Backing Patch Fabrication: Notes

Before proceeding, refer to General Plastic Repair Instructions  and Plastic Repair Precautions .

The following are 3 methods of fabricating a backing patch:

Fig 1: View Of Backing Patch Fabrication
Courtesy of GENERAL MOTORS CORP.
• Method 1: Fabricating a patch directly on the back of the damaged area. Layers of repair material and glass cloth mat are applied one at a time to a clean and sanded surface.
• Method 2: Cutting a patch from a scrap piece of a replaced panel.
• Method 3: Fabricating a patch on the outside of the damaged area to be reapplied to the inside of the damaged area.

Any method can be used, but one method may be easier than another depending on the given situation. Read over each of the following methods in order to decide which will work best in a given situation.