TO 1-1-700 - Robins Air Force Base
TO 1-1-700 - Robins Air Force Base
TO 1-1-700 - Robins Air Force Base
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<strong>TO</strong> 1-1-<strong>700</strong><br />
7.5.6.5.1 Grade 1 - A thick, hard, black CPC which can be<br />
removed with difficulty using mineral spirits or degreasing<br />
solvents. It offers the most corrosion protection of all the<br />
CPCs indoors and outdoors and may be used at temperatures<br />
down to 0 °F (-18 °C). If used at temperatures below 0 °F (-18<br />
°C), the CPC film can crack and fall off leaving the surface<br />
unprotected.<br />
7.5.6.5.2 Grade 2 - A thick, soft, grease-like, brown CPC<br />
that remains tacky and can be removed with mineral spirits or<br />
degreasing solvents. It protects under relatively severe conditions<br />
and given adequate maintenance touch-up as necessary,<br />
can be used for most maximum protection requirements. It<br />
may be used at temperatures down to -40 °F. It is not a good<br />
choice for parts that are handled frequently since it remains<br />
tacky.<br />
7.5.6.5.3 Grade 3 - A thin, soft, oily film, water displacing<br />
CPC. This CPC doesn't penetrate into tight joints as well as<br />
MIL-PRF-81309, Type II or MIL-L-87177, Grade B, so one of<br />
them should be used as a substitute for this type of application.<br />
NOTE<br />
Remove the MIL-PRF-16173, Grade 3 film with A-<br />
A-59601, Type II or III, MIL-PRF-32295, Type II or<br />
MIL-PRF-680, Type II or III, or degreasing solvent<br />
prior to inspecting an area when the coating is dark<br />
and prevents visual inspection of the underlying surface<br />
for cracks.<br />
7.5.6.5.4 Grade 4 - A thick, soft, waxy type CPC that dries to<br />
a tack free, semi-transparent film through which identification<br />
can be read. It provides good protection under relatively<br />
severe conditions when touched-up as necessary. It is excellent<br />
for use on in service equipment over MIL-PRF-81309, Type<br />
II, MIL-L-87177, Grade B, or MIL-PRF-16173, Grade 3 water<br />
displacing CPC since it dries to a tack free film.<br />
• If MIL-PRF-63460 is used in an area which will<br />
later be sealed or totally enclosed with no ventilation,<br />
allow at least 4 hours for the solvent to evaporate<br />
prior to sealing or closing off the area.<br />
Although MIL-PRF-63460 is a corrosion preventive<br />
compound, its solvent vapors may cause corrosion<br />
if not allowed to dissipate.<br />
• Do not use MIL-PRF-63460 on rubber or other<br />
elastomeric parts. MIL-PRF-63460 contains solvents<br />
which attack rubber "O" rings and other elastomeric<br />
parts. Do not use as a direct substitute for<br />
MIL-PRF-32033 (VV-L-800).<br />
• Do not use corrosion preventive compounds on the<br />
interior of fuel tanks or fuel cells, engines, or engine<br />
fuel systems as fouling of fuel systems may<br />
occur.<br />
• Do not use corrosion preventive compounds on engine<br />
parts or accessories which exceed 800 °F (427<br />
°C). Corrosive reactions may occur with CPCs at<br />
high temperatures.<br />
• CPCs are not compatible with liquid oxygen and<br />
should not be used on oxygen equipment, lines,<br />
fittings, or storage bottles. Fire may result.<br />
7.5.6.6 MIL-PRF-63460 Lubricant, Cleaner, and Preservative.<br />
MIL-PRF-63460 is a thin, water displacing, protective,<br />
penetrating lubricant used for cleaning, lubrication, and preservation<br />
of equipment hinges and fitting joints that experience<br />
only minor and infrequent relative motion. This material has<br />
good lubricating properties between -65 °F and +150 °F (-54<br />
°C and +65 °C), and it is the best lubricant of all water displacing<br />
CPCs. It may be applied by brushing, dipping, or<br />
spraying by aerosol can or a pump sprayer.<br />
NOTE<br />
Use only CPCs authorized by and described in this<br />
manual and/or a system specific equipment manual.<br />
7-20 Change 3