Krytox™ GPL 104 Lubricating Oil: Properties, Uses & Handling

Krytox™ GPL 104 lubricating oil is a high-performance perfluoropolyether (PFPE) fluid designed to deliver exceptional chemical inertness, thermal stability, and non-flammability for demanding laboratory and industrial lubrication applications.

Product Series

Krytox™ GPL series (Chemours / Kemu Krytox™)

Chemical Class

Perfluoropolyether (PFPE) lubricating oil

Key Property: Chemical Inertness

Resistant to virtually all solvents, acids, bases, and oxidizing agents

Key Property: Thermal Stability

Stable across a broad temperature range; non-flammable

Intended Use

Lubrication of laboratory instruments, valves, O-rings, and precision equipment

Aladdin SKU

K1547797

What Is Krytox™ GPL 104 Lubricating Oil?

Krytox™ GPL 104 is a member of the Krytox™ GPL (General Purpose Lubricant) series, a family of perfluoropolyether (PFPE) oils originally developed by Chemours (formerly DuPont). PFPE lubricants are fully fluorinated polyether fluids whose backbone consists of repeating perfluorinated ether units, imparting an exceptional combination of chemical inertness, thermal stability, low vapor pressure, and non-flammability.

Within the GPL series, different grade numbers correspond to different viscosities. GPL 104 is a relatively low-to-medium viscosity oil suitable for applications requiring good fluidity while maintaining the characteristic PFPE performance advantages. Its clear, colorless-to-slightly-amber appearance and inert nature make it easy to inspect and suitable for use with sensitive materials including polymers, elastomers, and reactive chemicals.

Aladdin Scientific supplies Krytox™ GPL 104 (SKU: K1547797) to research laboratories, instrument manufacturers, and industrial users who require a reliable, high-purity PFPE lubricant.

Key Properties and Performance Characteristics

The outstanding performance of Krytox™ GPL 104 stems directly from its fully fluorinated PFPE chemistry. Key properties include:

• Chemical Inertness: The C–F bonds in the PFPE backbone are among the strongest bonds in organic chemistry, rendering Krytox™ GPL 104 resistant to attack by virtually all common solvents, strong acids, strong bases, and oxidizing agents. This makes it safe to use in environments involving aggressive reagents.
• Thermal Stability: PFPE oils maintain their lubricating performance across a wide temperature range, from cryogenic conditions to elevated temperatures, without significant decomposition or degradation under normal use conditions.
• Non-Flammability: Krytox™ GPL 104 does not support combustion, making it suitable for use near ignition sources or in oxygen-enriched environments where hydrocarbon lubricants would pose a fire hazard.
• Low Vapor Pressure: The low volatility of PFPE oils minimizes contamination of sensitive processes, vacuum systems, or analytical instruments.
• Compatibility with Elastomers and Plastics: Unlike many hydrocarbon lubricants, Krytox™ GPL 104 does not swell or degrade most elastomers and plastics, making it well-suited for lubricating O-rings, seals, and polymer components.
• Inertness to Reactive Chemicals: Its unreactivity makes it suitable as a lubricant in systems handling reactive gases, oxidizers, or corrosive chemicals.

Note: Specific viscosity values, pour point, flash point, and density data should be confirmed against the current Chemours product datasheet, as Aladdin's source material references the GPL series generically.

Laboratory and Research Applications

Krytox™ GPL 104 lubricating oil finds widespread use across research and analytical laboratory settings, particularly where chemical compatibility and contamination control are paramount:

• Vacuum Systems: Applied to O-ring seals, stopcocks, and fittings in high-vacuum and ultra-high-vacuum apparatus to maintain leak-tight seals without contaminating the vacuum environment.
• Valves and Stopcocks: Used to lubricate glass or metal stopcocks on Schlenk lines, gas manifolds, and custom glassware, preventing seizure and ensuring smooth operation with reactive or moisture-sensitive gases.
• Cryogenic Equipment: Its retention of fluidity at low temperatures makes it suitable for lubricating joints and fittings on cryogenic apparatus.
• Analytical Instrumentation: Applied to moving parts in analytical instruments where hydrocarbon lubricants would interfere with measurements or degrade under analytical conditions.
• Microfluidics: PFPE oils including Krytox™ series are used in droplet-based microfluidics as carrier oils and surfactant matrices compatible with fluorinated channel materials such as PDMS and fluoropolymer tubing.
• Oxygen Service: Non-flammable and non-reactive with oxygen, suitable for lubricating valves and regulators in oxygen delivery systems.
• General Precision Lubrication: Bearings, gears, slides, and other precision mechanical components in laboratory instruments where long-term stability and cleanliness are required.

Safe Handling, Storage, and Disposal

Krytox™ GPL 104 is considered to have low acute toxicity under normal use conditions as an inert PFPE fluid; however, users must follow appropriate laboratory safety practices and consult the current Safety Data Sheet (SDS) before use.

