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Polymers

FLUOROSILICONE (FVMQ)

Fluorinated silicones provide chemical properties similar to those of fluorinated organic elastomers. This property provides excellent resistance to hydrocarbon fuels, petroleum oils and silicone fluids.

Fluorosilicones provide a much wider operational temperature range than FKMS (-57 to 205ºC; -70 to 400ºF). Many applications for fluorosilicones are in synthetic oils, gasoline and even extended fuels since its low temperature performance is much better than that of FKMS.

Compounds 70154, 70155, 70156A, 70157

(Blue Bubble)  Good oil and compression set resistance
(Blue Bubble)  Low temperature operation
(Blue Bubble)  Meets MIL-R-25988 specification
(Blue Bubble)  Good fuel and extended (alcohol) fuel resistance

Tensile

Oil Aging
Volume
Swell

(Change %)
70hr at
150ºC/302ºF

Fuel Aging
Volume Swell
(Change%) 70hr at
23ºC/74ºF

Compound

MPa

psi

Elongation
(%)

Hardness Shore A

ASTM
#1

ASTM
#3

Ref fuel C

70154

6.9

1000

300

40

-1

+3

+19

70155

6.9

1000

450

50

+1

+3

+21

70156A

6.9

1000

170

60

-1

+2

+15

70157

9.3

1350

170

70

-1

+2

+19

Note: Data provided in tables are typical values. Please consult a Seal Company Representative for specific applications.

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