Krytox™ XHT-750 is a specially engineered PFPE-based oil (738 cSt, 40°) for extreme high-temperature applications up to 662°F.
Krytox™ XHT-750 is a highly engineered perfluoropolyether (PFPE) based synthetic oil with low evaporation rates for extreme thermal stability and long-lasting lubrication performance. With a base oil viscosity of 738 cSt at 40°C, Krytox™ XHT-750 is a phenomenal choice for any application with a broad temperature range. Krytox™ XHT-750 has an estimated useful temperature range of −15°C to 350°C (5°F to 662°F).
Krytox™ XHT-750 is a nonflammable and completely nonreactive performance lubricant for incredibly harsh environments.
Product Type: Synthetic PFPE Oil
Estimated useful temperature range: −15°C to 350°C (5°F to 662°F)
Base oil viscosity, cSt:
@ 20°C: 2,610
@ 40°C: 738
@ 100°C: 64.6
Oil viscosity index: 157
Pour point: −15°C (5°F)
Oil density (g/mL):
@ 0°C: 1.95
@ 100°C: 1.78
Food contact approval: none
Primary Chemistry: PFPE (perfluoropolyether)
Krytox™ XHT-750 Oil allows for extended lubrication intervals and longer equipment life. The oil can begin to slowly evaporate at temperatures above 350°C, and this will occur at an increasing rate as temperatures increase. Relubrication may be required at these temperatures to achieve optimum life. With their low surface tensions,
Krytox™ oils easily coat metallic surfaces, and because of their inertness, they have little or no adverse effect on metals. The testing of metals at 340°C in the absence of air has shown little evidence of corrosion. In the presence of air, corrosion was slightly higher. The presence of molybdenum in the metals improved corrosion resistance.
Unacceptable oil-volume loss through evaporation
Flammability concerns or high deposit buildup from oil
High levels of bearing or metal surface damage from poor lubrication
Krytox™ XHT-750 is a high performance PFPE-base oil for a wide variety of specialty lubrication applications at high temperatures. The base oil will begin to slowly evaporate at temperatures exceeding 330°C and may require re-lubrication for optimum equipment life.
This case study follows an innovative electronics manufacturer that was struggling with their incumbent lubricating oil, resulting in much higher budgetary cost, maintenance downtime. Learn how the Chemours team provided a solution in the Krytox™ XHT that solved their long-term difficulty.
The Krytox™ XHT line of performance greases provide unrivaled thermal stability at extremely high temperatures. Explore how these highly engineered lubricants provide longer lasting protection and allow for extended equipment lifespan here.
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