.

Composition

Ter-polymer of VDF, HFP and TFE

Characters

Medium viscosity gumstock without incorporated curatives

Process Targets

Compression molding, calendering

Curatives

Bisphenol

Typical Properties (Data not for specification purposes)

Fluorine Content, %

68

Specific Gravity

1.86

Color

Silver gray, translucent

Solubility

Low molecular ketones and esters

Mooney Viscosity ML 1+10@121

48

Typical Properties of Vulcanizate (Data not for specification purposes)

Compound

phr

Polymer

100

MT Black (N990)

30

MgO

3

Ca(OH)₂

6

Phosphonium Accelerator

0.5

Dihydroxy Crosslinker

2.0

Curing Condition

Press

10min at 170

Oven

24h at 230

Typical Rheological Properties

Monsanto Moving Die Rheometer (MDR2000®)

100cpm, 0.5°Arc, 15 minutes, 177

ML, Minimum Torque, N m

0.32

ts2, Time to 2 inch-lb rise from minimum

155

t90, Time to 90% cure

430

MH, Maximum Torque, N m

1.95

Typcial Physical Properties

Press Cure 10 minutes @ 170

Post Cure 24 hours @ 230

Tensile, Mpa (ASTM D412)

13.5

Elongation at break, % (ASTM D412)

230

Hardness, Shore A (ASTM D2240)

77

Compression Set, %, [ASTM D395 Method B (Disc)]

Aged 70 hours @ 230

24