How to Repair a Crack

Step 1

Using 100-grit sandpaper, remove any loose debris from the cracked area.

Step 2

Again using 100-grit sandpaper, lightly sand any raised or rough areas. Remove any dust or debris from the area with a water-dampened rag.

Step 3

Using a putty knife, spread a thin layer of patching material into the cracked area. Allow it to dry.

Step 4

Use 220-grit sandpaper to smooth the patched area and make it even with the surface.

Step 5

Remove any final dust or debris from the finished repair.