TM 55-1520-240-23-4
5-137.1
REPAIR COMPOSITE WEATHER-PROTECTIVE COVER (AVIM)
(Continued)
5-137.1
SURFACE ABRASION
2.
Outline area of damage (2) with circle or oblong.
Use pencil compass and straightedge.
3.
Cut a piece of fiberglass laminate (E168.1) (3)
large enough to overlap outline of damaged area
(2) by 1.0 inch in all directions.
NOTE
Do not sand into glass fibers.
Complete removal of primer is not
necessary.
4.
Remove finish down to primer from an area
around damage (2) 1.5 inches larger in all
directions than damage. Use abrasive paper
(E8). Use cloths (E120) damp with acetone (E20)
as needed to soften finish. Wear gloves (E186).
5.
Clean area of finish removal (4). Use clean cloth
(E120) damp with acetone (E20). Wipe area
dry with a clean cloth. Repeat until there is no
residue on dry cloth.
6.
Prepare adhesive mixture. (Refer to steps 106
thru 109.) Apply coat of adhesive to area of finish
removal (4).
7.
Remove protective film from both sides of
laminate piece (3). Carefully pull at right angle to
direction of fibers.
8.
Apply coat of adhesive to underside of laminate
piece (3). Center piece over damage (2) and
press down.
9.
Bond and cure repair. (Refer to steps 110 thru
122.)
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