DO IT YOURSELF RESOURCES > PROJECT TUTORIALS > REPAIRING DAMAGED DRYWALL
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Repairing Damaged Drywall
DIRECTIONS
Remove any wallcovering from the wall (see “Removing Wallpaper” for more details).
Remove any loose facing paper by cutting back to sound areas with a razor knife or sanding off using 80-grit sandpaper. To locate invisible bubbles or blisters, tap the surface of the wall with your fingernail. If you hear a flat, hollow sound, the facing paper has separated and bubbled. Cut the paper just outside the bubbled area with a razor knife and pull the damaged paper off towards the cut for a clean, sound edge.
Protect floor area with drop cloth. Apply one coat of GARDZ® liberally to the entire wall using a brush, medium nap roller or sprayer. When applying GARDZ® with a roller, start from the bottom of the wall and press gently as you move the roller upward to prevent the sealer, which is very thin, from dripping on to the floor. GARDZ® penetrates and seals the paper, drying to create a rock-hard, moisture-resistant surface.

For small areas of damaged drywall, use GARDZ® Surface Sealer trigger spray.
When dry, the surface should have a uniform sheen. Check for this by looking down the wall at an angle. Go over any dull areas with another thin coat of GARDZ® until the whole surface has a uniform sheen. If the facing paper blisters, cut out the blister and reapply GARDZ® to exposed paper. Allow at least three hours to dry.
If necessary, apply skim coat or spackling to the wall after GARDZ® has completely dried to achieve a smooth, uniform surface. Allow to dry completely before sanding smooth.
Remove all dust from the surface and seal skim-coated areas with a final coat of GARDZ®. Allow to dry another three hours before applying your desired primer, paint, wallcovering or texture finish to complete your look.
Print Version
ESTIMATED PROJECT TIME
One Day
TOOLS & SUPPLIES
GARDZ® Problem Surface Sealer
Medium Nap Roller, 3” Synthetic Bristle Brush or Paint Sprayer
Drop Cloth
Sandpaper
Drywall Knife or Razor Knife
Spackling Knife
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