Handling

• Use standard laboratory personal protective equipment (PPE): nitrile or neoprene gloves, safety glasses or goggles, and a laboratory coat.
• Avoid heating Krytox™ GPL 104 above its recommended maximum service temperature or in the presence of open flames. Thermal decomposition of PFPE fluids at very high temperatures (typically above 200–300 °C, depending on conditions) can produce toxic perfluorinated decomposition products including hydrogen fluoride (HF). Exact decomposition thresholds should be confirmed from the current SDS.
• Do not use in contact with molten alkali metals or strong Lewis acid catalysts, which can degrade PFPE chains.
• Work in a well-ventilated area when applying heated or aerosolized lubricant.

Storage

• Store in original, tightly closed containers at room temperature, away from strong oxidizers, open flames, and sources of heat.
• Keep away from incompatible materials such as molten alkali metals.
• Shelf life is typically extended due to PFPE chemical stability; confirm with current product documentation.

Disposal

• Dispose of waste Krytox™ GPL 104 in accordance with local, regional, and national regulations governing fluorinated fluids and PFPE waste. Do not pour down drains or into waterways.
• Contact a licensed hazardous waste disposal contractor if required by local regulation.

Always consult the current Aladdin Scientific and/or Chemours SDS for authoritative safety information before use.

Ordering, Specifications, and Quality

Aladdin Scientific supplies Krytox™ GPL 104 lubricating oil under SKU K1547797. This product is referenced as part of the Chemours Kemu Krytox™ GPL series of PFPE lubricants.

When ordering or evaluating this product, researchers and procurement staff should consider the following:

• Purity and Grade: Confirm the purity grade and specification certificate available with each lot. Request a Certificate of Analysis (CoA) or Certificate of Conformance (CoC) as appropriate for your application.
• Quantity: Available in various pack sizes to suit laboratory-scale research through to larger-scale instrument maintenance programs. Contact Aladdin Scientific for current pricing and availability.
• Compatibility Verification: Before use in critical applications, verify compatibility of Krytox™ GPL 104 with specific substrates, seals, or process chemicals in your system.
• Regulatory Documentation: SDS, CoA, and export documentation are available upon request from Aladdin Scientific customer service.
• Storage on Receipt: Upon receipt, inspect packaging integrity and store according to the conditions specified on the product label and SDS.

For technical inquiries, volume pricing, or custom packaging, contact Aladdin Scientific sales or technical support directly.

Frequently asked questions

What viscosity grade is Krytox™ GPL 104, and how does it compare to other GPL grades?

Within the Krytox™ GPL series, higher numbers generally correspond to higher viscosities. GPL 104 is a relatively low-to-medium viscosity PFPE oil, making it suitable for applications requiring good fluidity and ease of application at or near room temperature. Specific kinematic viscosity values should be confirmed from the current Chemours product datasheet, as Aladdin's source material references the series generically.

Is Krytox™ GPL 104 safe to use with oxygen and oxidizing gases?

Yes. Krytox™ GPL 104 is non-flammable and chemically inert, making it one of the preferred lubricants for oxygen service and systems handling strong oxidizing gases, where hydrocarbon-based lubricants would present a significant fire and explosion hazard. Users should nonetheless confirm suitability for their specific system pressure and temperature conditions by consulting the SDS and relevant engineering standards.

Can Krytox™ GPL 104 be used in microfluidic droplet generation systems?

PFPE-based Krytox™ oils are widely reported in the microfluidics literature as carrier-phase oils and as bases for PFPE-PEG surfactants used in droplet microfluidics, particularly with fluorinated channel materials. GPL 104's relatively low viscosity is advantageous for flow control in microchannels. Researchers should verify compatibility with their specific chip material and surfactant formulation before use.

What precautions are needed when heating or thermally stressing Krytox™ GPL 104?

Although Krytox™ GPL 104 is thermally stable under normal laboratory use, thermal decomposition at very high temperatures can generate toxic perfluorinated byproducts including hydrogen fluoride (HF). Avoid exceeding the recommended maximum service temperature specified in the current SDS. Work in a well-ventilated area or fume hood whenever heating is involved, and never use open flames or allow contact with materials that could catalyze PFPE degradation.

Where can I obtain the Safety Data Sheet (SDS) and Certificate of Analysis for Krytox™ GPL 104 (K1547797)?

The SDS and Certificate of Analysis for Krytox™ GPL 104 (SKU: K1547797) are available through Aladdin Scientific. Contact Aladdin Scientific customer service or visit the product page on the Aladdin website to download available documentation. The manufacturer (Chemours) may also provide complementary technical datasheets for the GPL series.

References

1. Chemours Company. Krytox™ GPL Series Performance Lubricants — Product Information and Technical Datasheets. Chemours, Wilmington, DE.
2. Aladdin Scientific. Product Listing: Krytox™ GPL 104 Lubricating Oil, SKU K1547797. Aladdin Scientific, Shanghai.
3. Holtze C. et al. Biocompatible surfactants for water-in-fluorocarbon emulsions. Lab on a Chip, 2008, 8(10): 1632–1639. doi:10.1039/b806706f

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