TM-1-1500-344-23-2
AIRCRAFT VOLUME II
TECHNICAL MANUAL; CLEANING AND CORROSION CONTROL
APRIL 2009
TM-1-1500-344-23-2 - Page 146 of 240
8-2
NAVAIR 01-1A-509-2
TM 1-1500-344-23-2
15 April 2009
indoor protection and short term protection where
surfaces can be recoated when required.
MIL-PRF-81309 materials are excellent water displacing
compounds which provide an ultra thin (0.5 mil or less),
soft film. The specification covers two types, both of
which can be applied by dipping, spraying, brushing, or
aerosol container. They provide temporary protection
from corrosion and are easily removable with a solvent.
They should not be used around liquid oxygen fittings.
8-6.1.1. Type II. A soft, thin film for general use,
particularly on moving or sliding parts where some
lubrication is needed, such as hinges or bomb racks. It
may be washed away by rain or wash procedures. Type
II shall be used to protect areas which cannot be
properly drained or contain recesses that are particularly
difficult to reach.
8-6.1.2. Type III. An ultra thin, soft film primarily for use
on avionics and electronic equipment. Although this
coating is nonconductive, it will allow electrical contact
because it is soft and very thin.
8-6.2.
MIL-DTL-85054 (CORROSION PREVENTIVE
COMPOUND (AMLGUARD)). AMLGUARD is a water
displacing CPC which forms a clear, dry, flexible film. It
is intended for use as a protective coating until painting
is practical. Because of its paint-like characteristics, it
provides no lubrication.
CAUTION
Ensure that all areas where MIL-DTL-85054 is
applied are fully dried before sealing an area.
Although MIL-DTL-85054 is a corrosion
preventive compound, its solvent vapors may
cause corrosion if not allowed to dissipate.
8-6.2.1. AMLGUARD can be applied by dipping,
brushing, spraying, or from aerosol containers; however,
dipping provides a very thin coating with less corrosion
protection. AMLGUARD is primarily applied by spraying
from aerosol cans. After each use of an aerosol can,
invert the can and spray until spray tip (nozzle) is clear
of entrapped material. If an aerosol can does not spray,
invert and depress the spray tip several times to clear
the delivery tube and spray head. If the can still does not
spray, remove and clean the plastic spray head then
spray again to clear the delivery tube.
8-6.2.2. AMLGUARD should be removed if it is
damaged due to abrasion, when there are cracks in the
coating, or if there is evidence of corrosion below the
coating. Since AMLGUARD buildup is difficult to remove,
especially after prolonged exposure to direct sunlight,
previously applied coatings should be removed before
reapplication. If the solvents do not remove old films of
AMLGUARD, spraying on fresh AMLGUARD to soften
the film and wiping or rubbing while wet is often effective.
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Table 8-1. Time Limitations for CPCs
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