Cracks can appear in drywall due to settling, improper installation, or accidents. The homeowner will often focus on the crack as an eyesore of the room so it should be repaired. Fixing the crack is easy and requires only a few simple tools. The wall will soon be in pristine condition and the homeowner will no longer need to worry about covering up the area.
Step 1: Using the taping knife, scrape the edges of the crack to remove any dust.
Step 2: Pour drywall compound into the mud pan or on the plywood piece. This allows it to be easily loaded onto the taping knife.
Step 3: Using the 6-inch taping knife, apply a light coating of drywall compound to the crack. The coating should be wet but it should not be thick.
Step 4: Lay the drywall tape over the applied compound. Using the taping knife, press the paper drywall tape onto the compound. If the crack line is very crooked, cut the drywall tape into short lengths and apply these to follow the crack line.
If fiberglass tape is being used, it is self-sticking so it will not need to be embedded into the compound. The other steps should be followed.
Step 5: Use the 10- or 12-inch taping knife in a smooth scraping motion to scrape away excess drywall compound.
Step 6: Use the 6-inch taping knife to apply a thin coat of compound over the tape, making sure to feather the edges. Allow this area to dry overnight.
Step 7: Once the first coat has dried, apply a second coat using the 10- or 12-inch taping knife. This blends out the original edges. Make sure to feather the edges during application. Allow the area to dry.
Step 8: Apply a final coat using the 10- or 12-inch taping knife and feathering the edges. Allow the area to dry.
Step 9: Use the fine grit sandpaper and sanding block to smooth out the surface of the patch. Remove any dust or residue.
Step 10: Use primer to paint over the patch.
Step 11: Paint over the patch using the wall color paint.