Description: Fluorosilicone rubber master-batch compound with very low compressionset and good oil resistance, vulcanizing on heating after addition of avulcanizing agent.
Special properties:
Ø Excellent oil resistance and outstanding polar solvent resistance
Ø Easily processed and easily pigmented
Ø High resilience
Ø Very low compression set
Ø Good heat stability, up to 230°C
Ø Good oil resistance
Main applications:
Ø Mainly used in automobile industry, aerospace industry, petroleumchemical industry and
Ø military industry.
Ø Suitable for applications as sealing materials for petroleum oil,lubricant oil, hydraulic oil, transformer oil, and apolar chemical reagents in lowtemperature and/or high temperature environments.
Ø Suitable to produce molded, extruded and calendered parts includingO-rings, gaskets, fuel-line quick-connect seals, oil seals, sealing strips,diaphragms, membranes, valves, hydraulic and electrical clamp blocks.
Characteristics:
Type (according to GB/T5576-1997)................................FVMQ
Natural color.......................................................translucent,smooth surface, no impurities
Curing Condition:
After addition of 1.2% of 2.5-dimethyl bis-(tertiobutyl peroxy) 2.5-hexane (45%) and vulcanization for 5 min. at 170°C, withpost curing at 200℃×4.
Mechanical properties：
Item | Testing | Unit | Technical date |
FS2230U | FS2240U | FS2250U | FS2260U | FS2270U | FS2280U |
Density | ASTM D792 | g/cm3 | 1.40 | 1.42 | 1.43 | 1.45 | 1.47 | 1.48 |
Hardness Shore A | ASTM D2240 |
| 30 | 39 | 50 | 59 | 71 | 79 |
Tensile Strength | ASTM D412 | MPa | 9.7 | 10.4 | 10.4 | 10.1 | 10.0 | 9.1 |
Elongation | ASTM D412 | % | 498 | 410 | 358 | 295 | 254 | 200 |
Tear Strength | ASTM D 624 B | KN/m | 17 | 17 | 18 | 17 | 18 | 17 |
Rebound resilience | ASTM D1054-2002 | % | 30 | 27 | 26 | 26 | 26 | 25 |
Compression Set (22hr/177℃) | ASTM D395 Method A | % | 7.5 | 6.2 | 6.8 | 6.9 | 6.9 | 7.4 |
Fuel C Volume Swell (23℃×70hr) | Hardness change |
| -6 | -8 | -10 | -11 | -11 | -11 |
Tensile strength change | % | -53 | -52 | -40 | -36 | -33 | -27 |
Elongation change | % | -45 | -36 | -30 | -26 | -21 | -19 |
Volume change | % | +25 | +20 | +18 | +17 | +16 | +15 |
903# Oil Volume Swell (23℃×70hr) | Hardness change |
| -7 | -6 | -6 | -6 | -5 | -3 |
Tensile strength change | % | -30 | -28 | -25 | -19 | -18 | -18 |
Elongation change | % | -26 | -25 | -20 | -13 | -14 | -14 |
Volume change | % | +3.5 | +3.0 | +3.0 | +3.0 | +2.5 | +2.1 |
Packaging：25 kg per cardboard boxes.
Storage and shelf life:
FS 2200 U series may be stored in its original unopened packaging at a temperature below 40°C for up to 12 months as from the date of manufacture.
