P-GR Y VAC 3 Firm NLGI 3 PFPE Grease for Ultra-High Vacuum and Heavy Loads

- Brand: PFPE KING®
- Model: P-GR Y VAC 3
- Packaging: 1KG
- Key Ingredients: Perfluoropolyether, polytetrafluoroethylene, and additives

- Type: Ultra-high vacuum grease, PFPE oxygen compatible lubricant, NLGI 3 specialty grease, PFPE KING UHV grease.

- P-GR Y VAC 3 is the highest-consistency variant in the GR Y VAC series, formulated for extreme high-vacuum applications, heavy mechanical loads, and demanding thermal environments.

- Base Oil: Perfluoropolyether (PFPE)
- Thickener: Polytetrafluoroethylene (PTFE)
- Color: White/Homogeneous
- Temperature Range: -20℃ to 250℃
- NLGI Grade: Grade 3 (Firm consistency, providing maximum structural stability under heavy mechanical stress)
- Vapor Pressure (20℃): Extremely low, approx. 4.8*10ˉ¹³ torr, making it ideal for ultra-high vacuum (UHV) systems
- Base Fluid Viscosity (20℃): Approx. 1400cSt

- Ultra-High Vacuum (UHV): Exhibits minimal outgassing and extremely low evaporation losses, meeting strict space and cleanroom standards (such as NASA outgassing requirements).
- High Load-Carrying Capacity: The firm NLGI 3 grade combined with robust EP (extreme pressure) performance allows it to withstand high mechanical loads and high-stress contact points without breaking down.
- Chemical & Oxygen Inertness: Highly resistant to aggressive chemicals, reactive gases, and pure oxygen environments, preventing spontaneous combustion or degradation.
- Precision Electronics & Optics: Frequently used in electron microscopes, semiconductor manufacturing tools, and aerospace instruments where hydrocarbon migration or polymerization films cannot be tolerated.