Technical data
a. Touch-up using MIL-PRF-23377 Type I, Class C1 or C2
or MIL-PRF-85582 Type I, Class C1 or C2 epoxy
primer and MIL-PRF-85285 Type I high solids polyure-
thane in the touch up applicator pen. These self con-
tained touch up applicators are available by national
stock number under the coating specification.
b. The applicator provides two-component pre-measured
materials which are separated by a barrier, Figure 5-1.
To mix the materials for use, displace the barrier
separating the materials by sliding the tube collar all the
way to the back of the applicator, Figure 5-2. Shake the
applicator vigorously by hand until the materials are
thoroughly mixed (approximately one minute).
NOTE
The brush cap must remain in place while
mixing.
After mixing, remove the brush cap and press the
applicator against a test article to bleed off any
internal pressure that may have formed during
storage.
c. Apply the primer by pressing the applicator brush
against the work surface. This opens the spring-loaded
valve which allows the coating material to flow when
the tube is gently squeezed, Figure 5-3. Use the brush to
distribute primer onto the work surface as required.
Replace the brush cap when the applicator is not being
used.
d. Apply one full wet coat of MIL-PRF-85285, Type I
mixed polyurethane topcoat with a touch-up pen in the
same manner. If required, apply a second coat after
allowing 1-4 hours curing period for the first coat.
5.8.3 Aerosol Touchup.
a. Power Pak Spray Unit NSN 4940-00-803-6444, Speci-
fication MIL-S-22805/SAE-AS-22805, Type I, Class
134A (PN M22805-1-134A) may be valuable aid in
accomplishing field maintenance painting. (See Figure
5-4). The kit is designed to be disposable and intended
for use in isolated areas when air spray guns cannot be
used or are not available. Replacement propellant HFC/
Type R134A propellant cans may be obtained under
A-A-58060, Type R134A, (PN AA58060-
R134AW034).
b. Preval Spray Unit, 8020-01-501-3127, (Preval Sprayer
Kit with Power Unit and Glass Bottle), or 8020-01-496-
Figure 5-1. Sempen
Figure 5-2. Sempen Mixing
Figure 5-3. Sempen Application
TO 1-1-8
5-14 Change 3