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How to Make Large Plaster Repairs & Skim Coat

Learn how to make large plaster repairs and how to skim coat from Brushed Interiors founder David Sartori in this Howcast video.

Transcript

How to patch larger holes. Now, here's where your Pitbull [SP] Terrier slammed into the wall playing football with your kid and these are oh, no this is scary, you know? This is a very bad hole. How are we going to fix this? Now, no need to worry about big holes and drywall or sheet rock. Here's a smaller hole here as well. I'm going to show you now a quick way to fix these.

I'm going to clean this out of any dust and get a little bit of water in there and dampen it up and I'm just going to leave that one. This sucker's ready to go. This is your large metal, mesh patch. Okay? There's different brands of these, but it's very simple. It's a metal plate with some mesh backing. It sticks right over your hole. No problem and you simply fill it in with your plaster compound mix.

Here we have joint compound, Plaster of Paris and a little bit of water. We mix these together about 50, 50 and we go ahead and fill it in. It'll probably take two coats, but we'll put our first coat on. We'll go right over the middle of it as well. The second coat can be simple joint compound which'll be smoother finish. The first coat has the Plaster of Paris. I'm just working it in until I'm satisfied. Okay, great. I'm happy with that for the first coat.

Now, here's a little trick of the trade that you may not have heard of. If I have a little newspaper, in this case just some random paper, I'm going to tear off a piece and dip it in water. Squeeze it. I think I'll make it a little bigger. I normally use newspaper for something like this, but you can take newspaper or paper and wad it up a bit and stick it into a hole and push it in so that it is more or less flush with the wall. You don't want it to come out. All right.

Now, we could let that dry a bit after which I would probably coat it a little bit with my bin primer. This is the fix all primer that I like to use on job sites and it just kind of seals it up so that the plaster has something to stick to. That would be how you would fill a medium size hole that's just a little too big for straight joint compound or a patching compound. You know, this is much bigger than a nail hole or a bolt hole from a television, but it's a little too small for a large patch like that. So, this is just a little trick you can use. We'll let that dry and we'll put our plaster on.

Okay, let's take a look. This is that large patch here. I've got my metal mesh patch right underneath here. What I did was I sanded that first coat down and using my joint compound, I put a second coat, nice and smooth right on top using a wide knife. Let that set, sand it again and went ahead and rolled it here with our water based primer. So, that's all sealed up. That's nice. That's nice and solid, nice and smooth and this wall is ready for paint.

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