In patching a hole, which step is performed first?

In patching a hole, which step is performed first?

• A. Remove damaged area
• B. Install backing
• C. Apply patch material
• D. Feather edges

Answer: (A)

Removing the damaged area is done first because you need a clean, sound surface to start the repair. Deteriorated material can prevent patch adhesion and may fail again if left in place, so you clear it away to expose solid edges and a stable base for bonding. After that, backing is installed to give the patch something to anchor to and to fill behind the patch, which helps prevent sagging or hollow spots. Next, you apply the patch material to fill the hole and build up to the surrounding surface, creating a solid, integrated repair. Finally, you feather the edges to blend the patch with the surrounding area, producing a smooth transition and a seamless finish.

Removing the damaged area is done first because you need a clean, sound surface to start the repair. Deteriorated material can prevent patch adhesion and may fail again if left in place, so you clear it away to expose solid edges and a stable base for bonding.

After that, backing is installed to give the patch something to anchor to and to fill behind the patch, which helps prevent sagging or hollow spots.

Next, you apply the patch material to fill the hole and build up to the surrounding surface, creating a solid, integrated repair.

Finally, you feather the edges to blend the patch with the surrounding area, producing a smooth transition and a seamless finish.