Viton® / FKM (Fluorocarbon rubber)
Fluorocarbon elastomers have grown to major importance in the seal industry. Due to its wide range of chemical compatibility, temperature range, low compression set, and excellent aging characteristics, fluorocarbon rubber is the most significant single elastomer developed in recent history. Fluorocarbon elastomers are highly fluorinated carbon-based polymers used in applications to resist harsh chemical and ozone attack. The working temperature range is considered to be -26°C to +205°/230°C (-15°F to +400°/440°F). But for short working periods it will take even higher temperatures. Special compounds having improved chemical resistance are also available with new types always being developed. Generally speaking, with increasing fluorine content, resistance to chemical attack is improved while low temperature characteristics are diminished. There are, however, specialty grade fluorocarbons that can provide high fluorine content with low temperature properties.
Fluorocarbon O-rings should be considered for use in aircraft, automobile and other mechanical devices requiring maximum resistance to elevated temperatures and to many fluids. FKM (FPM, Viton®, Fluorel®) resist mineral oils and greases, aliphatic, aromatic and also special chlorinated hydrocarbons, petrol, diesel fuels, silicone oils and greases. It is suitable for high vacuum applications. Many fluorocarbon compounds have a higher than normal mold shrinkage rate, molds for fluorocarbon products are often different from molds for Nitrile.
| Compound number | Elastomer | Hardness IRHD ±5 | Description / Application | Certificates | Colour | Temp °C |
|---|---|---|---|---|---|---|
| Genuine Viton® A 514329 (478kB) |
FKM |
60 |
Good compression set. Resistance to oils, fuels, lubricants, most mineral acids, aliphatic and aromatic hydrocarbons |
black |
-20 / +200 |
|
| Viton 514660 black (511kB) |
FKM |
60 |
Good compression-set, migration tested, produced with high purity furnace black N772 |
FDA 177.2600, ADI, EC1935/2004 |
black |
-15 / +200 |
| FKM 514308 (424kB) |
FKM | 70 | Standard industrial cord quality | black | -20 / +200 | |
| Genuine Viton® GLT 514115 (482kB) | FKM | 70 | Original Viton GLT for low temperatures | FDA |
black | -40 / +200 |
| Genuine Viton® 514670 (511kB) | FKM | 70 | Food & Pharma / Migration tested | FDA 177.2600 ADI, EC1935/2004 |
black | -20 / +200 |
| Genuine Viton® 514642 (511kB) |
FKM | 70 | Food & Pharma | FDA 177.2600 ADI, EC1935/2004 |
green | -20 / +200 |
| Genuine Viton® 514672 (511kB) |
FKM | 70 | Food & Pharma / Migration tested | FDA 177.2600 ADI, EC1935/2004 |
white | -15 / +200 |
| Genuine Viton® 514674 (511kB) | FKM | 70 | Food & Pharma / Migration tested | FDA 177.2600 ADI, EC1935/2004 |
blue | -20 / +200 |
| FKM 514328 (461kB) |
FKM |
70 |
resistance to oils, fuels, lubricants, most mineral acids, aliphatic and aromatic hydrocarbons |
FDA CFR 21 177-2600, 3A 18-03 class1, ADI, EC1935/2004, metal detectable |
blue |
-15 / +204 |
| Genuine Viton® 51414 X-ring black (532kB) | FKM | 75 | low compression set | black | -20 / +200 | |
| 51414 black (73kB) |
FKM |
75 |
General purpose. Good compression set |
black |
-20 / +200 |
|
| Genuine Viton® A 51414 green (478kB) | FKM | 75 | General purpose Good compression set |
green | -20 / +200 | |
| FKM 514010 (462kB) | FKM | 75 | Food & Pharma / Extraction tested | FDA 21 CFR 177.2600 class1 ADI, 3A, USP classVI, EC1935/2004 |
white | -20 / +200 |
| 514323 (491kB) |
FKM |
75 |
specially formulated for bio-fuels. low temp. resistance |
black |
-20 / +200 |
|
| 514206 (479kB) | FKM | 75 | made according to strict guidelines of DuPont Performance Elastomers or Solexis. Constant high quality level |
black | -20 / +200 | |
