2-6. SEALING COMPOUNDS AND ADHESIVES REMOVAL, APPLICATION, CURING, AND
a. Remove cured compound by one or both of
the following methods:
(1) Scrub with wire brush.
(2) Run screw or bolt in and out of
threaded insert until threads are clean.
APPLICATION (Work life is 5 minutes when
applied over grade T primer and 10 minutes when
applied over grade N primer.)
Locking compounds soften or pit surfaces of
plastics, and lacquer type finishes.
Do not use locking compounds on plastics or
lacquer type finishes.
Apply locking compound within 8 hours after
b. Prime all parts (2 above).
There are two ways to apply sealing, locking,
and retaining compound.
Type I application - the locking compound is
applied to mounting hardware before
Type II application - the locking compound is
applied to mounting hardware after
installation and final adjustments are made.
c. Apply locking compound using a soft brush
or applicator nozzle supplied with locking
Remove excess uncured compound using a
cloth and toluene or trichloroethane.
d. Cure compound applied over grade T
primer for 1 hour at 45°F or above.
e. Cure compound applied over grade N
primer for 5 hours at 45°F or above.
END OF TASK
4. INSULATING COMPOUND (CONFORMAL
Flammable, toxic, irritating. Can cause
breathing problems, eye damage.
At 325°F, gives off phosgene gas, which can
cause death or serious injury.
Dont: Use near flames or sparks, let it get
on skin, or breathe vapors.
Do: Use in well-ventilated area, close
containers when not using. Wear acid-type
safety goggles, rubber gloves, and rubber
If it contacts skin or eyes, wash affected
areas with running water. Get medical help
If you experience any breathing problems,
get to fresh air at once.