TLC Oil 15

TLC 15 is recommended for the most demanding vacuum, cleanroom, and high-temperature lubrication environments where the lowest possible vapor pressure and maximum lubricant stability are required. It is especially useful when the application cannot tolerate evaporation, outgassing, contamination, lubricant migration, or breakdown under heat and load.

 

Common application areas include:

 

• Ultra-high-vacuum systems and components
• Semiconductor and high-purity processing equipment
• Aerospace, satellite, and defense systems
• Scientific instruments and high-vacuum research equipment
• High-temperature mechanical assemblies
• Precision bearings, gears, seals, and sliding interfaces
• Oxygen-rich or oxygen-service environments
• O-rings and elastomer sealing surfaces where compatible
• Equipment exposed to aggressive chemicals, oxidizers, solvents, or reactive environments

Property	TLC 15 Specification	Engineering Relevance
Vapor Pressure at 20°C	≤ 3.5 × 10⁻¹⁵ Torr	Provides the lowest vapor pressure in the TLC oil series, helping minimize evaporation, outgassing, and contamination in ultra-high-vacuum environments
Operating Temperature Range	-8°C to +365°C / 17.6°F to 689°F	Supports the highest temperature rating in the TLC oil series for extreme thermal environments
Base Chemistry	PFPE / Perfluoropolyether	Provides chemical inertness, oxidation resistance, and long-term lubricant stability
Product Type	Ultra-low vapor pressure PFPE vacuum oil	Designed for the most demanding vacuum, cleanroom, and high-temperature lubrication applications
Oil Pour Point	-6°C / 21.2°F	Indicates low-temperature flow behavior for a heavier, high-viscosity PFPE oil
Viscosity at 20°C	3,515 cSt	Highest viscosity in the TLC oil series, providing strong lubricating film strength and load support
Viscosity at 40°C	1,030 cSt	Supports durable lubrication under moderate operating temperatures
Viscosity at 100°C	91 cSt	Maintains useful film strength at elevated temperatures
Viscosity Index	173	Supports stable viscosity behavior across changing temperatures
Flammability	Nonflammable PFPE chemistry	Supports use where fire-risk reduction is important
Chemical Resistance	Chemically inert PFPE formulation	Resists reaction with acids, oxidizers, solvents, and aggressive environments
Oxygen Compatibility	Stable in oxygen-rich environments when properly specified	Supports oxygen-service applications where conventional lubricants may not be suitable
Outgassing Profile	Extremely low outgassing	Helps maintain vacuum cleanliness and protect sensitive components from vapor contamination