CRACKED PAINT USING RM HIGH SOLIDS RAPID FILTER

VEHICLES AFFECTED: All Affected Vehicles

The following is a new procedure for refinishing a vehicle with cracked paint.

This procedure involves the use of a 2-part primer surfacer followed by topcoating with ACRYLIC ENAMEL. Stripping of the original topcoat, is not required. This procedure is only recommended when the cracking is severe enough to warrant refinishing of the entire vehicle. For single panel repairs, the traditional method of topcoat stripping followed by colour coating is still preferred. The new procedure involves the use of a high solids primer system from R-M/Inmont.

R-M High Solids Rapid Filler 512-2000 Primer 590-0-100 Hardener

This material actually fills and seals the cracks when sufficient build is applied.

To ensure success, strict attention must be given to the following:

1. Clean entire paint surface with Wax and Grease Remover.

2. Sand affected areas (ie,. cracked) with 120 sand paper.

3. Sand remaining surfaces with 280 or 320 sand paper.

4. Wipe down surfaces with Wax and Grease Remover.

5. Mix R-M High Solids Rapid Filler primer per manufacturer's directions *.

6. Apply 4 - 5 wet coats of R-M High Solids Rapid Filler primer over affected areas. A build of 4 mils is required. Take appropriate safety precautions per manufacturer's directions *.

7. Let primer dry for 16 hours per manufacturer's recommendation.

8. Sand primer with 320 (wet or dry sanding is permissible).

9. Topcoat with ACRYLIC ENAMEL per manufacturer's directions *.

Note: The R-M High Solids Rapid Filler must not be used on plastic. ----- Plastic parts such as fascia header panels etc. should be masked prior to R-M High Solids Rapid Filler application.

This material also provides adequate protection when used over bare metal.

Final total film thickness could range from 8-10 mils.

Care should be taken to properly mask mouldings around stationary glass to ensure satisfactory appearance.

CAUTION:

These paint systems require additives containing isocyanates. It -------- is essential that all recommendations and warnings listed on the container label for materials selected be followed.

It is mandatory that full face mask respiratory protection be worn.

It is mandatory that the paint booth have a positive pressure air supply.

Such protection should be worn during the entire mixing and painting process. Persons with respiratory problems, or those allergic to isocyantes must not be exposed to isocyanate vapours or spray mist.

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.