Patching and Plastering - drywall bubbling after applying mud

We own a home that was built in the 70s and I am trying to remodel my kitchen. The walls were covered with a very course wallpaper. I removed the wallpaper with DIFF and some of the wall board came off also. I tried to repair those places with drywall mud and in some places the wallboard bubbles. I want to paint this surface instead of putting up more wallpaper. Any suggestions?

Go around and cut out the bubbled part. Fill in with mud. There might be a lot of them so take your time. If you have any more walls that you are doing this to then prime before you skim. Prime with either an oil based primer or a product called Gardz by Zinsser. They sell that at any paint store. Not home depot. That works very well on the brown paper.

I'm kind of in the same boat. So let me get this straight.

Put on a coat of primer before repairing the wallboard?

Are the bubbles being caused by the unsealed wall board or is this being casued by the reamains of the wallpaper?:confused: :confused:

Hello JWhite:

Am a bit busy now so I don't have time to go into the detailed explanations of why you are having the problem you are but DO have a solution: look for a product called Plaster Weld, which is a bonding agent. Brush or vacuum all surfaces, paint on the Plaster Weld and then apply your mud or skim coat

Plaster Weld is a water based product and dries in 30 minutes or less.

I do not work for the company and have no idea where to get it where you live. The ONLY place it is available in my area is from a specialty supplier of masonry supplies, forget Home Depot.

Cost is about $25 per gallon but coverage is good and results far beyond excellent.

Here's a link to the manufacturer, perhaps if you hunt on the site you'll find a supplier in your area:

http://www.larsenproducts.com/plasterweld.htm

I feel if you coat the wall with a bonding agent like Plaster Weld, then apply patch and skim coat and prime you'll be sitting in the catbird seat and moving on happily.

Good Luck,

Snowman53

Hey Snowman, does plaster weld completely eliminate blisters? I do a ton of wall repair due to wallpaper removal and blisters are the only problem.

I do a ton of wall repair due to wallpaper removal and blisters are the only problem

Gardz is the best thing for this. I use gallons of this stuff every year.

Also good are DrawTight made by Scotch Paints in Cali, Sherwin Williams Drywall Conditioner, Ben Moore's Masonry sealer.

DrawTight has more solids in it, and dries to a harder, shellac like surface, but Gardz is easier to find and slightly cheaper.

Are the bubbles being caused by the unsealed wall board or is this being casued by the reamains of the wallpaper?

They are being caused by the unsealed wallboard absorbing the water from the mud, causing it to bubble.

My 2 cents