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General Purpose Fluoroelastomer Base Polymer

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Viton FKM raw gum is raw material of viton rubber. We supply Chinese best quality of Viton FKM raw gum including Low Mooney, Middle Mooney and high Mooney grades.

FD26 serial FKM raw gum is one kind of copolymer composed of vinylidene fluoride (VDF) and hexafluoropropylene (HFP). It’s a standard type of FKM showing a good overall performance. You may find general properties of the material in below table.

Items

Grades

FD2601 FD2602 FD2603 FD2604 FD2605
Density (g/cm3) 1.82±0.02 1.82±0.02 1.82±0.02 1.82±0.02 1.82±0.02
Fluorine content (%) 66 66 66 66 66
Mooney Viscosity (ML (1+10)121℃) 25 40~45 60~70 >100 150
Tensile strength after post cure (Mpa) 24h, 230℃ ≥11 ≥11 ≥11 ≥13 ≥13
Elongation at break after post cure (%)24h, 230℃ ≥180 ≥150 ≥150 ≥150 ≥150
Compression set (%) 70h, 200℃

≤25

FD24 serial FKM raw gum is one kind of terpolymer composed of vinylidene fluoride (VDF), hexafluoropropylene (HFP) and tetrafluoroethylene (TFE). Terpolymers have a higher fluorine content compare to copolymers (typically between 68 and 69 weight percent fluorine), which
results in better chemical and heat resistance. You may find general properties of the material in below table.

FD2462 FD2463 FD2465 FD2465L FD2465H
Fluorine Content 68.5 68.5 68.5 65 69.5
Density (g/cm3) 1.85 1.85 1.85 1.81 1.88
Mooney Viscosity (ML (1+10)121℃) 70±10 40±10 45±15 50±10 40±20
Tensile strength after post cure (Mpa) 24h, 230℃ ≥11 ≥11 ≥11 ≥11 ≥11
Elongation at break after post cure (%)24h, 230℃ ≥180 ≥180 ≥180 ≥180 ≥180
Compression set (%) 200℃ 70H compress 20% ≤30% ≤30% ≤30% ≤30% ≤40%
Oil resistance (200℃ 24H) RP-3 oil ≤5% ≤5% ≤5% ≤5% ≤2%
Glass transition temperature (TG) >-15℃ >-15℃ >-15℃ >-21℃ >-13℃
Water content (%) ≤0.15 ≤0.15 ≤0.15 ≤0.15 ≤0.15

Package and Storage

Fluoroelastomer are first sealed in PE bag-weights 5kgs per bag, then put into carton box. Net weight per box: 25kgs

Fluoreolastomer should be stored in a cool, dry and ventilated place. Shelf life is 24 months since production date.


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