Technical data

Table 6-2. Leading Edge Tape Materials/Tools - Continued
Material Source Use
Tape, masking AF Supply Masking of application area
MIL-T-21595/SAE AMS-T-21595,
Type I
Abrasive Mat AF Supply Smoothing and scuff sanding of area
as surface preparation
A-A-58054, Type I, Class A or B
Cheesecloth AF Supply Cleaning of area and smoothing of
leading edge tape
CCC-C-440, Type I, Class 2
Xacto knife or razor blade Commercial Trimming tape
Isopropyl alcohol AF Supply Cleaning
TT-I-735A
Pin or 22 gauge or finer syringe needle AF Supply Air removal
Scraper, plastic Local Manufacture Tape removal
Template Local manufacture from heavy paper
other suitable material (width: same
as tape. Length: same as leading
edge. Mark center-line for alignment
with leading edge center-line.)
Mark area which leading edge tape
will be applied.
Paper wipers 3M Company Cleaning
Adhesive remover 3M Company Adhesive removal
PN 8908, NSN 8040-01-318-3668
PN 35975, NSN 8040-01-545-7323, 6
Pints
PN 35976, NSN 8040-01-545-9129,
Gallon
i. Let adhesion promoter dry for 20 minutes.
j. Cut a length of tape to fit leading edge plus four inches.
Remove about three inches of the edge.
k. With about two inches of the excess against the inboard
edge of the component, align the film with the top
template line and rub down with a tightly folded piece of
CCC-C-440, Type I, Class 2 cheesecloth.
Ensure air bubbles do not build under film.
l. Remove another three inches of the top liner section and
rub film to surface.
m. Repeat process above removing the next liner section
and continue until film is completely bonded.
n. Inspect work for air bubbles. Pierce bubbles with a
needle or pin, and press air out before removing tool.
o. Trim excess at the beginning and end of chipstrip where
adhesion promoter was not applied.
6.12.22.4 Application of Edge Sealer. Proceed as
follows.
a. Scuff one inch on either side of all seams and edges
where possible.
b. Wipe area with TT-I-735 isopropyl alcohol and allow to
dry.
c. Apply heavy coat of edge sealer per Table 6-2 into
seams and trowel flush with a razor blade.
d. Apply edge sealer to all vertical edges exposed to air
stream with an acid brush.
e. Allow edged sealer to cure 24 hours before painting.
6.12.22.5 Repair of damaged area. Proceed as fol-
lows.
a. Measure two inches either side of damage and apply
masking tape along this line.
b. Trim loose film from damaged area. Cut new film to fit
area to be repaired.
c. Scuff entire area with an A-A-58054, Type I Grade A
nylon abrasive mat.
d. Wipe area thoroughly with TT-I-735 isopropyl alcohol.
TO 1-1-8
Change 3 6-25