1/9/2024 0 Comments Cracks on plaster wallsThe plaster would suck up a decent amount of water from the Plus 3, but I didn't feel the need to killz it before hand. For that I just put fiber tape over them and Plus 3. ![]() I also had much smaller cracks, like hairline size. My rooms look great and this is how I tackled the larger cracks with gaps in them. It also lets you feather and disappear the patch job into the wall.Īpply layers of Plus 3 until your happy with it. This step allows you to smoothen out the Durabond you were unable to sand down. After the first two times, I skipped this step and went straight toĪpply Plus 3 on the sanded Durabond. I only did this the first couple of times. It works better but can take a lot off.Īpply second coat if not to your liking and feather. Sand the Durabond down to as smooth as possible with 80 or 120. It's a bit annoying to sand down (it dries much harder than Plus 3) so the smoother you can get it at this stage, the better. Make it as smooth as possible with your putty knives. Similar to how the pre-mix stuff is with a little bit of added water. Thin enough to move around and flatten, but thick enough so that it wasn't a soup. I tried to get it like a thicker pancake batter. Another alternative is to create your own plaster mix or hire a company to make a specialized mix (I didn't do this as Durabond seemed to work well).* It was also specifically rec'd by the plaster guy. I don't know why, but Durabond has been much better for these walls (1925 lathe/plaster house) than pre-mixed Plus 3, the regular green bucket, or EasySand. Let Killz dry.īuy some Durabond 60 or 90. This stops the plaster and/or wallpaper from sucking up all the water. ![]() ![]() Plus this lets you get the joint compound smoother.Īpply killz interior/exterior (the black one works best, but also the red one works well) on, in, and around the crack. If you have 1920s wallpaper, then cut a few inches around the crack off so that there is more wall for the joint compound to grab. Important to get all the loose plaster out of inside the crack so the new joint compound can grab the wall. Scrape the crack around and inside with a putty knife or razor blade. Got talking to them and the guy was super helpful and encouraged DIY-ing it. My method and copied from when I hired a professional plasterer to fix some massive cracks in both the ceilings and side walls.
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