Body - Paint Spotting/Discoloration On Top Surfaces
55 Paint spotting on top surfaces55 11 13
2014055/7
April 14, 2011.
Supersedes Technical Service Bulletin Group 55 number 10 - Old dated May 6, 2010 for reasons listed below.
AFFECTED VEHICLES
CONDITION
After removal of the Full Body Cover, spotting or discoloration in the paint of the top surfaces is found. Spotting appears as a stain or shaded area in the paint.
TECHNICAL BACKGROUND
Moisture is trapped under Full Body Cover and against the painted surface, causing discoloration.
PRODUCTION SOLUTION
In preparation.
SERVICE
Do not paint the affected panel for this condition.
This condition may be temporary, and even in more permanent cases, this condition can be repaired. The severity of this condition will determine the course of action. Treat minor conditions as follows:
1. Hold heat gun approximately 3 in. away from affected paint surfaces and apply heat using slow oscillating motions until discoloration is gone.
2. If discoloration remains, wipe the heated area with Isopropyl alcohol and repeat procedure to increase surface drying.
If this is not successful and buffing is required, follow these guidelines:
1. Ensure that the affected surface is completely clean, dry, and free of all dust and moisture.
2. Each buffing process will be done with a variable speed buffer set to 1,400 rpm. Using a double-sided 3M(TM) Superbuff Wool Pad attached to a 3M(TM) Superbuff Adapter, apply 3M(TM) Perfect-It(TM) Rubbing Compound to the stained area. Buff the area just enough to clear the stain.
3. Using a gray foam waffle pad attached to a 3M(TM) Perfect-It(TM) Backup Pad, apply 3M(TM) Perfect-It(TM) Machine Polish to remove the compound swirls.
4. Using a blue foam waffle pad attached to a 3M(TM) Perfect-It(TM) Backup Pad, finish the area with 3M(TM) Perfect-It Tariffing Machine Polish(TM).
5. Buff entire panel for proper blending. Remove any remaining haze or residue with a detailing cloth. Apply wax to repaired panel as necessary.
WARRANTY INFORMATION
REQUIRED PARTS AND TOOLS
ADDITIONAL INFORMATION
All parts and service references provided in this TSB are subject to change and/or removal. Always check with your Parts Department and service manuals for the latest information.