| Genuine Viton® A 514302 (478kB) | FKM | 75 | Low compression set cord and O-ring quality Also as Vulc-O-ring | brown | -20 / +200 | |
| Genuine Viton® GF 514141 (529kB) |
FKM | 75 | Original Viton GF-Terpolymer | black | -10 / +200 | |
| Genuine Viton® A 514304 (511kB) | FKM | 75 | Food & Pharma / Low compression set | FDA 177.2600, 3A, ADI, EC1935/2004 |
white | -20 / +200 |
| Genuine Viton® A 514172 (511kB) |
FKM | 75 | Low compression set / FDA quality | FDA 177.2600, ADI, 3A, EC1935/2004 |
black | -20 / +200 |
| Genuine Viton® A 514641 (511kB) |
FKM | 70 | Migration tested/ FDA quality | FDA 177.2600, ADI, EC1935/2004 |
black | -20 / +200 |
| Genuine Viton® A 514306 (478kB) |
FKM | 75 | Low compression set quality Vulc-O-ring | green | -20 / +200 | |
| Genuine Viton® GFLT 514712 (478kB) |
FKM | 75 | Good compression set. Best low temperature resistance. Optimal chemical resistance |
black | -30 / +200 | |
| FKM 514312 (462kB) | FKM | 75 | Food & Pharma / Extraction tested | FDA 21 CFR 177.2600 class1, USP XXIII, class VI, 3A Sanitary Standards classI, Certified by Toxicon Laboratory, EC1935/2004 |
black | -20 / +204 |
| FKM 514326 (425kB) |
FKM |
specially designed for very demanding sealing solutions in solvents. This compound can withstand many other aggressive chemicals |
XTR-FLUORx |
black |
-15 / +200 |
|
| FKM 514322 (425kB) |
FKM |
75 |
designed for high demanding sealing applications in agressive chemicals at low temperature |
black |
-40/ up to +200 |
|
| Genuine Viton® Extreme ETP 514016 (478kB) | FKM | 75 |
Paint and solvent industry Optimal chemical industry | black | -20 / +200 | |
| 514301 (424kB) |
FKM | 80 | based on a FKM copolymer |
black | -20/ +200 |
|
| Viton 514682 white (511kB) |
FKM |
80 |
Good compression-set, migration tested |
FDA 177.2600, ADI, EC1935/2004 |
white |
-15 / +200 |
| Viton GF-S 514683 black (512kB) |
FKM |
80 |
Best chemical resistance of Viton family |
FDA 177.2600, ADI, EC1935/2004 |
black |
-10 / +200 |
| Genuine Viton® B 514021 (478kB) |
FKM | 80 |
For better chemical resistance | black | -20 / +200 | |
| Genuine Viton® 514680 (226kB) | FKM | 80 | Food & Pharma / Migration tested |
FDA 177.2600, ADI, EC1935/2004 |
black | -20 / +200 |
| Genuine Viton 514327 (490kB) |
FKM |
80 |
Specially formulated for bio-fuels. Resistance to bio-fuel. Good compression-set |
black |
-20 / +200 |
|
| Genuine Viton® 51480 (478kB) |
FKM | 80 | General purpose | green | -20 / +200 | |
| Genuine Viton® A 514320 (528kB) | FKM | 90 | General purpose Low compression set | black | -20 / +200 | |
| Genuine Viton® A 514309 (528kB) | FKM | 90 | Low compression set Also as Vulc-O-ring | black | -20 / +200 | |
| Genuine Viton® B 514204 (528kB) |
FKM | 90 | Explosive decompression grade | black | -15 / +200 | |
| Teflex Viton® (605kB) |
FKM |
Excellent chemical resistance, comparable with that of PTFE, Good compression set |
FDA 177.2600 USP class VI, ADI, EC1935/2004 | Other colours and elastomers on demand |
-20 / +200 | |
| Genuine Viton® 514690 (511kB) |
FKM | 90 | Food & Pharma / Migration tested | FDA 177.2600, ADI, EC1935/2004 |
black | -20 / +200 |
| Genuine Viton® A 514694 (511kB) |
FKM | 90 | Food & Pharma / Migration tested | FDA 177.2600, ADI, EC1935/2004 |
blue | -20 / +200 |
| FKM | 90 | recommended for down hole oil patch applications. designed to have excellent resistance to extrusion and explosive decompression |
black | -15 / +200 | ||
| 514331 (511kB) |
FKM | 70 | General purpose | FDA, USP, ADI |
black | -15 / +200 |
| 514332 (427kB) |
FKM | 45 |
Specially for low sealing forces |
Soft | black | -15 / +200 |
| Viton ETP 514324 (516kB) |
FKM | 75 | Food & Pharma | FDA, USP, ADI |
black | -20 / +200 |
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Viton® is a registered trademark of DuPont Performance Elastomers