For 1990-2009 cars only
Repair Procedure
Important: Follow these guidelines when performing Sheet Metal Compound (SMC) repairs:
• Clean, scuff, and solvent wipe all the areas to be repaired. • For added strength and durability, V-groove and reinforce at least
one side of SMC joints using a tacky mesh tape or equivalent. • When partial panel replacement is performed, use 50 mm (2 in)
backing patches made from SMC or E-coated steel, as a reinforcement for
all the butt joints.
- Scuff the area where repair is to be performed.
- Clean the bond area with a lint-free rag using a water-based cleaner.
- Cracks in SMC should be grooved and reinforced on at least 1 side using a tacky mesh tape or equivalent.
- Sectioning joints require backing strips 50 mm (2 in) wide, which can be cut from leftover pieces of SMC.
- Apply a thin coat of Goodwrench Structural Bonding Epoxy GM P/N 12345726, GM P/N Canada 10953521 or equivalent, to the entire joint area extending across the cut lines and across the backing strip.
- Shape and refinish the repair areas as necessary to resemble the original appearance.
| • | Use tacky mesh tape or an equivalent reinforcement matting. |
| • | Allow to cure according to the adhesive manufacturer's recommendations. |
Bonding Procedure
Important: Prepare the surfaces to be bonded according to adhesive manuacturer's recommendations. Many adhesive manufacturers have different preparation methods.
- Use supplies and repair materials from the same manufacturer. Do not intermix systems. Mixing materials from different manufacturers can produce unsatisfactory results.
- Ensure that the surface is clean and dry before applying adhesive.
- Apply a consistent adhesive bond to the prepared surfaces.
- Mechanically retain the panel in place in order to wet out the adhesive along the entire bonding surface.
- Allow the area to cure according to the adhesive manufacturer's recommendations.
