Posts Tagged ‘powdery’

Keeping Dust to a Minimum

February 5, 2022
Most homes in the Houston area have textured walls. These bumps are unsightly under wallpaper, and also interfere with consistent adhesion. So I like to skim-float the walls with drywall joint compound (I use the Plus 3 version) and then sand them smooth.
Sanding this stuff creates lightweight, powdery dust that sifts through the air and gets over everything. Homeowners tend to hate that. 🙂
So here I’ve created a ” tent ” out of painter’s plastic along the walls where I will be sanding. This creates a pretty darned effective barrier that prevents dust from getting into the rest of the room.
Here’s the dust created by smoothing just the top 5′ of wall area. And my ShopVac to clean it all up.
I find it easiest to let the dust fall onto the floor and even the carpet. It’s easy to vacuum dust up off these surfaces. Dropcloths and plastic tend to get sucked up into the vacuum hose, and the dust doesn’t come with it. I once tried protective self-adhesive plastic that’s made to cover carpet … but it was extremely difficult to unroll, plus, it was even more difficult to get back off the floor. I truly feared it would pull off the surface finish of the floor along with it.
The vacuum gets most of the dust. But there is still a fine, invisible layer left on surfaces. So you need to take a damp rag and wipe the floor.
I also vacuum the walls. After the visible dust is gone, it’s imperative that you take a damp sponge and wipe residual dust off the walls. You have to rinse the sponge frequently to get all the dust. If not, it’s like, as I like to say, it’s like flouring a cake pan – the wallpaper will kinda stick – but not really stick.
Once the walls are perfectly dust-free and dry, follow up with a wallpaper primer.
Then go and hang your wallpaper!

Treating Mildew on Walls Before Wallpapering

July 11, 2018


When the old wallpaper was pulled off, surprises were revealed! Here you see mildew (don’t worry, it’s not mold) that had grown under the paper where a water leak had lead to damp conditions, probably exacerbated by the thick, non-breathing, vinyl wallpaper.

Mildew will bleed through wallpaper, and it can also create a powdery colony that will not provide a stable surface for the wallpaper to grab ahold of.

To kill the mildew, I washed it with full-strength bleach. When that was dry, I went over it with an oil-based stain blocker. I like the product KILZ Original.