VITON FKM26 series (viton A)
VIOTN FKM26 is the copolymer of vinylidene fluoride (VDF) and hexafluoropropylene ( HFP).
Technical data
Property | Value |
FKM2601 | FKM2602 | FKM2603 | FKM2604 |
A | B | C | A | B | A | B | C | D | A | B | C |
Gum | Density g/cm3 | 1.78~1.82 | 1.80~1.84 | 1.80~1.84 | 1.80~1.84 |
Mooney Viscosity, ML(1+10)121 | 20 ± 10 | 30 ± 10 | 40 ± 10 | 50 ± 10 | 60 ± 10 | 70 ± 10 | 80 ± 10 | 90 ± 10 | 100 ± 10 | 110 ± 10 | 140 ± 20 | 180 ± 20 |
Tensile strength, MPa, | 7.5 | 8.0 | 8.0 | 9.0 |
Elongation at break, % | 150 | 150 | 160 | 160 |
Vulcanizate | After aging 24 hr. at 275: Tensile strength, MPa, Elongation at break, % | 7.0 140 | 7.5 140 | 7.0 150 | 8.0 150 |
Compression Set, % ≥ 200X24h, compression rate 30% | 25 | 20 | 55 | 55 |
Solvent Resistance (1#aviation kerosene, 200 X 24hr, measured by weight increment), % | 5 | 5 | 5 | 5 |
Note: In the standard test formula, FKM2601 and FKM2602 adopt Bisphenol AF curing system, while FKM2603 and FKM 2604 use curing agent 3# . Recommended curing temperature: 170±5.
Main applications:
Widely used in aviation, automobile, petroleum and chemical industries, instruments and apparatus, architecture, etc.
Mainly used to produce sealing parts requiring good resistance to high temperature, oil and corrosion, such as O" rings, "V" rings, gasket, sealing bowl with metal bone, tube/hose, etc..
