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MODEL 182 & T182 SERIES SERVICE MANUAL
12-48B. INTEGRAL FUEL BAY QUICK-REPAIR
NOTE
SEALANT. GC-435 is a quick-repair synthetic rubber
sealant for use in fuel bays when it is necessary
Work life of GC-435 is approximately
to refill bays as soon as the repair has been made.
(15) minutes. Shelf life is at least
The sealant is a two-part, medium-viscosity, poly-
(6) months when stored in an area
sulfide liquid polymer and is formulated for ap-
where the ambient temperatures are
plication by brush or extrusion. GC-435 may be
80
°
(26°C) or lower.
purchased from: Goal Chemical Sealants Corp.,
3137 East 26th Street, Los Angeles, CA 90023.
12-49. TESTING INTEGRAL FUEL BAY.
a. Remove vent line from vent fitting and cap fitting.
12-48C. SURFACE PREPARATION. To ensure max-
b. Disconnect fuel lines from bay.
imum adhesion of GC-435, integral bay surfaces
c.
To one of the bay fittings, attach a water manom-
should be free of oil, grease, wax, dirt, etc.
eter capable of measuring twenty inches of water.
Pour cleaning solvent onto the cloth and wipe
d. To the other bay fitting, connect a well regulated
the surface. Then use a clean, dry cloth to wipe
supply of air (1/2 PSI MAXIMUM, or 13. 8 INCHES of
the solvent from the surface prior to its evap-
water).
Nitrogen may be used where the bay might
oration. Be sure the surface to be sealed is
be exposed to temperature changes while testing.
clean
and dry. Observe all
e. Make sure filler cap is installed and sealed.
warnings and cautions covering preparation
and application of sealants as noted in this
section and the instructions included with
GC-435 sealant.
12-48D. MIXING SEALANT. GC-435 comes in pr-
measured and proportioned kits ready for use.
The base compound is cream-colored, and the
catalyst is black. If the entire kit is not
needed, the GC-435 may be proportioned by com-
bining (10) parts of the bee compound (cream-
colored), with (1) part of the catalyst (black)
by weight. Use an
mix the base and catalyst until a homogeneous
blend of color and appearane is accomplished
12-28
Revision 1
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