Easy Process Of Repairing A Painted Drywall Seam
After you finish drywall seams, they are supposed to amalgamate into the wall as well as disappear. However, sometimes, the finisher uses inadequate joint compound when taping or applies it intermittently, and the tape bubbles or separates. Additionally, seams that have been accurately & suitably finished can crack if the walls move marginally or if there is a source of vibration within reach. Irrespective of these defects occurring before or after painting the wall, it is still important to repair the drywall tape seam using a new joint compound or mud. In spite of the fact that the wall has a glossy finish, a coat of primer will help the mud stick better.
Things You Will Need
- 4-Inch Drywall Knife & Utility Knife
- 120-Grit Sandpaper & Wall Primer
- Paintbrush & Drywall Joint Compound (Mud)
- Paper Drywall Tape & Pail
- 6- To 10-Inch Drywall Knife & Wall Paint
Step 1: Scrape Away Loose Tape And Mud
First of all, make a hole or channel by digging around the damaged drywall bulge with the help of a 4-inch drywall knife. Use the corner of the knife in order to put an end to bubbles and pull up the loose tape, before using the blade to get rid of any loose or chipped mud. Cut the loose tape off with the help of a utility knife.
Step 2: Sand The Area
Now, sand the area that you have scraped gently, delicately, or softly using 120-grit sandpaper in order to make sure that there are no mud chips left to stain the new mud you need to apply. Apply a coat of wall primer over an area, nearly 2 inches wider than the area you are repairing, with the help of a paintbrush, before allowing the primer to dry.
Step 3: Apply A Thin Coat Of Mud
Apply a thin coat of mud to the repair with the help of a 4-inch drywall knife. Place the new tape on the areas from which you eliminated the tape. The tape sticks better and is easier to scrape if you submerge and immerse it in a pail of water before laying it on the wall.
Step 4: Apply A Second & Third Layer Of Mud
Flatten the tape using the knife, before covering it with more mud, and scrape that mud flat. Allow the tape as well as mud to dry overnight. Spread another coat of mud over the repair with the help of a 6- to 10-inch knife. Using a wider knife will make it easier to flatten the edges into the wall as well as make a flat seam. Allow that mud to dry, before you spread another coat, if necessary.
Step 5: Wash The Wall
Sand the repair with the help of 120-grit sandpaper and then allow it to dry. It is a good idea to wash the entire wall before painting the repair. If the wall is dirty, then it is highly possible that the spot you repaint will be visible. Another possibility is to repaint the whole wall. Remember that gloss and semi-gloss paints have a tendency to highlight drywall imperfections, while flat paint minimizes & understates them. Sand the repair using 120-grit sandpaper.
Step 6: Finish With A Primer And Topcoat
Finally, it is strongly recommended to protect the wall with a coat of wall primer. As soon as the primer dries, topcoat the repair using the wall color.