Mix up some powdered plaster patch with water according to the package directions. When the adhesive is dry, remove the screws and caps. Wipe it off the wall with a rag before it dries.
#Hd plaster patch crack#
Squeeze a generous portion of construction adhesive into every hole that is not marked with an X.Īpply adhesive liberally all the way around the edges of any missing plaster chunks.Īfter you apply the adhesive, fasten screws and plaster caps through the crack and into the lath, tightening gently.Īdd screws and caps around the edges of the large, missing sections to draw the edges and adhesive firmly to the lath.Īs the caps tighten against the plaster and pull it back to the lath, some adhesive may ooze out. Let the glue mixture dry for a couple of hours. The glue mixture may pour out of the holes, so keep damp rags handy. This step can be messy, especially if you are working on a ceiling. The idea behind using the PVA water and glue mixture is that it will make the dust and debris behind the plaster congeal so that the adhesive will adhere with the most durable bond.
If the plaster cracks are very minor, I often skip this step. Fill a syringe or spray bottle with the glue mixture, and squeeze or spray it into the holes. Mix a 50/50 ratio of PVA glue and water in a small container. If your drill bit goes between the lath, use a pencil to mark that hole with an X. The masonry bit will go through the plaster and bump up against the lath. Simply incorporate the new sections into the repair. You may lose more plaster during this process, but that is normal. Using a 3/16″ masonry bit, drill holes, every 2-3 inches, approximately 1″ away from the crack on both sides and all the way around any missing chunks of plaster. I often use a shop vac and a scraper for this task. Joint Compound (linking my favorite brand) or Plaster of Paris.The formula works for many applications, including plaster. Construction adhesive – My favorite brand is Loctite Power Grab.Plastic syringes or a spray bottle – Syringes work best.PVA glue – I use plain old Elmer’s school glue.4″ putty knife, or your preference of tools for spreading wall patch.My apologies for not providing the very best information, and thank you to John from Phoenix Restoration for helping me learn. However, I will be adding some lime plaster from to my basement supply shelves. To be honest, I mostly use joint compound for small repairs. Because I now know better, I wouldn’t recommend Plaster of Paris for any sort of large job–maybe a nail hole or two.
It will simply wash away if water becomes an issue, whereas lime plaster holds up. Gypsum plaster does not function the same way as old-fashioned lime plaster. When I wrote this post, I didn’t really pay attention to the fact that Plaster of Paris is a gypsum plaster vs. This how-to post should get you started off on the right foot, whether you want to use my hybrid approach or stick to only traditional materials.Įdited 6/24/20 – I had a great conversation with Phoenix Restoration. I mentioned it on Instagram, and there were several requests to share the plaster repair process. Last month, I started painting the living room bookshelves, and I found a few damaged plaster sections. Since that is the case, I’ve been using a hybrid approach to repair plaster. Of all the problems we have in BHH, happily damaged plaster has not been one of the major ones. Then, we did have a wee cave-in of the ceiling in the living room in 2015, but overall, we hit the old house lottery in this department. In 2014, when we moved into the house, the walls in the boys’ rooms were a mess, and fixing plaster cracks was pretty much our very first DIY job here.
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