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-   -   How to fill around this box (http://www.diychatroom.com/f101/how-fill-around-box-177053/)

Dorado 04-13-2013 03:01 PM

How to fill around this box
 
1 Attachment(s)
The plaster in the picture is about 1" deep. It was made the old fashioned way with layers of different plaster. Is there a single product today that I could use to fill a 1" deep x 1" wide gap like this or do I need to square the hole better and tape in pieces of drywall before I patch it?

Before you say I should have used an old work box, there's a ceiling inside the wall directly above where I want the bracket, so the wings wouldn't work (yes, I could have put the box slightly lower, but I didn't and I prefer the more secure new work brackets), and there's a wall directly to the left so a mud ring wouldn't work. I plan on installing a "screw block" behind the mesh with lath screws so I could screw in the bracket.

HARRY304E 04-13-2013 04:13 PM

Quote:

Originally Posted by Dorado (Post 1158474)
The plaster in the picture is about 1" deep. It was made the old fashioned way with layers of different plaster. Is there a single product today that I could use to fill a 1" deep x 1" wide gap like this or do I need to square the hole better and tape in pieces of drywall before I patch it?

Before you say I should have used an old work box, there's a ceiling inside the wall directly above where I want the bracket, so the wings wouldn't work (yes, I could have put the box slightly lower, but I didn't and I prefer the more secure new work brackets), and there's a wall directly to the left so a mud ring wouldn't work. I plan on installing a "screw block" behind the mesh with lath screws so I could screw in the bracket.

What's going in the pipe?

Dorado 04-13-2013 04:28 PM

Two coaxial cables, but I may split them when they exit the tube so I'll have four coming out of a wall mounted box. I'll put raceway there eventually.

user1007 04-13-2013 06:54 PM

Could try canned foam. Then saw it off flush and skim coat to match the wall.

Build it back up with patching plaster? Drywall mud doesn't always work so well in big amounts with plaster.

They make mesh patching material that is rigid. Cut it, apply mud to blend it in. Paint store will have large pieces but a box store will probably only have little ones, if at all.

Dorado 04-13-2013 10:05 PM

I just remembered that I have fire block sealant but I'm not sure if anything sticks to it and it doesn't say how thick you can make it. I think I'll use it and put drywall tape over it. The rigid patch sounds thick.

jsbuilders 04-13-2013 10:55 PM

Two ways I would do it depending on how much time you want to spend on it, and skill level

Mesh first then a fiberglass reinforced mortar or bonding cement then plaster (not joint compound)

Or a quicker way would be mesh and bondo sand to desired smoothness

Dorado 04-17-2013 04:14 PM

1 Attachment(s)
I assembled the Wiremold "starter box" temporarily to see how everything fits. The low voltage bracket will stay in there when I fill around and behind it. It flexes slightly but it's strong enough for driving screws. No decision on the fill yet.

TrailerParadise 04-30-2013 10:14 AM

You could get a jumbo size faceplate at Home Depot... not the best option but it might work...

Dorado 04-30-2013 11:12 AM

2 Attachment(s)
I filled it with a fire caulk and joint compound and used a single gang box. The first three coats of joint compound cracked a little (parts were 1/2" thick), but the last one worked. I'm adding another coat because I want the box to lay slightly more flush against the wall with no gaps. There are two pipes in the wall covered with asbestos and a breeze comes from the hole on windy days. I may look into how to test air for asbestos.

Seattle2k 04-30-2013 12:59 PM

asbestos testing isn't really a DIY task. Have a testing company come in and do an air sampling. They'll then analyze it under microscope and let you know how much is in the air.


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