Halocarbon silica thickened chlorotrifluoroethylene greases are designed for use in contact with powerful oxidizers. These greases are ideal inert lubricants for valves, seals, gear lubrication and many more applications in aggressive environments. The silica thickened greases should not be used in contact with alkalis, hydrofluoric acid and fluorinating agents.
Determining which Halocarbon inert grease to use will be dependent on the application. Conditions such as temperature, physical conditions and manufactures’ recommendations should be considered to determine which Halocarbon grease to use. Listed below are a summary of the physical properties:
Halocarbon Grease
NLGI Grade
ASTM Penetration Range
Service Temperature
Minimum Drop Melting Point
Description
32
1
310-340
-25 to 175癈
None
Softest grease with broad temperature range.
28
2
265-295
-25 to 175癈
None
Less soft grease with broad temperature range.
28LT
2
265-295
-45 to 95癈
None
Ideal for low temperature applications.
25-5S
3
220-250
-20 to 175癈
None
Can also be used a thread sealant.
19
4
175-205
-25 to 175°C
None
Hardest grease with broad temperature range.
All of the above grease are available with a rust inhibitor.
The silica thickened greases should not be used with fluorine and other fluorine related compounds
