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SERVICE BULLETINNUMBER ST-02-2/82 |
CATEGORY: TECHNICAL
ATTENTION: ALL DMC DEALERS/SERVICE MANAGERS
SUBJECT: PAINTING OF STAINLESS STEEL BODY PANELS
Much interest has been expressed recently in painting
the stainless steel body panels of the De Lorean auto-
mobile. In an effort to assist our dealers, De Lorean
Motor Company has obtained the paint procedures, including
materials specifications, recommended by three major sup-
pliers of automotive paints. These processes, according
to the paint suppliers, have been tested and found acceptable
by the companies involved. We will supply you with test
data when available. Dealers are strongly advised to contact
the local distributor or representative of the specific
paint brand to be utilized before proceeding with any paint
work. The local agents may be able to provide assistance,
answer questions, and clarify what warranty, if any, may
be available from each specific supplier.
While De Lorean Motor Company has test painted three vehicles
which are very attractive, we have not yet completed adhesion
or durability tests. De Lorean Motor Company therefore
makes no specific recommendation with regard to the advis-
ability of painting the stainless steel, or to the process
and materials for such painting. In addition, De Lorean
Motor Company does not offer a paint warranty, except as
contained in the published new car warranty applying to
those painted components which are standard on production
vehicles. Consequential damage to dealer supplied paint
resulting from the failure of a warranted component is not
covered under the De Lorean warranty.
The attachments to this bulletin are the painting processes
as described above.
Continued . . . . .
Issued 2/1/82
-2-
Road Wheels
Since the road wheels have a color coating that is impreg-
nated into the surface as part of the heat treatment used
to temper the alloy, with an epoxy clear coat applied over
that, the adhesion of another color coat will be difficult
to achieve even with careful preparation. Again, it is
suggested that you consult with your local paint distributor
before proceeding.
Front and Rear Facias
Facias may be refinished to match body colors applied. See
our Service Bulletin ST-13-9/81, or consult your local paint
distributor.
William A. Charles
Director, Service/Parts
WAC:ak
Attachments
Bulletin ST-02-2/82
Attachment - Page 1
The Sherwin-Williams Company
1550 So. Anaheim Blvd. January 19, 1982
Anaheim, Calif. 92805
Dear Mr. Charles:
Per your request you will find our recommendations for Delorean-Stainless.
1. Detergent wash with QUICK SLICK Detergent solution, W4 K 290.
2. Solvent wipe with SHER-WILL-CLEAN, R7 K 156.
3. Apply 2 wet coats of Wash Primer, E2 G 973, per instructions.
4. Apply 2 or more medium coats of Ultra Fill Primer Surfacer.
5. Topcoat with Acrylic Lacquer.
If you have any questions or would like any assistance regarding this
matter, please do not hesitate to contact me.
Sincerely,
W. A. Patterson
Bulletin ST-02-2/82
Attachment - Page 2
PPG INDUSTRIES, INC./3800 WEST 143RD STREET/CLEVELAND, OHIO 44111/AREA 216/671-0050
Andrew R. Cooper, Technical Manager
Ditzler Automotive Finishes
Coatings and Resins Division
January 5, 1982
Doyle Potter
Technical Training Manager
2055 South East Main Street
Ervine, California 92714
In response to our phone conversation, I have outlined below the
Ditzler painting system that will be presented to Mr. DeLorean.
Panels representing the performance properties of this system
are also being submitted.
1. Thoroughly clean surface to be painted with DX200 Wax and
Grease Remover and Scotch-Brite pads.
2. Apply 2 full wet coats of DP40 Epoxy Chromate primer mixed
with equal parts of DP401 Primer Catalyst. A flash time of
20-30 minutes between coats of primer is recommended.
3. After primer has air dried for 2 hours, apply 2 or 3 double
coats of Deltron Acrylic Urethane color catalyzed and reduced
per label instructions.
4. If desired the color coat can then be clear coated using DAU82
Deigio Acrylic Urethane clear. Follow label instructions and
necessary dry times. The use of the clear will provide the
ultimate in gloss and long term durability.
For further information on the individual products please contact our
area representative Mr. Ramiro Fernandez or me.
A.R. Cooper
Technical Manager
ARC:sv
Bulletin ST-02-2/82
Attachment - Page 3
DuPont Refinish System
For DeLorean Motor Company
Following are the recommended procedures for refinishing with DuPont's
Imron® polyurethane enamel. As certain components of the products represent
a health hazard, included are safety precautions and procedures. Equipment
chosen should meet OSHA, NIOSH and MESA standards.
5717-S Metal Conditioner (Safety)
WARNING! CAUSES IRRITATION. Contains phosphoric acid. Avoid contact
with skin and eyes. Avoid prolonged or repeated breathing of vapor.
Wash thoroughly after handling. In case of contact, immediately flush
eyes with plenty of water for at least 15 minutes; call a physician.
Flush skin with water. To avoid skin contact, the use of rubber gloves
is suggested.
224-S Steel Conversion Coating (Safety)
DANGER! STRONG OXIDIZER. CONTACT WITH OTHER MATERIAL MAY CAUSE FIRE.
HARMFUL IF SWALLOWED. CAUSES IRRITATION. Contains phosphoric acid
and bromates. Keep from contact with clothing and other combustible
materials. Do not store near combustible materials. Avoid breathing
mist and contact with skin and eyes. Wash thoroughly after handling.
Keep container closed. In case of contact, immediately flush eyes
with plenty of water for at least 15 minutes; call a physician.
Flush skin with water. If swallowed, dilute by giving several glasses
of water or milk. If vomiting occurs spontaneously, repeat several
times. Call a physician. USE WITH ADEQUATE VENTILATION. KEEP OUT
OF REACH OF CHILDREN.
