Perfluoroelastomer FFKM Rubber O Ring
FFKM O rings have excellent resistance to extreme temperatures, -10°C to +260°C. Some special compounds can operate beyond 316°C. FFKM O ring are resistant to nearly all chemicals. These include inorganic acids, alkalines, ketones, esters, alcohols, fuels, and hot waters. They can be used for applications in aggressive chemical environments, FFKM used in highly aggressive chemical processing, semiconductor wafer fabrication, pharmaceutical, oil and gas recovery, and aerospace applications. The long-term, proven performance of ffkm parts can mean less frequent seal changes, repairs and inspections, increasing process and equipment uptime for greater productivity and yield.FFKM O ring also provides low outgassing in vacuum-sealing application
Advantages
• Excellent temperature resistance up to 316 °C
• Extraordinary chemical resistance
• Retains elasticity similar to FKM
• Reliable and long term sevice
• Good vacuum performance
• Good aging resistance
• FDA standard can be., etc
Application
• High Vacuum Technology and Semi-conductor industries
• Almost all chemical applications
• Food and medicine application
• Pump Reactor Blender Valve
• Mechanical Seal
• Aerospace fields
FFKM Properties
Item |
FFKM |
Test Method |
Color |
Black/white |
|
Specific gravity |
1.5g/cm3 |
ASTM D297 |
Hardness |
40°-80° Shore A |
ASTM D2240 |
Tensile strength |
7.6 MPa (min) |
ASTM D412 |
Elongation at break |
150% (min) |
ASTM D412 |
Size |
Varies |
|
Compression set 204°C 70 hrs |
Permanent set 15%(max) |
ASTM D 395B |
Low temperature resistance |
-10°C |
ASTM D1329 |
Temperature range |
-10°C to +316°C |
ASTM D2000 |
Key: = Excellent , = Good, = Fair, X = Not Recommended