Vaz 21213, Руководство по ремонту, Страница: 175 / 222

over the weld seams and on the joints of the replaced parts.
Remove the stopper surplus with a cleaning cloth moistened in
white spirit.
Ensure the surrounding area is protected against overspray
(use genuine masking tape or several thickness of newspaper).
With the aid of a spray gun, apply primer like Éî-073 or Çã-
023 over the areas rubbed down to the bare metal. Allow five
minutes. The primer viscosity should be 22-24 Òs at 20°ë when
measured with the viscosimeter Çá-4. Use ksylol for thinning.
Using a spray gun, apply primer (ùè-0228) over the surfaces
coated with the base coat (Éî-073 or Çã-023) and over the
renewed body parts. Dry off at 90°ë within 60 minutes. Prior to
spraying, to primer (ùè-0228) add çî-1-type siccative of 6-8 %
or åíí-75-type catalyst of 3-4 % of the primer weight. The ready
mixture with catalyst should be consumed within 7 hours. The
primer viscosity should be 23-25 Òs by the viscosimeter Çá-4.
Thin the primer with thinner êù-11Ç or ksylol.
Allow the bodywork cool down, proceed with wet sanding
using the abrasive paper of 55ë 4-è type, flush with water, blow
with compressed air and allow to dry.
Any irregularities remained can now be filled carefully applying
filler paste, dry the body and smooth down the areas with the abra-
sive paper of 55ë 4-è type. Wash the body and blow dry with com-
pressed air. Mask off the surrounding areas from overspray with
thick paper and masking tape, then place the vehicle body into the
paint booth. Degrease the surfaces to be painted with white spirit.
Using a spray gun, apply two coats of paint (åã-197 or åã-
1195 type) at 7-10 minute interval on inner surfaces of the pas-
senger compartment, door apertures, engine bay, luggage com-
partment.
Apply three colour paint coats on the outside body surfaces
at 7 to 10 minute intervals.
Allow to dry at 90°ë within an hour and cool down at ambient
environment.
Before application, add 10% catalyst of ÑÉì-70 type into the
paint. For paints of åã-197 type it is permitted to use 20% male-
ic anhydride in ethylacetate. The paint viscosity should be 20 cs
when measured by the viscosimeter Çá-4. It is advisable to thin
paint with thinner of ê-197 type.
It is recommended to use ëè-7-type paint remover. For old
multilayer paint, apply it with brush two or three times depending
on the paint thickness.
Usually, 30-40 minutes are required to soften the old paint
which is then removed with a wire brush or putty knife.
Use white spirit to wipe off the remainder of the paint, rinse
with water, allow to dry.
Respraying separate parts
Paint any separately replaced parts (wings, doors, bonnets,
etc.) all over outer surfaces. The same recommendations are
applied to the parts restored after ding and dent.
Before respraying the parts remember to sand and apply
primer on the reassembled parts .
When performing the job, follow the methods adopted for
body respraying.
Bodywork corrosion protection
Corrosion mostly attacks inner cavities of the body, floorpan,
lower parts and struts along with anchorages and spot welding
areas.
Hard-to-reach cavities and underbody parts are most sus-
ceptible to corrosion caused by moisture, mud, salts and acids.
All this necessitates further protection for body inner sur-
faces and box sections through application of specific rust inhibit-
ing paints or sealants for joints. The products used to resist rust
formation are shown in Table 8-1.
It is advisable to use corrosion inhibitors «åÓ‚Ëθ» or «åÓ-
‚Ëθ-2» for box sections. Box sections should be treated every 1
to 1.5 years. The corrosion inhibitor is also applicable for the sur-
faces earlier treated with nygrol or other oils as well as for rusty
surfaces.
Protective grease of çÉå-åã type is used for inner cavities.
New vehicles have all inner cavities already coated with it.
Use a protective skin of çÉ-216Å type on the underbody.
Bitumen-type sound-proof sealant (Åèå-1) offers corrosion
protection and noise reduction for the underbody. The thickness
of the protective layer to be 1.0-1.5 mm.
Plastisol Ñ-11Ä helps protect the vehicle underbody against
corrosion, abrasive wear and contributes to better sound-dead-
ening. The layer thickness should be 1.0-1.2 mm. All new vehi-
cles have the underbody coated with Ñ-11Ä-type plastisol.
Plastisol Ñ-4Ä is applied on weld seams. Use the wet-type
sealant (51-É-7) on body joints.
Both air and airless rust-inhibitor spraying is recommended
for hard-to-reach or hollow cavities.
For air spray method you need compressed air supplied at
0.5-0.8 MPa (5-8 kgf/sq.cm) and a spray gun with a tank, hoses
and extensions for the gun. The optimum coating is achieved
with airless spraying at 4-12 åPa (40-120 kgf/cm
2
), where high-
er viscosity paints can be successfully used.
Box sections - preparations and
corrosion treatment
Inner cavities require specialist equipment. Entrust the job to
the skilled personnel in workshops.
Follow the procedure below when treating inner cavities
against corrosion:
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