824-S Light Gray
Corlar® Epoxy Primer (Safety)
WARNING! FLAMMABLE. BREATHING OF VAPOR MAY CAUSE IRRITATION. Contains
glycol ether solvents. Keep away from heat, sparks and open flame.
Avoid prolonged or repeated breathing of vapor or spray mist. Avoid
contact with eyes and skin. Keep container closed when not in use.
USE ONLY WITH ADEQUATE VENTILATION. KEEP OUT OF THE REACH OF CHILDREN
FIRST AID: In case of skin contact, flush with plenty of water; for
eyes, immediately flush with plenty of water for 15 minutes and get
medical attention. If affected by inhalation of vapor, remove to
fresh air. If swallowed, CALL A PHYSICIAN IMMEDIATELY. DO NOT
induce vomiting.
Bulletin ST-02-2/82
Attachment - Page 4
Imron® Polyurethane Enamel (Safety)
WARNING! FLAMMABLE. Keep away from heat, sparks, and open flame.
Avoid breathing vapor of spray mist and prolonged contact with skin.
Wash thoroughly after handling. Keep container closed. Use with
adequate ventilation. IMPORTANT: When mixing with 192-S mixture
will have hazards of both components. Observe all applicable label
precautions.
WARNING! CONTAINS LEAD. Dried films of this paint may be harmful if
eaten or chewed.
Imron® Polyurethane Enamel System - Procedures
3812-S Enamel Reducer
Clean the metal to remove oil, grease and other contaminants. Using
a clean cloth apply 3812-S Reducer to the surface. While the surface
is still wet, fold a second clean cloth and wipe dry. Work small areas
two to three square feet, wetting the surface liberally.
5717-S Metal Conditioner
Metal treatment dissolves rust & corrosion and etches the metal for
better adhesion of finishing materials. Mix the cleaner with two
parts of water in a plastic bucket. Wearing rubber gloves apply with
a cloth or sponge. Work the area with a "Scotch-Brite" or similar
abrasive pad. While the surface is still wet wipe it dry with a
clean cloth.
224-S Conversion Coating
Steel Conversion Coating produces a high degree of corrosion resistance
& optimum adhesion of paint system. Pour the material in a plastic
bucket. Wearing rubber gloves use a "Scotch-Brite" or similar adhesive
pad to apply the undiluted material to the treated metal surface.
Leave the conditioner on the surface two to five minutes. Work only
as much area as can be coated and rinsed before the solution dries.
Reapply if the surface dries before the rinsing. Flush the coating
from the surface with cold water or mop with a damp sponge or cloth
rinsed occasionally in clean water. Wipe dry with a clean cloth &
allow to air dry. 224-S will impart a gray color to the steel.
824-S Light Gray Corlar® Epoxy Primer (Two-package product)
Offers excellent adhesion and flexibility over various substrates.
Mix two parts of Corlar® with one part of 826-S activator. Allow to
stand for an induction period of one hour if temperature is between
70°F and 90°F or two hours if temperature is between 55°F and 70°F
Do not use Corlar® if shop temperature is below 55°F. Reduce activated
material up to 15% with 3602-S thinner. Spray one full wet coat to give
a dry film thickness of 0.7 to 1 mil. Allow to dry 2-6 hours or
overnight before topcoat application.
Bulletin ST-02-2/82
Attachment - Page 5
Imron® Polyurethane Enamel
A high-gloss, extremely durable, chemical & solvent resistant, air-dry
material both in solid and metallic colors.
Mix three parts Imron® Polyurethane Enamel with 1 part 192-S Activator,
189-S Accelerator can be added (4 oz/gal) to increase drying rate. For
spraying large areas material may be reduced further with 8485-S Imron®
Reducer or 3979-S Retarder. 259-S Imron® Additive may be added (1 to 2
oz/gal) only if fish-eyes occur. Do not mix more material than will be
used in a eight-hour period. Pot life of mixture is eight hours at 70°F.
Application of Solid Colors
With siphon equipment, use 50 pounds pressure at the gun. Spray a
medium first coat. Allow to tack up and follow with a second coat.
With pressure pot, use 60-75 pounds of pressure at the gun and
a fluid delivery rate of 12-20 ounces per minute.
Application of Metallics
With siphon equipment, use 65 pounds pressure and apply a light medium
coat as a tack coat. Allow to set up 20 minutes, then apply a second
light medium coat. Reduce remaining material 15% with 8485-S (17-18
seconds DuPont Viscosity Cup or #2 Zahn Cup) and apply a third light
medium coat. If desired, another light medium coat of a reduced material
may be used. Metallics can be clear coated with 500-S Clear following
label directions.
With pressure pot equipment, use 65-75 pounds at the gun and a fluid
delivery rate of 8-14 ounces per minute.
Both solid and metallic colors can be clear coated with Imron® 500-S Clear.
500-S Imron® Clear (Optional)
Offers high gloss, chemical resistance and durability of Imron®
Mix 3 parts of clear with one part of 192-S activator. Mix thoroughly
and, if faster tape-free time is desired, add 189-S Accelerator at rate
of four oz. per gallon. Mix no more material than will be used in an
eight-hour period. Pot life of mixture is eight hours at 70°F. Following
mixing, strain material. No further reduction is necessary for application.
If desired, material may be further reduced with DuPont 3979-S Retarder.
Check viscosity every four hours and reduce if necessary. Spray
viscosity should be 18-22 seconds (#2 Zahn cup).
Allow Imron® color to dry overnight. Spray one medium coat. Allow to
tack up and follow with a full second coat. A third coat may be applied
if desired.
All information and recommendations are based on data which DuPont
believes to be reliable. However, such information and recommendations
are implemented and used by persons at their own discretion and risk.