Composition

Di-polymer of VDF and HFP

Characters

Medium to high viscosity gumstock without incorporated curatives, excellent process properties

Process Targets

Compression and transfer molding

Curatives

Bisphenol

Typical Properties (Data not for specification purposes)

Fluorine Content, %

66

Specific Gravity

1.82

Color

White or light amber

Solubility

Ketones and esters

Mooney Viscosity ML 1+10@121

80

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, 6 minutes, 177

ML, Minimum Torque, N m

0.57

ts2, Time to 2 inch-lb rise from minimum

055

t90, Time to 90% cure

145

MH, Maximum Torque, N m

3.20

Typcial Physical Properties

Press Cure 10 minutes @ 170

Post Cure 24 hours @ 230

Tensile, Mpa (ASTM D412)

14.5

Elongation at break, % (ASTM D412)

200

Hardness, Shore A (ASTM D2240)

77

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

Aged 70 hours @ 200

18