Krytoxo XHT for high-temperature applications

Citation

(2002), "Krytoxo XHT for high-temperature applications", Aircraft Engineering and Aerospace Technology, Vol. 74 No. 3. https://doi.org/10.1108/aeat.2002.12774cad.017

Krytoxo XHT for high-temperature applications

Keywords: Lubricants, Adhesion, Surfaces, Temperature

DuPont Performance Lubricants reports the recent launch of Krytox XHT, a full range of products said to be designed for extremely high-temperature applications with low-oil evaporation that extends the life of bearings in industrial applications. The business has also named Steve Johnston as the new sales contact for its Krytox range in the United Kingdom and Ireland.

Krytox XHT is described as a novel blend of low-volatility oils and additive and thickeners that increase adhesion to protect bearing surfaces that are subjected to high heat conditions. These lubricants allow systems to be operated above the limits of other high temperature lubricants.

The range was designed to meet the demands of industries experiencing production downtime due to extreme operating temperatures," said John Moriarty, market and business manager for DuPont Performance Lubricants and Release Systems. "Equipment downtime due to bearing failure is a major factor in productivity losses". These new greases have superior durability and will allow significant improvement in bearing life. In the past, high operating temperatures required bearing replacement and reapplication of lubrication. Krytox XHT extends bearing life andlasts significantly longer, minimising reapplication.

In addition, Krytox XHT greases are also stated to be durable in the most aggressive environments where temperatures reach extremes that exceed the capabilities of conventional lubricants. The Krytox XHT line of greases are available with useful temperature ranges up to 406°C (762°F) for continuous use, with temperature spikes at 427°C (800°F) when used with proper metallurgy and relubrication intervals.

Applications of Krytox XHT include aerospace, turbine temperatures are increasing to help achieve higher fuel efficiency. Many applications such as exhaust diverters, deicing systems, thrust nozzles and other components that are close to the higher temperatures are believed to be candidates for these products.

Krytox Performance Lubricants are based on space-age fluoropolymer technology providing over the broadest range of temperatures (-57°C (-70°F) to 406°C (762°F), with spikes up to 437°C (800°F). They are reported to be non-flammable and chemically inert. Krytox, is described as clean, white and non-migrating, and is said to be compatible with all elastomers and plastics. It stated not carbonise, enabling ease in equipment maintenance and facility cleanup.

Details available from: DuPont. Tel: 0800 587 2279; E-mail: steve.b.johnston@dupont.com ; website: http://www.krytox.com