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what's the best way to repair a hole in an old plaster wall, not drywall, the kind with wood slats? Answered

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bilham
bilham

12 years ago

A product called Plasterweld will make a difference, and will help tie down the neighboring plaster which is probably a little loose too. It acts like glue. don't let it drip down the wall. A water activated patching compound, squished through the lath and recessed a bit (score it a little as it sets) will make a good base for joint compound. You can sand dried compound with a damp sponge to avoid dust. Prime and paint. When I paint a patch, I brush it on and then roll a dry paint roller over the paint to match the texture of the surrounding wall. Works great.

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caitlinsdad
caitlinsdad

12 years ago

If the hole is not too big you should be able to repair it yourself. Hopefully the "lath" or wood slats are still intact or you may need to replace or add new lath by screwing in some new strips of wood. Real plastering is a lost art. Cured plaster does not sand well because it is so hard. It is finished and burnished in the time it takes to set up firm. If you have a textured plaster wall, all the more harder to match without knowing the proper plaster technique to get it looking right. For a flat wall. It is easier to use spackling paste or compound for small holes not larger than a coin. Use drywall joint compound or patch applied in layers to build up bigger holes. You may also embed some drywall tape or fabric mesh tape to reinforce the repair. Use a spray bottle to wet the drywall knife to smooth out the final layer as best as possible to reduce the need for sanding. The fine dust will get everywhere. Prime and paint afterwards. You can look up youtube videos on wall repair, plaster, drywall to see it actually being done. Good luck.

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mrgre99
mrgre99

12 years ago

Remove all the loose plaster, wet the slats and surrounding plaster and replaster it. dont try to do it all in one go build up a few layers if its quite deep. If you take your time then you should get a good finish. you can always sand it afterwards to get a reasonable finish.