Caution: Foam sound deadeners must be removed from areas within 152.4 mm (6 in) of where flame is to be used for body repairs. When reinstalling foam sound deadeners, avoid inhaling fumes as bodily injury may result.

Caution: Approved safety glasses and gloves should be worn when performing this procedure to reduce the chance of personal injury.

Notice: The anti-theft label found on some major body panels MUST be covered before performing any painting, rustproofing or undercoating procedures. The mask must also be removed following those procedures. Failure to follow these precautionary steps may result in liability for violation of the Federal Vehicle Theft Prevention Standard, and subject the vehicle owner to possible suspicion that the part was stolen.

Metal conditioners, primers, and anti-corrosion materials are applied, at the time of vehicle manufacture, to the interior and exterior surfaces of the frame rails and other metal panels. In addition, protective waxes are used on interior surface areas where moisture might accumulate. Sealers are applied along exposed joints.

Any procedure that disturbs these special treatments may leave the metal unprotected and result in corrosion. Proper re-coating 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 a metal conditioner and re-primed using a zinc chromate primer. This operation is to be performed prior to the application of sealers, waxes, deadeners, and anti-rust compounds.

Flanged joints, overlap joints, and seams should be sealed using a quality sealer of a medium-bodied consistency. The sealer used must retain its flexible characteristics after curing and must be paintable.

Open joints which require bridging of the sealer to close a gap should be sealed using a heavy-bodied caulking material. Follow the label directions for the material selected.

Color application may be required to restore repaired areas to their original appearance. When color application is necessary, conventional refinishing preparation, undercoat buildup, and color application techniques should be followed. Refer to Basecoat/Clearcoat Paint Systems .

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. Use anti-corrosion compounds where metal surfaces are inaccessible for painting. Use GM P/N 12346225 Anti-corrosion Compound Clear (Oil Base), or equivalent.

Cleaning of metal surfaces is necessary when the original galvanized or other anti-corrosion material has been burned off during welding or heating operations. Extra care will be required when removing the residue from areas such as the interior surfaces of box-type construction and when the configuration of the exterior panels limit access to the interior surfaces.

One or more of the following methods will remove the residue.