GM Service Manual Online
For 1990-2009 cars only
  1. Clean the surface of any contaminants by washing with soap and water.
  2. Spray the wheel with Amchem #33, or equivalent. Let this soak 1-3 minutes.
  3. Rinse with water and blow dry.
  4. Mask the tire off.
  5. Finish with Ditzler Delclearâ„¢ acrylic urethane and Ditzler Ultraâ„¢ urethane additive, or equivalent. Use the following three coats:
  6. 5.1. 1st coat -- Light mist coat, let flash
    5.2. 2nd coat -- Light, let flash
    5.3. 3rd coat -- Heavy, double wet coat
  7. Let dry for 24 hours or, if necessary, flash for 30 minutes. Force dry at 60°C (140°F) for 30 minutes. Allow to cool for 30 minutes before mounting.
  8. Balance the tire and wheel assembly. Replace the original balance weights with coated weights.
  9. Mount the weights in the marked positions. Remove the masking from the tire.