c)  Make nozzle at the end of the tubing by clamping tube around a
0.010-inch diameter wire.

d)  Do not connect air hose to spray gun.

e)  Use 20 to 30-psi pot pressure for spraying.

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CORROSION PREVENTION MANUAL
GENERAL INFORMATION
STANDARD PREVENTIVE MAINTENANCE PROCEDURES

(b)  Brush Application

1)  Brush application may be accomplished using an ordinary paintbrush
or a clean cloth. This method is most appropriate for small con-fined areas or where caution is necessary to prevent corrosion
inhibiting compound from getting on surrounding equipment.

2)  For large areas or where confinement is not a problem, spray appli-cation is the effective method to use.

(8)  Removal of Water-Displacing Corrosion Inhibiting Compounds

(a)  Complete removal of corrosion inhibiting compounds is required
before repainting is attempted. Solvent cleaning is also required
before penetrant inspection. The following solvents have been suc-cessfully used to remove these compounds:

1) Perchloroethylene
2) Trichloroethylene
3) Trichloroethane
4) Naphtha
5) Magnaflux Corp. solvent (V37636)
6) Dry cleaning solvent, P-D-680 (Not recommended for use in lower

lobe cargo compartment)
WARNING: P-D-680 IS HIGHLY FLAMMABLE IN THE PRESENCE OF OPEN FLAMES

AND SPARKS.
NOTE: Use of methyl ethyl ketone (MEK) or acetone is not recommended.
7) Biogenic SE377C cleaner (V13092)(Preferred for removal of BMS 3-23

compound from areas with faying surfaces)
8) Citra Safe (VOK209)

(b)  When you use solvents to remove water-displacing corrosion inhibit-ing compounds, give the area a good flow of air until the solvents
evaporate.

(9)  Exterior Discoloration by BMS-23

(a)  Liberal use of water displacing corrosion inhibiting compounds on
the internal surfaces of the airplane can lead to discoloration of
the external surface. Because of the excellent penetrating proper-ties of these materials, a bleed-through can be expected at fasten-ers that are not fluid-tight. This is normal and does not indicate a
requirement to replace or redrive the fasteners. The tiny passages
should seal themselves within a short time.

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CORROSION PREVENTION MANUAL
GENERAL INFORMATION
STANDARD PREVENTIVE MAINTENANCE PROCEDURES

(b)  You can remove these compounds from the exterior surface with one of
the solvents listed. These solvents will not stain or damage the
exterior of the airplane or decorative finish. A noticeable differ-ence in oxidation of the exterior surfaces can occur between those
areas, which have been coated with the compound, and areas that have
　
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