Metal Replacement Parts Finishing - Suzuki sq-416-420-625 Service Manual

When the welding or heating operation causes the
original galvanization or other anticorrosive materials
to be burnt, the interior and under-body panel sur-
faces must be cleaned.
Removal of residues of the burning should be carried
out carefully when the relevant place has boxtype
construction or has shape which limits the access to
the interior surfaces. In general, the following method
can be used satisfactorily for the removal of those res-
idues.

METAL REPLACEMENT PARTS FINISHING

The metal service replacement parts (or assemblies)
are coated with electro-deposition primer.
For the proper adhesion of a paint, the following finish
process (refinish steps) becomes necessary.
1) Use wax or grease-removing solvent to clean the
part.
2) Use a wet or dry sand-paper (No. 400) to polish the
panel lightly. Do not polish it forcibly to produce any
scratch. Clean the part again.
3) If factory-applied primer coating is cut through to
the bare metal, apply metal conditioner to the bare
metal exposed to open air. As for method of use of
the metal conditioner, follow directions on the con-
tainer.
4) Apply primer-surfacer to the part completely dry
before starting sand-paper polishing. As for drying
time, follow directions advised on the primer-sur-
facer container.
5) Use a wet or dry sand-paper (No. 400) and water
to polish the panel lightly.
6) Wash the part again.
7) Apply color, coating to the part.
8) Different paints demand different drying methods.
Hence, follow directions advised on the pertinent
paint container.
Scrape the accessible places. If a standard putty knife
or scraper does not fit to the elevant place, consider
to use a more flexible scraper to a place narrowly en-
closed by sheet metals.
A jet of compressed air can remove most residues,
and is effective to limited areas.
However, this type of operation absolutely requires
eye protection.
9) When lacquer coating (quick-drying paint coat-
ing) is applied, dry coated surface and polish it
with compound.
In the case of the melamine or acrylic coating,
compound polishing can be omitted after drying.
10) If the case of lacquer coating, wax should not be
applied to coated surface until the surface has
dried completely (for approx. two months).
Before replacing exterior parts or assemblies, check
paint conditions of all the covered or hidden interior
surfaces. If any rust scale is found at these places,
proceed as follows:
1) Use a proper wire brush, adhesive or liquid rust re-
moving agent to remove rust. As for the method of
use, follow directions advised for respecitve mate-
rials.
2) If necessary, wash parts with detergent, rinse, and
dry them.
3) Before installing exterior body parts, apply anticor-
rosive compound to all cleaner surfaces of exterior
body parts. Also, apply anticorrosive compound to
inner surfaces of exterior body parts to be
installed.
BODY SERVICE 9-37