![]() After fixing the anglebead in place, apply plaster to the area with a trowel and tie it in to the edge of the existing plaster. ![]() Fill the damaged area with plaster making sure it is flush with the edge of the batten. Temporarily fix a batten vertically to the wall on one side of the damaged area. Apply the finishing coat with a trowel, tying in the edges to the surrounding wall surface.When the undercoat has set mix the finishing coat in a bucket until you have a creamy consistency similar to melting ice cream. ![]() When the undercoat is tacky, use a nail or sharp edge to score the plaster to make a key for the finishing coat.If the wall is to be painted, leave a 3mm recess from the top of the surrounding surface area to apply a coat of finishing plaster to produce an even smoother finish.After the plaster has completely dried out, use a power sander or a fine abrasive paper to smooth the area. Wear protective goggles and a facemask when carrying out this task.If the wall is to be decorated with wallpaper apply the ready-mix plaster until it is level with the original plaster surrounding the damaged area.Build up the level gradually, letting each layer stiffen slightly but not dry, before applying the next layer. Having mixed the plaster, fill in the damaged area with a plastering trowel or filling knife held at a slight angle.If the brickwork or blockwork has been exposed splash water over the area. Brush away dust and debris from the damaged area.Use a cold chisel and a lump hammer to chip away the crumbling plaster until the surface is firm all round.As a rough guide, 10kg should cover about 1.5 sq m (1.8 sq yards) at a thickness of 10mm (4in). Always mix the plaster according to the manufacturer’s instructions, but generally 1kg of powder is mixed with 500ml of water. Larger areas of damage can be patched using a one-coat plaster. ![]() Fill in the damaged area using a plastering trowel gradually building up the layers. ![]()
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