P-FPG 028 Aviation Grease PFPE PTFE Synthetic Lubricant for Aerospace Bearings and Gears

Base stocks: synthetic perfluoropolyether

Type of thickener: polytetrafluoroethylene

Tags: Aviation grease, MIL-PRF-27617 Type IV lubricant, PFPE PTFE synthetic lubricant, aerospace instrument lubricant, high temperature grease.

- Base oil viscosity at 38°C (100°F): 50.5 cSt
- Estimated service temperature range ℃ (°F): -73 to 204 (-99 to 399)
- Penetration: 23.5 (mm)

P-FPG 028 is a smooth, buttery, white grease. It is designed to operate in a broad temperature range of -73 °C to 204 °C (-99 °F to 399 °F), resist hydrocarbon fuels and liquid oxygen, and lubricate aircraft, aerospace vehicles, and associated instruments.
P-FPG 028 aviation grease is certified to meet all requirements of Mil Spec PRF 27617 Type IV.
P-FPG 028 is formulated for demanding conditions and can be used in bearings, gears, and as a lubricant for o-rings and elastomers.

- Composition and Appearance: Formulated with perfluoropolyether (PFPE) base oil and a specialized, high-performance polytetrafluoroethylene (PTFE) thickener. The resulting grease is a smooth, creamy, white-colored lubricant.
- Temperature Range: Exhibits a wide operational temperature range from -73°C to 204°C (-99°F to 399°F), ensuring stable lubrication performance under extreme temperature conditions.
- Chemical Inertness: Demonstrates exceptional chemical resistance, withstanding exposure to hydrocarbon fuels, liquid oxygen, and a variety of other chemical substances, enabling safe use in environments where contact with these substances is likely.
- Viscosity Profile: The base oil exhibits a viscosity of 50.45 cSt at 40°C. This viscosity profile ensures adequate lubricant film thickness for components under diverse operating conditions, minimizing friction and wear.
- Application Scope: Primarily intended for aerospace applications, including the lubrication of bearings, gears, O-rings, and elastomers in aircraft and spacecraft. It also finds utility in specialized, high-demand industrial sectors with challenging operational environments, such as semiconductor fabrication and advanced electronics manufacturing.