Solvay Solexis Fomblin Y-Vac3 - Fomblin PFPE Greases
FomblinY-VAC 3 is a homogeneous white grease particularly suitable for use as a lubricant of mechanical parts operating at high vacuum and in contact with aggressive chemicals or oxygen. Fomblin Y-VAC 3 is used in 'lubricating for life' applications; its lubricating preperties make it suitable for parts requireing boundary (extreme pressure) lubricating properties. It's welding point, in Shell four ball EP tests, is 620 Kg. Fomblin Y-VAC 3 can be used to lubricate mechanical parts subjected to high thermo-mechanical stress. Fomblin Y-VAC 3 can be used for long periods of time, and at very high operating temperatures (from -20°C to 200°C) and is therefore widely used in the manufacturing, aeronautical and electromechanical industries. Based on low vapor pressure PFPE fluid (5 x 10-13 @ 20° C) thickened with a new grade of tetrafluoroethylene telomer.
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Features
- High vacuum seal and lubricant
- Outstanding chemical and thermo-oxidative stability
- Lubrication of components subjected to high thermo-mechanical stress
Properties
General Properties
Fomblin greases are homogenous, white, thick and particularly resistance to oxidation and to chemical agents. Further, they are compatible with all types of material (glass, metals, elastomers, plastics, ceramics) and their properties remain unaltered over wide temperature ranges. Fomblin greases can be used in the presence of water, oils, vapor and, in general, with all organic substances and solvents which are not highly fluorinated, without being removed, dissolved or modified in any way.
Standard Properties of Fomblin Grease
Thermal stability: Fomblin greases have dropping points above 300°C and can be used at high temperatures and in oxidizing conditions.
Chemical resistance: Fomblin greases are inert and do not react even at high temperature with fuels, acids, inorganic alkalis, halogens, fuming nitric acid and oxidizing solutions.
Lubricating properties: Shell Four Ball EP tests results.
Solubility / wash-out: Fomblin greases are stable, do not emulsify with water, and are resistant to all solvents except highly fluorinated solvents. Therefore Delifrene LS (1, 1, 3 Trichlorotrifluoroethane) and Galden SV, can be used to clean surfaces lubricated with Fomblin greases.
Oxygen compatibility: Bundesanstalt fur Materialpfufung, Berlin (BAM), has approved the use of Fomblin fluids and greases in the presence of oxygen. Furthermore the National Aeronautics and Space Administration (NASA) and the Naval Ship Engineering Center of the US Navy have both approved the use of Fomblin fluids and greases in liquid oxygen applications.
Compatibility with metals and strctural materials: Fomblin greases are compatible with all types of polymersm plastomers and elastomers. During tests over one month at 20°C none of these materials (nitrile, butyl, polyfluorosiloxane, EPDM rubber) revealed swelling, mechanical or physical alterations. Melamine, phenolic, polyoxymethylene, polyoleofin resins are not altered after contact with Fomblin greases for one month at 100°C. Fomblin greases can be used in continuous contact with metal, and oxygen, at temperatures up to 200°C.
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