Krytox™ XHT-BD Lubricating Grease: Properties & Lab Use

Krytox™ XHT-BD lubricating grease is a high-performance, perfluoropolyether (PFPE)-based specialty grease engineered for extreme-temperature and chemically demanding laboratory and industrial environments.

Product Series

Krytox™ XHT Series (Chemours/Chemke)

Base Fluid Chemistry

Perfluoropolyether (PFPE)

Thickener Type

PTFE (polytetrafluoroethylene)

Temperature Range

Suitable for high-temperature applications; consult TDS for specific range

Chemical Inertness

Inert to most chemicals, oxidizers, and aggressive solvents

Flammability

Non-flammable

SKU

K1547853

What Is Krytox™ XHT-BD Lubricating Grease?

Krytox™ XHT-BD is a member of the Krytox™ XHT (Extreme High Temperature) series of specialty lubricating greases. These greases are formulated with a perfluoropolyether (PFPE) base oil thickened with polytetrafluoroethylene (PTFE), resulting in a product that combines excellent thermal stability with outstanding chemical resistance.

PFPE-based lubricants such as the Krytox™ XHT series are widely recognized in both research and industry for their ability to perform reliably under conditions where conventional hydrocarbon or silicone greases would degrade, volatilize, or react with process chemicals. The XHT-BD designation within the series indicates a specific viscosity grade and thickener concentration optimized for high-load and high-temperature bearing and equipment applications.

Aladdin Scientific supplies Krytox™ XHT-BD (SKU: K1547853) to research laboratories requiring a reliable, specification-grade specialty lubricant.

Key Performance Properties

Krytox™ XHT-BD lubricating grease offers a combination of properties that make it suitable for demanding research and industrial applications:

• High-Temperature Stability: The PFPE base oil retains its lubricating film integrity at elevated temperatures where most organic lubricants decompose. The XHT series is specifically engineered for extreme high-temperature service.
• Chemical Inertness: PFPE chemistry renders the grease essentially inert to strong acids, bases, oxidizers, halogens, and most aggressive solvents. This is critical in laboratory environments where reagent contact is possible.
• Non-Flammability: Unlike hydrocarbon greases, Krytox™ XHT-BD is non-flammable, providing an added safety margin in laboratory and industrial settings.
• Low Vapor Pressure: PFPE lubricants exhibit very low vapor pressure, making them suitable for use in vacuum systems and cleanroom environments.
• Oxygen Compatibility: Krytox™ PFPE greases are compatible with liquid and gaseous oxygen, an important consideration for oxygen-handling equipment.
• Wide Service Temperature Range: The XHT series is formulated to maintain performance across a broad temperature range, including at temperatures significantly higher than those tolerated by standard Krytox grades.

Note: Specific numerical performance data (e.g., exact temperature limits, viscosity values, NLGI grade) should be confirmed from the official Chemours/Chemke technical data sheet for XHT-BD.

Laboratory and Industrial Applications

Krytox™ XHT-BD is used across a range of research and industrial contexts where standard lubricants are unsuitable:

• High-Temperature Bearings and Mechanisms: Ovens, furnaces, autoclaves, and heated analytical instruments requiring reliable lubrication at sustained elevated temperatures.
• Chemically Aggressive Environments: Equipment exposed to strong oxidizers, corrosive gases, or reactive process chemicals where hydrocarbon lubricants would be incompatible.
• Vacuum and Cleanroom Systems: The low vapor pressure and non-outgassing properties of PFPE make XHT-BD suitable for vacuum pumps, valves, and ultra-clean processing equipment.
• Oxygen Service Equipment: Valves, regulators, and fittings in oxygen lines where flammable or reactive lubricants present a hazard.
• Semiconductor and Electronics Manufacturing: Where contamination from conventional lubricant outgassing is unacceptable.
• Aerospace and Defense Research: Applications requiring lubricants that perform across extreme temperature excursions.

