TM 1-1520-238-23
5-61
5.11.
MAIN ROTOR BLADE PAINT EROSION TOUCHUP continued
5.11.3. Paint Touchup
CAUTION
To prevent damage to main rotor blade,
sand metallic surfaces in a spanwise di-
rection and sand glass skin surfaces in a
chordwise direction.
a. Remove all loose and non-adhering paint
from area to be touched up on main rotor
blade (1).
(1) Feather edges of repair area. Use cloth
(item 48, App F).
b. Clean sanded areas. Use methyl ethyl ketone
(item 124, App F) and cloth (item 51, App F).
(1) Allow surface to dry not less than 15 MIN-
UTES or until no solvent odor is noticeable
before applying primer.
c. Apply primer by spraying full wet coats to pro-
duce a dry film to a thickness of 0.8 to 1.2 mils
(TM 55-1500-345-23). Use epoxy primer coating
kit (item 78, App F), paint cup, and spray gun.
(1) Allow primer dry film to dry not less than 1
HOUR and no more than 48 HOURS before
application of topcoat.
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