Exterior grade plaster is also known as stucco and is a cement-based finishing product. Plaster is available in dry form and can be mixed with water to make a thick paste. Home owners and contractors apply wet plaster to the exterior plastering in wellington walls of homes by hand or using a machine. The plaster forms an outer shell that is strong and durable as it dries. There are many color options and textures available for exterior grade plaster. Because it is resistant to both hot summers as well as cold winters, it is a popular choice for home finishing. Plaster can be damaged by accidents, house settlement, or access to areas behind solid masonry.
You can remove loose plaster by hand until it is no longer possible to do so.
With a masonry cold chisel and hammer, create a squared-off area around the damaged plaster. Use a masonry cold chisel and hammer to chip away any area that is 2 inches or more in size.
Cut a piece from metal mesh screening to exactly the size of the hole. To make the screening, use metal shears. Galvanized nails or heavy-duty galvanized staples can be used to secure the metal mesh in the hole.
To make a paste-like consistency, mix the plaster and water in a bowl.
Apply a thin coat of epoxy-based bonding agent around the edges of your hole.
Use a trowel to press the plaster into the metal mesh. You should use enough plaster to fill the hole halfway. To create ridges, drag the trowel’s edge through the plaster. Dip the trowel in the plaster, and then apply a second coat. The second coat should be applied flush with the plaster.
Use your fingers to remove any pieces that are stuck in the crack. To remove more pieces, insert a pointed trowel in the crack.
Use a small brush or a handheld brush to remove dust and debris.
To make a paste-like consistency, mix the exterior-grade plaster and water in a bowl.
A light coat of epoxy-based bonding agent should be applied to the crack’s edges.
Use a flexible putty blade to work the plaster. To finish flush with the surface, press the plaster deeply into the crack.