NLGI Grade 1.5 PFPE-Based Grease with Non-Melting Thickener with Very High Thermal Stability up to 300° and spikes to 330°C (Base Oil Viscosity of 500 cSt @40°C)
Krytox™ XHT-BD Grease is a specially engineered high-performance lubricant for environments that experience extremely high temperatures. Krytox™ XHT-BD Grease uses a special nonmelting high-temperature thickener with a very low evaporating base oil. This combination gives this Krytox™ grease the capacity to be used in applications under higher temperatures where common greases cannot be used due to their low melting points.
Krytox™ XHT-BD is nonflammable, oxygen-safe, and chemically inert. Krytox™ XHT-BD greases are designed for use where the temperatures are 288°C (500°F) and higher, where there is a danger of melting the standard PTFE thickener. Since this grease is formulated using a special nonmelting high-temperature thickener, the Krytox™ XHT-BD also provides extreme pressure properties and works as a solid lubricant even when the base oil is depleted.
Estimated useful range, °C: −20 to 300 (with spikes to 330)
Oil pour point, °C: −25
Base oil viscosity, cSt @ 40°C: 500
Oil separation in 30 hrs at 99°C: 6
Oil volatility in 22 hrs, % @ 260°C: 2.1
Appearance: White, creamy consistency
Specific gravity at 0°C: 2.00
NLGI Grade: 1.5
Primary Chemistry: PFPE
Primary Chemistry: PFPE
Excellent lubrication over a broad temperature range (−20°C to 300°C)
Great wetting-out performance with low surface tension
Chemically inert
Nonflammable
Extended lubrication intervals and equipment life
Loss of oil in grease system due to extremely high temps
Melting grease thickener technology
Corrosion, rust, or metal surface damage in very hot environments
Krytox™ XHT-BD Grease can be used in low-speed bearings or pillow housings with shear at high speeds that traditionally causes loss of oil in sealed bearings. Krytox™ XHT-BD Grease is slightly tacky and will stay in place when coated to a surface. The base oil in Krytox™ XHT-BD can begin to slowly evaporate at temperatures above 330°C (626°F), and this rate will increase exponentially as temperatures increase. Relubrication could be required at these temperatures to achieve optimum life.
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.
Krytox™ lubricants from the Chemours Company provide exceptional performance solutions for foldable electronic applications, such as laptops, headphones, and gaming systems.
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