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9L-1 Paint / Coatings:
Paint / Coatings
Basecoat/Clearcoat Paint Systems
WARNING
!
Exposure to isocyanates during paint
preparation and application processes can
cause severe breathing problems. Read and
follow all of the instructions from the
manufacturers of painting materials,
equipment, and protective gear.
All paint finish repairs of rigid exterior surfaces must
meet GM standards. Refer to the latest revision of the
GM Approved Refinish Materials book GM P/N
GM4901M-D to identify the paint systems you may use
that have been engineered to meet GM standards. The
GM Approved Refinish Materials book supplies all
approved products, including volatile organic compound
(VOC) compliant regulations recommended by the
individual manufacturer, and detailed procedures for
materials used in their paint system.
The booklet is now located on the Goodwrench website
www.gmgoodwrench.com.
Anti-Corrosion Treatment and Repair
WARNING
!
When applying sound deadeners, or anti-
corrosion materials due care and
preventative measures must be exercised to
prevent any material from being sprayed into
door and quarter panel mechanisms such as
door locks, window run channels, window
regulators and seat belt retractors, as well as
any moving or rotating mechanical or
suspension parts on the underbody,
particularly the parking brake cable. After
material application, be sure that all body
drain holes are open. Improper application
may increase chance of corrosion damage or
limit the operation of moving parts, resulting
in personal injury.
Any procedure that disturbs these special treatments,
such as panel replacement or collision damage repair
operations, may leave the metal unprotected and result
in corrosion. Proper recoating of these surfaces with
service-type anti-corrosion material is essential.
After repair and/or replacement parts are installed, all
accessible bare metal surfaces must be treated with
metal conditioner and reprimed. Refer to the GM
Approved Refinish Materials book GM P/N GM4901M-D
which identifies the paint systems you may use.
General Description
Anti-corrosion compounds are light-bodied materials
designed to penetrate between metal-to-metal surfaces,
such as pinch-weld joints, hem flanges, and integral
panel attaching points where metal surfaces are difficult
to coat with conventional undercoating materials, and
are inaccessible for painting. The materials that are
suitable for interior and exterior are listed in the chart
below. Conventional undercoating is recommended in
order to coat large areas, such as replacement door and
quarter outer panels, floor pan sections, lids, hoods,
fenders, etc. During undercoating operations, care
should be taken to prevent the material from being
sprayed into door and quarter panel hardware
mechanisms, such as door locks, window run channels,
window regulators, and seat belt retractors. On the
underbody, the material should not be applied to any
moving or rotating part, energy absorbing bumper
components, or shock absorbers. After undercoating,
ensure that all body drain holes are open.
Interior Protectant
The following products are available from permatex
retailer. For technical information, call 187-Permatex (1-
877-376-2839):
Permatex Part
Number
310-JDI-UCA1
310-81881
310-81882
Exterior Protectants
The following product is available from *ECP, Inc.
Contact them at 1-800-323-3521 or www.ecpinc.net.
Part Number
178660
The following products are available from your local
*3M® distributor, or call 1-800-521-8180, ext. 779-5165.
3M® Part
Number
08804
08801
05917
The following product is available from *Transtar
Autobody Technologies. Contact the company at 1-800-
824-2843 or www.tat-co.com
Part Number
Description
Permatex Canister and Wand
Permatex Amber Rust Proofing (24 oz)
Permatex Amber Rust Proofing (1 gal)
Description
Nox Rust X-121B (12 cans per case)
Description
Water-Based Undercoat
No Clean-Up Applicator Gun
Weld-Thru Coating
Description
4353
Weld-Through Primer
Assembly
(Qty of 12)
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