How To Repair Damaged Plaster - May 25th 2016
Soft Bristle Paintbrush
10” Wallboard Knife
150 Grit Sandpaper
Latex Bonding Agent
- - Make sure that there are no leaks in the area of the damaged plaster. If there are any, fix them and allow to dry for a couple of weeks or after next rainstorm.
- - Prepare the room for work by protecting the floor with a plastic cover, take all the paintings off the wall and remove furnishings. Remember to tape around the doors to minimize the dust throughout your home.
- - Gently chip away at the damaged plaster using a cold chisel and a hammer.
- - Using a utility knife, cut along the chipped inside of the edge until the edge becomes smooth and straight.
- - Using a wide, soft bristle paintbrush, apply latex bonding agent onto the edges of the hole and onto the lath.
- - Apply 1 cm (in thickness) of mortar mix using a 10” wallboard knife. Remember that the first layer needs to be cross-scratched when it begins to set; this will help the second layer to stick better.
- - Allow 24 hours to dry.
- - Spray the first coat with water and using the same knife, apply ½ cm (in thickness) of mortar cement of the second coat and remember to cross scratch.
- - Leave to dry overnight, 12 hours minimum.
- - Using the 10” knife, apply the joint compound. Swipe the compound towards the edges evening it with the rest of the wall. Allow to dry for 24 hours.
- - Wet sand the area using 150 grit sandpaper until the area becomes completely even.
- - Use the soft bristle brush to apply a coat of interior primer and allow to dry for 4-5 hours.
- - Complete the project with the final coat of paint.