Product description
Krytox® 143 series oils are clear, colorless, fluorinated synthetic oils that are nonreactive, nonflammable, safe in chemical and oxygen service, and are long-lasting. Krytox® is a perfluoropolyether (PFPE)—also called perfluoroalkylether (PFAE) or perfluoropolyalkylether (PFPAE)—with the following chemical structure:
F-(CF-CF2-O)n-CF2CF3
CF3 where n = 10–60
The polymer chain is completely saturated and contains only carbon, oxygen, and fluorine. On a weight basis, a typical Krytox® oil contains 21.6% carbon, 9.4% oxygen, and 69.0% fluorine. All standard grades of grease are thickened with Krytox® 2000 polytetrafluoroethylene PTFE, whose formula is (CF2-CF2)n. This special high efficiency
thickener has a melting point of 325°C (617°F) and has low molecular weight and submicron (0.2 m) particle size for higher performance in bearings.
Krytox® 240 series greases are white buttery greases with all of the same properties as the 143 series oils that they are made from, but they are in grease form.
Krytox® 250 series EP greases are black greases that contain molybdenum disulfide added as an extreme pressure additive for highly loaded gears and bearings.
Krytox® 283 series anticorrosion greases are white greases that contain sodium nitrite. These grades provide rust protection at ambient temperatures, corrosion protection at high temperatures, and antiwear protection.
