Technical data

13773-001
51-20
Page 2930 Nov 2000
CAUTION: Chemical strippers should not be used as they may damage the laminate,
leave a residue or become trapped. Mechanical abrasion can also damage
a laminate, and may be particularly damaging to certain joint designs (wing
leading edge and fuselage joints). Grinders, air files and other single-action
tools tend to intensify pressure at the edges and will rapidly remove paint
and damage the underlying laminate.
Note: Highly contoured or fine detail areas should always be done by hand. Fine
grit paper (120-grit or finer) should be selected to minimize the potential for
accidental damage.
(j) From the inner border of the damaged area going outward, remove 1.0-inch of surface fin-
ish for each ply of laminate in the damaged area. For example: For 2-ply, prepare 2-inches
of sanded border; and for 3-ply prepare 3.0-inches of sanded border, etc.
Note: Once the paint, primer and any filler are removed, the damage should be
more apparent. On a glass-fiber reinforced laminate, damage will appear
white. If the backside of the laminate is accessible, and it does not have a
solid core, a bright light placed behind will show the damage as a dark or
gray area.
(k) Clean the area with a vacuum and clean compressed air to remove all loose particles and
dust.