29/12/2025
This is Bergeon 6945-020 Fomblin UT18 grease, an excellent lubricant used in watchmaking and microtechnology.
**High-Performance Lubricant for Watchmaking**
**Properties and Applications**
* It is a perfluoropolyether (PFPE) based grease.
* Resistant to oxidation, chemicals, and temperature variations (from -30°C to 150°C).
* Compatible with all types of materials, including glass, metals, elastomers, plastics, and ceramics.
* Used by top Swiss watch houses, specifically for barrel arbors.