression Set, ASTM D 1414, O-ring (AS568-214)
CTE, linear, ISO 11359-1/-2
Maximum Service Temperature, Air, DuPont proprietary test
Minimum Service Temperature, Air, DuPont proprietary test
Minimum Service Temperature, Air, ASTM D 1329, Retraction temperature TR-10

Property Data

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Manufacturer Notes:
DuPont Performance Polymers (Former DuPont Elastomers)

Category Notes
Plastic

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