G. Abrasive Cleaning

IMPORTANT:
All iron particles and acids must be removed and the surface neutralized with the above procedure before proceeding. Iron particles and acids which remain will not be fully removed by abrasive cleaning. Small amounts of contamination will wick moisture into the clear coat or through a re-color/clear coat and cause blistering

The goal of abrasive cleaning is to remove the damaged layer of color coat or clear coat (up to 0.5 mil in thickness) using the least abrasive process. The steps below demonstrate the sequence of operations to use on the test section to identify the severity of damage and the repair needed.

1. Measure paint film thickness.

2. Polish and evaluate. If OK Polish all affected surfaces. If NG go to step 3.

Also determine film thickness removed.

3. Buff and evaluate. If OK Buff and then polish all If NG go to step 4.
affected surfaces.
Also determine film thickness removed

4. Wet sand and evaluate. If OK wet sand then buff and If NG go to step 5.
polish affected surfaces
Also determine film thickness removed.

5. Re-clear/color coat after neutralizing surfaces.

6. Apply color coat and clear coat if damage is completely through clear coat

NOTE:

Polishing to remove buffing or swirl marks requires a foam finishing pad on a dual action sander.





3M materials:





Meguiar's materials:

Misc:

8" buffer (1500-1750 RPM)
Dual action sander, variable speed
Terry cloth towels (100% cloth)

NOTE:
Always use separate pads for each liquid (mark the backside of each pad with the type of liquid used) and clean the pads frequently. Use of a wool pad on clear coat is limited to the polishing type of pad and is always followed by a foam Dad on a dual action sander to remove swirl marks.