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Krytox™ XHT-750 Oil

Krytox™ XHT-750 Oil is a special extreme high temperature grade oil with low evaporation and extra treatment to allow use at temperatures above the range of normal PFPE oils. Krytox™ XHT-750 Oil has viscosity of 738 cSt @40°C.

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Product Overview

Krytox™ XHT-750 Oil is a special extreme high temperature grade oil with low evaporation and extra treatment to allow use at temperatures above the range of normal perfluoropolyether (PFPE) oils.  Krytox™ XHT-750 Oil provides excellent lubrication over a broad temperature range.   All Krytox™ XHT series oils are nonflammable and chemically inert.

Product Specifications

Food Contact Approval:  None
Base Oil Viscosity cSt @40°C: 738
Oil Viscosity Index: 157
Pour Point °C: -15°C:
Grease Density, g/ml @0°C: 1.95
Oil Volatility, % in 22 hr @260°C: 0.6
Vapor Pressure of base oil @20°C: 3 x 10–14
Estimated Useful Range, °C: -15 to 350
Primary Chemistry: PFPE

Features & Benefits

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. Re-lubrication could 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, Krytox™ oils have little or no adverse effect on metals. 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.

Related Products

Krytox™ Oils

Krytox™ oils offer excellent stability, lubricity, and viscosity under a wide range of conditions. The product line includes linear oils, fluorescing oil, general-purpose lubrication, sintered bearing oils, and vacuum pump fluids, all of which combine high-temperature performance, non-flammability, and chemical inertness.

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