Acura TL (1995-1998) body repair. Manual — part 30
General
Soft Chipping Guard Primer Coat
The removal of paint and undercoating by stones and gravel immediately exposes metal to the atmosphere, causing it to rust. The
thickness of this rust increases if the process continues unchecked. The soft chipping guard primer protects against damage due
to the impact of flying objects. The purpose of this guide is to provide information you will find useful when repairing damage to
the protective coating. Refer to the Soft Chipping Primer Undercoating Diagram.
The soft chipping guard primer is applied over the E.D. (Electrostatically Deposited) primer. It is followed by guide coating and top
coating.
The soft chipping guard primer produces a smooth surface when dry. It should be sprayed so the thickness of the protective film
is 20 microns.
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Coating Diagram
Soft Chipping Guard Primer Coat
The diagram shows the areas to which soft
chipping primer is to be applied.
NOTE: Make sure to coat the flange on front
and rear wheel arches.
Unit: mm (in)
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Types of Soft Chipping Guard Primer (Reference)
Repair Materials and Tools
Gun and brushes:
• Spray gun
NOTE: Any gun having a tip of more than 1.0 mm
(0.04 in) in diameter may be used for spraying the
primer.
• Viscosity measure
Iwata-type (IMS) cup, Ford cup
• Beaker
1-2 (1.05-2.10 US. qt, 0.9-2 Imp. qt) in capacity
• Stirring stick
Tools:
• Air or double action sander
• Sandpaper (#240-#400)
Thinner and cleaner:
• Use the thinner specified for the primer.
• Any commercially available lacquer thinner may be used
to clean the gun.
Materials:
• Use primers equivalent to the ones shown in Types of
Chipping Guard Primer (Reference).
• Make sure to keep the thickness of the coat at 20
microns.
Masking:
• Masking tape, paper, vinyl sheet and plate (veneer and
steel).
• Masking plates are not necessary when spraying in a
booth.
Protectors:
• Wear an approved respirator or dust mask, gloves,
safety goggles and other protective clothing.
• Rags.
• Most paints contain substances that are harmful if inhaled or swallowed. Read the paint label before opening the
container.
• Spray paint only in a well ventilated area.
• Cover spilled paint with sand, or wipe it up at once.
• Wear an approved respirator, gloves, eye protection and appropriate clothing when painting. Avoid contact with skin.
• If paint gets in your mouth or on your skin, rinse or wash thoroughly with water. If paint gets in your eyes, flush with
water and get prompt medical attention.
• Paint is flammable. Store it in a safe place, and keep it away from sparks, flames or cigarettes.
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Soft Chipping Guard Primer Coat
Coating Procedures
NOTE: This section covers the application of the soft
chipping primer to the replacement part.
1. Sanding the replacement part
Wear goggles or safety glasses to pre-
vent eye injury.
Sand the area to be painted with #240-#400 sand-
paper.
NOTE:
• Do not oversand the edges or corners of the part.
• Do not expose bare metal.
2. Air blowing/degreasing
• Do not use high air pressure; use only an ap-
proved, 210 kPa (2.1 kgf/cm
2
, 30 psi) air nozzle.
• Wear goggles or safety glasses to prevent eye
injury.
• Paint thinner is flammable. Store it in a safe
place, and keep it away from sparks, flames or
cigarettes.
Clean the surface with compressed air and wax and
grease remover.
3. Masking
• Place masking tape or paper around the surface to
be painted.
• Cover as wide an area as possible with tape or paper
to keep primer from spreading.
4. Spraying chipping guard primer
• Stir the primer thoroughly.
• Put the primer in a beaker and weigh the needed
amount of primer to be used.
• Mix the hardener into the primer, following the
manufacturer's instructions.
NOTE: Measure the primer and hardener so they are in
correct ratio.
• Add the specified thinner to the mixture of hardener
and primer to attain the proper viscosity for spray-
ing.
2C 68°F (20°C) 18 sec ± 1
• These substances are not available in the U.S.A.
Honda recommends using DuPont's 123 Vinyl
Coating, or Sherwin-Williams' Vinyl Gravel Guard.
Follow the manufacturer's instructions for
application.
• Once mixed with the hardener and thinner, the
primer must be used within the times shown below.
• Most paints contain substances that are harmful
if inhaled or swallowed. Read the paint label
before opening the container. Spray paint only in
a well ventilated area.
• Cover spilled paint with sand, or wipe it up at
once.
• Wear an approved respirator, gloves, eye protec-
tion and appropriate clothing when painting.
Avoid contact with skin.
• If paint gets in your mouth or on your skin, rinse
or wash thoroughly with water. If paint gets in
your eyes, flush with water and get prompt
medical attention.
• Paint is flammable. Store it in a safe place, and
keep it away from sparks, flames or cigarettes.
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