Fix Drywall Corners
Walls receive their fair share of abuse and, usually, corners take the brunt of it. Although drywall corners are a hardy lot, reinforced with metal or vinyl strips called "beads", they occasionally require repair. Proper corner repair removes ugly gashes and causes cracks to disappear. Mastery of drywall corner repair develops essential drywall skills and offers a step toward larger and more complicated drywall projects.
Instructions
1. Remove damaged corner bead, loose paint and drywall paper. Use a hammer to pry damaged corner bead from the wall. The claw side of a hammer slips beneath the heads of nails. Reduce further damage to the drywall corner by removing nails prior to removing corner bead from the wall. Use the utility knife to cut loose paint and drywall paper from the corner. Flaps of loose paint and drywall paper inhibit the proper adhesion of drywall joint compound. Make straight cuts to leave clean edges.
2. Use sandpaper to smooth ridges and bumps. The sharp edges and bumps created by the removal of paper, paint and corner prevent you from creating a smooth, finished surface. Eliminate inconsistencies by running sandpaper over problem areas. Use a dampened, lint free cloth to remove excess dust and grit from the repair area.
3. Affix new corner bead to the wall. Cut metal corner bead to length with metal shears. Attach metal corner bead with drywall nails. Hold the metal corner bead in place. Place drywall nails into the corner bead's nail holes and pound them into place. To create a smooth, finished surface, ensure that the nails rest nearly level or below the corner bead's surface. Cut vinyl corner bead to length with a utility knife. Attach vinyl corner bead using corner bead adhesive. Spray the adhesive on both the wall and the corner bead. Place the vinyl corner bead over the repair area and press to affix.
4. Apply joint compound over the corner bead. Scoop joint compound onto the drywall taping knife and spread the joint compound in an even layer across the length of each side the newly installed corner bead. Use additional joint compound to fill in holes and gaps. Clean excess compound from the taping knife. Run the clean knife over the wet joint compound to smooth and blend it with the wall's surface.
5. Allow the joint compound to dry. Use sandpaper to smooth and blend the corner with the wall's surface. Apply additional coats of joint compound as needed.
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