DuPont Mobility and Materials Kalrez® 4079AMS FFKM Perfluoroelastomer

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DuPont Mobility and Materials Kalrez® 4079AMS FFKM Perfluoroelastomer (discontinued **)
Categories:	Polymer; Thermoset; Fluoropolymer, TS; Thermoset Fluoroelastomer; Rubber or Thermoset Elastomer (TSE)
Material Notes:	Kalrez® perfluoroelastomer parts are made solely by DuPont Dow Elastomers and marketed directly to the aircraft engine industry. An AMS 7257 specification grade Kalrez® 4079 is most commonly preferred for aircraft applications. Each part is packed individually with complete traceability as to production date, size, properties, etc. Information provided by manufacturer.
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Mechanical Properties	Metric	English	Comments

Hardness, Shore A	35 - 85 @Temperature 225 °C	35 - 85 @Temperature 437 °F
Tensile Strength, Ultimate	17.24 - 20.68 MPa @Temperature 225 °C	2500 - 2999 psi @Temperature 437 °F
Elongation at Break	150 - 160 % @Temperature 225 °C	150 - 160 % @Temperature 437 °F
50% Modulus	2.41 - 2.585 MPa @Strain 50 %	2.41 - 2.585 MPa @Strain 50 %	at 225°C
Compression Set	30 - 40 % @Temperature 225 °C	30 - 40 % @Temperature 437 °F

**
Materials flagged as discontinued () are no longer part of the manufacturer’s standard product line according to our latest information. These materials may be available by special order, in distribution inventory, or reinstated as an active product. Data sheets from materials that are no longer available remain in MatWeb to assist users in finding replacement materials.

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PDVD051 / 33870

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