Chemours™Krytox® 143 series oils are clear, colorless,fluorinated synthetic oils that arenonreactive, nonflammable, safe in chemical and oxygenservice, and are long-lasting. Krytox® is a perfluoropolyether(PFPE)—also called perfluoroalkylether (PFAE) orperfluoropolyalkylether (PFPAE) The polymer chain iscompletely saturated and contains only carbon, oxygen, andfluorine. On a weight basis, a typical Krytox® oilcontains 21.6% carbon, 9.4% oxygen, and 69.0% fluorine.
All standard grades of grease are thickened with highefficiency PTFE, whose formula is (CF2-CF2)n. This specialhigh efficiency thickener has a melting point of 325°C (617°F)and has low molecular weight and submicron (0.2 μ) particlesize for higher performancein bearings.
Krytox® 240 series greases are white buttery greases with allof the same properties as our 143 series oils thatthey are made from, but they are in greaseform.
Krytox® 250 series EP greases are black greases thatcontain molybdenum disulfide added as an extremepressure additive for highly loaded gears andbearings.
Krytox® 283 series anticorrosion greases are white greasesthat contain sodium nitrite. These grades providerust protection at ambient temperatures, corrosion protection athigh temperatures, andantiwear protection.
Chemours™ Krytox® 240 AC, 240 AB and 240 AZ gr-1greases now have NSF approval for incidental foodcontact (H-1) in andaround food processing areas.
Krytox Aerospace Oil is available in 6 standardgrades
Aerospace Grade | 143AZ | 143AA | 143AY | 143AB | 143AC | 143AD |
Viscosity, cSt (20°C) | 40 | 85 | 150 | 230 | 800 | 1600 |
Vapor Pressure (Knudsen) 38°C (100°F) | 4 x 10E-4 | 1 x 10E-4 | 4 x 10E-5 | 5 x 10E-6 | 8 x 10E-8 | 6 x 10E-9 |