TB 43-0213
Section Ill. RUSTPROOFING PROCEDURES
20-4. Rustproofing Procedures.
rear of vehicle. Spray in all directions while
slowly withdrawing tool.
CAUTION
(2) Insert flexible wand tool into existing
framerail hole (B) as far as possible toward rear
Do not spray any portion of moving
of the vehicle and spray in all directions while
components, transmission transfer case,
slowly withdrawing tool.
cylinders, pump, valves, prop shaft, exhaust
system, rubber bump stops, brakedrums,
(3) Insert flexible wand tool into existing
framerail hole (A) as far as possible toward the
brake backing plates, parking brake linkage,
shift linkage, tires, electrical components,
front of the vehicle. Spray in all directions
e n g i n e linkages or air intake systems.
while slowly withdrawing tool.
Cover all areas with paper and tape as
necessary.
(4) insert flexible wand tool into existing
framerail hole (C) as far as possible toward the
front of the vehicle. Spray in all directions while
NOTE
slowly withdrawing tool.
There are areas where a 10 mil wet film
(5) Insert flexible wand tool in exisiting
t h i c k n e s s cannot be obtained without
framerail hole (D) as far as possible toward the
front of the vehicle and spray in all directions
wasting a large amount of compound. In
while slowly withdrawing flexible wand tool.
t h o s e areas, complete coverage of the
s u r f a c e area is necessary at whatever
thickness is obtainable.
(6) Insert flexible wand tool into existing
framerail hole (E) as far as possible toward the
rear of the vehicle. Spray in all directions
while slowly withdrawing tool.
a. Dry Film Thickness Requirements. A five mil
dry film thickness is required for adequate
(7) Insert flexible wand tool into existing
rustproofing protection. A 10 mil wet film
framerail hole (F) as far as possible toward the
thickness is required to obtain a minimum five
rear of the vehicle . Spray in all directions
mil dry thickness. If needed, the vehicle can be
while slowly withdrawing tool.
resprayed to reach the proper thickness.
(8) Insert flexible wand tool into existing
b. Spraying Pressure. The rustproofing compound
framerail hole (E) as far as possible toward the
should be applied to sheet metal and structural
front of the vehicle. Spray in all directions
members in even coats. Spraying pressure should
while slowly withdrawing tool.
be as low as possible while maintaining an even
spay pattern. An acceptable starting point is 40
(9) Insert flexible wand tool into existing
psi (kPa), but adjustments may have to be made
framerail hole (G) as far as possible toward the
due to temperature changes and differences in
front of the vehicle. Spray in all directions
rustproofing compound. Using too much pressure
while slowly withdrawing tool.
will waste the compund by causing overspray and
excessively thick coatings.
(10) Insert flexible wand tool into exising
framerail hole (H) as far as possible toward the
c. Rustproofing Frame and Underbody (see Figure
front of the vehicle. Spray in all directions
20-5 ).
while slowly withdrawing tool.
(11) Use flexible tool to completely cover all
(1) Insert flexible wand tool into existing
framerail hole (A) as far as possible toward the
exterior underbody surfaces.
20-4