Researchers should consult the Chemours/Chemke XHT-BD technical data sheet and safety data sheet (SDS) to confirm suitability for specific applications.

Handling, Storage, and Safety Considerations

Although Krytox™ XHT-BD is chemically inert and non-flammable under normal conditions, standard laboratory safe-handling practices should be observed:

• Personal Protective Equipment (PPE): Wear appropriate gloves and eye protection when handling. Avoid prolonged skin contact.
• Thermal Decomposition: PFPE lubricants can generate toxic fluorinated decomposition products if heated above their decomposition temperature in the presence of open flames or at extremely high temperatures beyond the rated service range. Adequate ventilation should be ensured.
• Contamination Control: Use clean application tools to prevent contamination of the grease, which can impair its performance and chemical compatibility.
• Storage: Store in original, tightly sealed containers at room temperature, away from direct sunlight and ignition sources, in accordance with the SDS.
• Disposal: Dispose of in accordance with local, regional, and national regulations for fluorinated materials.

Always refer to the current Safety Data Sheet (SDS) provided by Chemours/Chemke before use. The SDS is available through Aladdin Scientific or the manufacturer.

Ordering Information

Krytox™ XHT-BD lubricating grease is available through Aladdin Scientific under the following details:

• Product Name: Krytox™ XHT-BD lubricating grease
• SKU: K1547853
• Series: Krytox™ XHT Series

For quantity pricing, availability, and technical support, contact Aladdin Scientific's customer service team. Research institutions and procurement departments may request bulk pricing or project-based quotations. Please ensure your order references SKU K1547853 to guarantee receipt of the correct product grade.

Frequently asked questions

What makes Krytox™ XHT-BD different from standard Krytox™ greases?

Krytox™ XHT-BD belongs to the XHT (Extreme High Temperature) series, which is formulated for service conditions exceeding the upper temperature limits of standard Krytox™ grades. The XHT series uses a PFPE base oil with PTFE thickener optimized for higher thermal stability, making it the preferred choice when operating temperatures approach or exceed the limits of conventional PFPE greases.

Is Krytox™ XHT-BD safe to use with oxygen systems?

Krytox™ PFPE-based greases, including the XHT series, are widely recognized for their compatibility with liquid and gaseous oxygen, which is a key advantage over hydrocarbon-based lubricants. However, users should always verify compatibility with the specific oxygen service application by consulting the official technical data sheet and SDS, and follow all relevant safety standards for oxygen service.

Can Krytox™ XHT-BD be used in vacuum systems?

Yes, PFPE-based lubricants like Krytox™ XHT-BD exhibit very low vapor pressure and minimal outgassing, making them well-suited for vacuum applications. They are commonly used in vacuum pump bearings, vacuum valves, and other components where lubricant volatility would compromise system performance.

How should Krytox™ XHT-BD be stored to maintain its shelf life?

Krytox™ XHT-BD should be stored in its original, tightly sealed container at room temperature, away from direct sunlight and heat sources. Under proper storage conditions, PFPE-based greases typically exhibit excellent long-term stability. For specific shelf-life data, refer to the manufacturer's technical data sheet or contact Aladdin Scientific.

What is the NLGI grade of Krytox™ XHT-BD?

The specific NLGI consistency grade of Krytox™ XHT-BD should be confirmed from the official Chemours/Chemke technical data sheet, as this detail was not specified in the available source material. Please contact Aladdin Scientific or refer to the product TDS for this information.

References

1. Chemours Company. Krytox™ XHT Series Lubricants Technical Data Sheet. Chemours/Chemke.
2. Chemours Company. Krytox™ Lubricants Safety Data Sheet (SDS) — XHT-BD grade.
3. Aladdin Scientific Product Listing: Krytox™ XHT-BD lubricating grease, SKU K1547853.

Products are supplied for research and development use only. Not for use in humans, animals, diagnosis, or therapy.