2 Answers

Instructions
Things You'll Need

* Cold chisel
* Hammer
* Utility knife
* Sponge
* Patching plaster
* Bucket
* Putty knife
* Carpenter's square
* Drywall joint compound
* Drywall knife
* Fine sandpaper
* Wood block

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1.
* 1

Chip away the loose and damaged plaster on the inside perimeter of the hole using a cold chisel and a hammer. Carefully pull out any debris. Cut the inside edges of the hole with a utility knife, making the hole wider at the base, next to the lath, than at the surface.
* 2

Wet a sponge with water. Dampen the lath behind the plaster and the interior surface of the hole using the sponge. Mix the patching plaster in a bucket according to the manufacturer's instructions. Fill in the hole with the patching plaster using a putty knife. Apply it to within 1/4-inch of the surface of the finished wall. Allow 24 hours for the patching plaster to dry.
* 3

Mix a second bucket of patching plaster following the manufacturer's instructions. Wet a sponge and dampen the first layer of plaster inside the hole. Apply a second layer of patching plaster atop the first using a putty knife. Run the edge of a carpenter's square down the wall, across the hole, to smooth the plaster so that it is flush with the finished wall. Wait 24 hours for the patch to dry.
* 4

Smooth down any bumps in the patching plaster that dried on the wall around the outside perimeter of the patch using fine sandpaper. Apply a smooth coat of drywall joint compound over the patch using a drywall knife. Make sure the compound is smooth with the surrounding wall area, especially around the edges of the compound. Wait 24 hours for it to dry.
* 5

Wrap a piece of fine sandpaper around a wood block. Sand the dried drywall compound to create a smooth surface. Paint the patch to match the surrounding wall.


Read more: How to Repair a Hole in a Plaster Wall | eHow.com http://www.ehow.com/how_7545367_repair-hole-plaster-wall.html#ixzz1TG7iCNe5

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