Table of Contents
Advertisement
CHASSIS METAL. PLASTICS. PAINT AND REPAIR
2C-7
listing of "vinyl" interior colors are also provided.
"CONVENTIONAL"
interior acrylic colors are
designed for use only on hard trim parts, such as:
a. Steel parts (primer or sealer required on new service
parts).
b. Hard POLYPROPYLENE plastic ("Special Primer"
required-GM Part Number 105 1497 or equivalent).
c. Hard ABS plastic (NO primer necessary).
"VINYL" interior colors are designed for soft and/or
flexible trim parts, such as:
Instrument panel cover pad assemblies, upper door trim
pad assemblies, molded headlining panels, head rests and
assist handles. These colors require a final top of clear vinyl
spray, with instrument panel pads requiring a "non-glare"
clear final top coat. Other trim parts require a degree of gloss
to match similar adjacent parts.
"POLYPROPYLENE" PLASTIC PARTS
The system for painting polypropylene parts involves the
use of a special primer. It is essential that the service part be
first primed with a coating of special POLYPROPYLENE
PRIMER (G,M.P.D. Part Number 1051497, Detroit Auto
#PP-2250,
or
equivalent)
according
to
factory
recommendations on the can. Because the primer acts as a
bonding agent between the plastic and acrylic lacquer, failure
to use it will result in color coat "lifting" and/or "peeling"
problems. After priming, the part can be color coated with
conventional interior acrylic lacquer.
PROCEDURE
1. Wash part throughly with a cleaning solvent ("Acryli-
Clean", "Prep-Sol" or equivalent) that will not leave any
greasy film.
2. Apply a thin, wet coat of the special polypropylene
primer according to label directions on can. Wetness of
primer is best determined by observing gloss reflection of
spray application in adequate lighting. Be sure primer
application includes all edges. Allow the primer to flash dry
ONE (1) MINUTE MINIMUM and TEN (10) MINUTES
MAXIMUM. (If the flash period before color coating should
extend beyond ten minutes, the primer MUST be reapplied
to avoid previously mentioned adhesion problems.)
3. During the above flash time period (1 to 10 minutes),
apply appropriate "conventional" interior acrylic lacquer
color as required and allow painted part to dry for 4 to 5
hours before installing on car.
"RIGID OR HARD ABS" PLASTIC
PARTS
Rigid or hard ABS plastic requires no primer.
"Conventional" interior acrylic lacquers adhere satisfactorily
to hard ABS plastics.
PROCEDURE
1. Wash part thoroughly with a cleaning solvent
("Acrylic-Clean," "Pre-Kleano," "Prep-Sol" or equivalent)
to remove any dirt or grease.
2. Apply appropriate "conventional" interior acrylic
lacquer color.
3. Allow to dry and then install part.
NOTE: Apply only sufficient color for proper hiding to
avoid washout of "grain" effect.
"VINYL AND FLEXIBLE (SOFT) ABS"
PLASTIC PARTS
The outer cover or skin material of "flexible" instrument
panel cover (pad) assemblies is made of an ABS/PVC plastic
blend. The same is true of many "padded" door trim
assemblies. The soft cushion padding under the I.P. skin is
urethane foam plastic. The most widely used "flexible" vinyls
(poly vinyl chloride) are coated fabrics, such as used in seat
trim, some door trim assemblies, molded headlining panels
and sun visors. Most head rests are "flexible" vinyls.
Examples of "hard" vinyls are: door and front seat back assist
handles and coat hooks.
The paint system of vinyl and flexible ABS plastic
involves the use of interior "vinyl" color and a clear vinyl top
coat.
NOTE: No primer or primer-sealer is required.
PROCEDURE
1. Wash part thoroughly with a vinyl cleaning and
preparation solvent ("Vinyl Pressv-Ditzler, "Vinyl Prep
Conditionerm-Detroit Autobody or equivalent) to remove
greasy film or silicone. Wipe off cleaner while still wet with
clean, lint-free cloth.
2. Immediately after wiping face dry, apply interior
"
vinyl" color in wet coats allowing sufficient flash time
between coats (see label directions on can). Use proper
"vinyl" color as designated by interior trim combinations.
3. Before the final vinyl color coat has dried, apply two
coats of clear vinyl top coat spray (instrument panels will
require the "non-glare" clear top coat). Do not allow the first
spray coat to completely dry before spraying on the second.
Use top coat with appropriate gloss level to match adjacent
similar components. This clear coat is necessary to control
the gloss requirement and prevent "cracking" (rubbing-off)
of the color coat after drying.
4. Allow to dry according to label directions before
installing part.
NOTE: Apply only sufficient color for proper hiding to
avoid washout of "grain" effect.)
SERVICE PROCEDURES
Following are the exploded service procedures for the
front end and fenders and hood. Also, included are the
various decal and molding attachment locations.
Advertisement
Table of Contents
