Varace Air Corporation
Products | Greases | AeroShell Grease 7

AeroShell Grease 7


AeroShell Grease 7 is an advanced multi-purpose grease, composed of a synthetic oil thickened with Microgel®, possessing good load carrying ability over a wide temperature range. It is inhibited against corrosion and has excellent resistance to water.

The useful operating temperature range is –73°C to +149°C.


AeroShell Grease 7 satisfies nearly all the airframe grease requirements of turbine engined aircraft and also those of piston engined aircraft provided that seal incompatibility does not occur. Most civil aircraft manufacturers approve AeroShell Grease 7 as a general purpose grease either by brand name or by specification. It is recommended for lubricating highly loaded gears, actuator screw mechanisms, etc., also for instrument and general airframe lubrication within the temperature range of –73°C to +149°C.

AeroShell Grease 7 contains a synthetic ester oil and should not be used in contact with incompatible seal materials. Refer to the General Notes at the front of this section.

AeroShell Grease 7 is a clay-based grease approved to MIL-PRF-23827C Type II; it should not be mixed with soap-based greases approved to MILPRF-23827C Type I.


U.S. Approved MIL - PRF-23827C (Type II )
British --
French Equivalent DCSEA 354/A
Russian --
NATO Code G-354
Joint Service Designation --


Type II
Oil type Synthetic Synthetic ester (Diester)
Thickener type Clay Microgel
Base oil viscosity mm²/s
at 40°C
at 100°C
Useful operating temperature range °C -- –73 to +149
Drop point °C 165 min 260+
Worked penetration at 25°C 270 to 310 296
Unworked penetration at 25°C 200 min 283
Bomb oxidation pressure drop at 99°C
100 hrs kPa
500 hrs kPa
70 max
Oil separation at 100°C,
in 30 hrs % m
5 max
Water resistance test loss
at 38°C % m
20 max
Evaporation loss in 22 hrs
at 100°C % m
2.0 max
Mean Hertz Load (kg) 30 min 60
Antifriction Bearing Performance
at 121°C (hrs)
Copper corrosion 24 hrs at 100°C Must pass Passes
Bearing protection 2 days at 52°C  
Must pass
Colour -- Buff