P-28 PCTFE Grease Oxygen-Compatible and Silica-Thickened for Valves and Seals

Product Number: P-28LT
Category: Imported Brand Alternative
NLGI Grade #: 2 (265-295)
Base Oil Viscosity, cSt: 95cSt @ 100°F
Appropriate Use Range: -20 to 120°C

Key Characteristics: PCTFE grease, oxygen-compatible lubricant, silica-thickened grease.

Color: Off-white
pH (Value): Neutral
Melting Point (°C) / Freezing Point (°C): > 200 (>392°F)
Density (g/ml): 1.9 @ 38 °C
Solubility (Water): Negligible
Decomposition Temperature (°C): > 200 (>392°F)
Kinematic Viscosity (cSt): > 200 @ 40 °C
Explosive properties: Not explosive
Oxidizing properties: Not oxidizing

P-28 grease is a medium-bodied, moderate-viscosity PCTFE oil thickened with silica designed for applications centered around common ambient conditions.

This inert oil is manufactured by a controlled polymerization process and then is stabilized to give it some very unique properties.

This oil is safe, chemically inert, nonflammable, and is oxygen- and chlorine-compatible. It has good lubricity, high thermal stability, and low compressibility.
The thickener used in this grease is a very fine silica powder. Silica is a commonly requested grease thickener, but its chemical stability is more limited than the PCTFE oil.

Silica-thickened greases can be prone to attack by chemicals active toward silica, such as alkalis, hydrofluoric acid, and fluorinating agents.

Compatibility of silica-thickened greases should be confirmed before being used in applications in contact with these chemicals.
Typical applications for this grease include valve lubrication and seals.
Available with a rust inhibitor as 28I