MARUTI SUZUKI Zen Estilo 2018, Manual

Page: 781 / 788

PAINT / COATINGS 9L-1
Paint and Coatings
Anti-Corrosion Treatment
Warning:
Standard shop practices, particularly eye
protection, should be followed during the
performance of the below-itemized
operations to avoid personal injury.
As rust proof treatment, steel sheets are given
corrosion resistance on the interior and/or exterior.
These corrosion resistance steel sheet materials are
called one of two-side galvanized steel sheets.
It is for the sake of rust protection that these materials
are selected and given a variety of treatments as
described blow.
1) Steel sheets are treated with cathodic
electroprimer which is excellent in corrosion
resistance.
2) Rust proof wax coatings are applied to door and
side sill insides where moisture is liable to stay.
3) Vinyl coating is applied to body underside and
wheel housing inside.
4) Sealer is applied to door hem, engine
compartment steel sheet-to-steel sheet joint, and
the like portions to prevent water penetration and
resulting in rust occurrence.
In panel replacement or collision damage repair,
leaving the relevant area untreated as it is in any
operation which does disturb the above-mentioned rust
proof treatment will cause corrosion to that area.
Therefore, it is the essential function of any repair
operation to correctly recoat the related surfaces of
the relevant area.
All the metal panels are coated with metal conditioners
and primer coating during vehicle production. Following
the repair and/or replacement parts installation, every
accessible bare metal surface should be cleaned and
coated with rust proof primer. Perform this operation
prior to the application of sealer and rust proof wax
coating.
Sealer is applied to the specific joints of a vehicle during
production. The sealer is intended to prevent dust
from entering the vehicle and serves also as an
anticorrosion barrier. The sealer is applied to the door
and hood hem areas and between panels. Correct
and reseal the originally sealed joints if damaged.
Reseal the attaching joints of a new replacement
panel and reseal the hem area of a replacement door
or hood.
Use a quality sealer to seal the flanged joints, overlap
joints and seams. The sealer must have flexible
characteristics and paint ability after it’s applied to
repair areas.
For the sealer to fill open joints, use caulking material.
Select a sealer in conformance with the place and
purposeof a specific use. Observe the manufacturer’s
label-stand instructions when using the sealer.
In many cases, repaired places require color painting.
When this is required, follow the ordinary techniques
specified for the finish preparation, color painting and
undercoating build-up.
Rust proof wax, a penetrative compound, is applied
to the metal-to-metal surfaces (door and side sill
insides) where it is difficult to use ordinary
undercoating material for coating. Therefore, when
selecting the rust proof wax, it may be the penetrative
type.
During the undercoating (vinyl coating) application,
care should be taken that sealer is not applied to the
engine-related parts and shock absorber mounting
or rotating parts. Following the under coating, make
sure that body drain holes are kept open.
The sequence of the application steps of the anti-
corrosion materials are as follows:
1) Clean and prepare the metal surface.
2) Apply primer.
3) Apply sealer (all joints sealed originally).
4) Apply color in areas where color is required such
as hem flanges, exposed joints and under-body
components.
5) Apply anti-corrosion compound (penetrative wax).
6) Apply undercoating (rust proof material).