Krytox 157 FSH Oil | Performance Lubricant that serves as a surfactant
Effective in surface pretreatment
Krytox 157 FSH Oil is a functionalized version of the DuPont series of Krytox fluorinated oils that acts as a surfactant. The functionality is a carboxylic acid group located on the terminal fluoromethylene group of poly(hexafluoropropylene oxide). Krytox 157 FSH is available in two relatively broad molecular weight ranges designated as low and high with the following typical properties. Like the other Krytox fluorinated oils, Krytox 157 FSH is insoluble in most common organic solvents. It is also nonflammable.
Decarboxylation occurs on heating above about 170 °C (338 °F) and becomes vigorous at 200 °C (392 °F). The product formed appears to be a mixture, but is mainly a hydro-end-capped version of Krytox fluorinated oil. The decarboxylation of its alkali metal salts in the presence of water occurs at lower temperatures and yields essentially pure polymers end-capped with hydrogen. Krytox 157 FSH has been effective in surface pretreatment of magnetic recording discs prior to the application of a Krytox fluorinated lubricant. It is postulated that the surfactant is more rigidly attached on the surface through its functional group and that its fluoroalkylether tail attracts the identical molecular structure of Krytox fluorinated oil, resulting in more tenacious surface adhesion of this lubricant.
Krytox™ is a trademark of the Chemours Company FC, LLC.
The recommendation made here with and the information set forth with respect to the performance or use of our products are believed, but not warranted to be accurate. The products discussed are sold without warranty, as to fitness or performance, express or implied and upon condition that purchasers shall make their own test to determine suitability of such products for their particular purposes. Likewise, statements concerning the possible uses of our products are not intended as recommendations to use our products in the infringement of any patent.