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DuPont Performance Polymers Kalrez® Spectrum™ 7090 Fluoroelastomer

Category Polymer , Thermoset , Fluoropolymer, TS , Thermoset Fluoroelastomer , Rubber or Thermoset Elastomer (TSE)
Manufacturer DuPont Performance Polymers (Former DuPont Elastomers)
Trade Name Kalrez®
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF DuPont Performance Polymers Kalrez® Spectrum™ 7090 Fluoroelastomer.pdf
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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).
Mechanical Properties Metric English Comments
Hardness, Shore A 90
90
ASTM D2240
Tensile Strength at Break 22.75 MPa
3300 psi
ASTM D1414, ASTM D412
Elongation at Break 75 %
75 %
ASTM D1414, ASTM D412
50% Modulus 0.01591 GPa
2.308 ksi
ASTM D1414, ASTM D412
Compression Set 12 %

@Temperature 204 °C,
Time 252000 sec
12 %

@Temperature 399 °F,
Time 70.0 hour
ASTM D1414 and ASTM D395B
23 %

@Temperature 260 °C,
Time 252000 sec
23 %

@Temperature 500 °F,
Time 70.0 hour
ASTM D1414 and ASTM D395B
Thermal Properties Metric English Comments
Maximum Service Temperature, Air 325 °C
617 °F
DuPont Test Method
Minimum Service Temperature, Air -5.00 °C
23.0 °F
Retraction Temperature, Tr10; ASTM D1329
Descriptive Properties Value Comments
Color Black
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