You should use a slow drying compound so you will have to wait a day or two before sanding it with a fine-grit sandpaper. To make sure that you have an even wall, fill up any remaining flaws and gaps with thin drywall mud. Smooth it with a sanding block after it has dried. The mud dries out fast so prepare only what you can use for a few plaster holes. You can also apply it over blemishes and small cracks that you can find. Apply it over any patches that are not flushed with the wall. Once the patch has sufficiently dried, smooth it over with 25-minute drywall mud. To avoid having a patch that is thicker than the plaster wall, smooth every patch down with the putty knife. If it is an extremely large hole, you can apply the patch in several layers that are less than 1/2 inch thick. After explaining to Kevin that his paint job is only as good as the prep work, the two discuss where cracks are most likely to occur before diving into a few repairs. Apply it into the plaster holes using a putty knife to drive the patch deeper into each hole. Under 30 Estimated Time 4 hours Mauro Henrique gives Kevin O’Connor a lesson on patching cracks in plaster and drywall. Mix your plaster patch in a masons pan or small bucket. You can use a cloth or spray bottle for this. You are now ready to patch the plaster hole. You can make it the same size as the hole since you will be filling it up with a patch anyway. The drywall should be around a 1/8 inch thinner than the depth of the plaster hole. Attach it to the brick behind the plaster with screws or plastic nails. If it is a few feet in height or width and more than ½ inch deep, you can use the drywall as a base. These small, plastic anchors are easy to use and can be attached to just about any surface. Remove all the small debris and dust on the area first with a shop vac before assessing the damaged area of the plaster wall. November 10, 2022by justpick If you’re looking to add a bit of decoration or structure to your plaster walls, wall anchors may be the perfect solution for you. When using a putty knife, ensure that you do not accidentally remove good plaster as well. If you find an area where the plaster is cracked or crumbled, remove the portion carefully all the way to the brick wall or lath. Alternatively, you can use your hands if you do not have a putty knife. You can use a small putty knife to test for damage and cracks on the entire plaster wall surface.
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