Posts Tagged ‘stick’

You’ve Gotta Get Dust Off The Walls

September 9, 2020


If you look closely at the right side of the corner, you will notice dust on the textured wall.

Before anything can go on the wall – primer, wallpaper, smoothing compound – all the dust needs to be removed.

This is because nothing sticks to dust. Any sort of stress on the wall, such as new wallpaper drying and shrinking and putting torque / tension on the walls, or wallpaper expanding and contracting with temperature and humidity changes, can cause the material to let go from the wall, most usually at the seams.

My example is that it’s like when you flour a cake pan – the paper will kinda stick, but it won’t really stick.

So before I started to apply my smoothing compound to the walls, I went around the entire master bedroom with a damp sponge and wiped the dust off. A little dust fills up a sponge quickly, so I had to keep rinsing it clean frequently.

Paint Problem

May 30, 2020


Hard to see, but the paint on this wall is crackling. This is most likely because there are unstable and incompatible layers of paint underneath.

In an old house like this (1940’s), there will have been many treatments to the walls over the years. Original oil-based paint, covered by latex paint, gloss paint, dust, more colors and layers of paint. And virtually never does the workman prep the walls properly.

Latex doesn’t like to stick to oil, and most paints don’t like to stick to gloss, plus other factors. So what happens is that all these disparate layers rebel, and sometimes you end up with flaking or peeling.

If wallpaper is applied on top of these unstable walls, when it dries and pulls taught and puts tension on the wall surface, there is the potential for these layers to give way, and you can end up with a curled seam, under which are layers of delaminated wall.

Sticky Dots

May 7, 2020


This grasscloth wallpaper by Thibaut is called Union Square. It has not just the texture from the natural reeds of grass sewn onto the backing, but also 3-D square “dots” of thick plastic or resin or vinyl … Doesn’t matter what the material is … There are raised, textured “dots” marching across this paper in a neat, orderly fashion.

But plastic can be sticky. On all of the bolts, the paper labels stuck to the plastic dots. Unrolling the grasscloth caused the labels to tear off strips, which remained stuck to the plastic dots. These scraps of paper could not be removed, so I had to cut off and discard the top 16″ or so of each bolt.

The really sad thing about this is that the wall height was such that I could have gotten three strips out of each double roll. But with having to discard paper from the start of each bolt, we were left with only enough remaining paper on the bolt for two strips.

Even worse on a few other bolts, the plastic dots stuck to not just the paper label, but to the paper backing of the grasscloth itself. This left strips of paper stuck to the dots, and also peeled bits of paper off of the back of the wallpaper – leaving the possibility of paste leaking through and staining the surface.

This sticky defect went through the entirety of each bolt, so there were three bolts that were unusable.

This meant that I could not finish wallpapering the remaining walls. And that we’ll have to send back the defective paper, and the homeowner will have to wait for the company to find non-defective paper, and ship it, and for me to have an opening on my schedule to finish the job.

The Thibaut Customer Service rep has told me that the company is aware of and has worked on this problem. (Thibaut is one company that actually LISTENS to us installers, and makes changes as needed.) Their solution is to place thin plastic wrap inside the bolts, to prevent the dots from coming into contact with any other material, like the paper backing.

I hope the replacement paper comes with this new innovation.

Contractor Patches On Top Of Wallpaper – Bad Idea

February 19, 2019


This home experienced a water leak, and the bottom 2′ of drywall had to be cut out and replaced. When taping-and-floating in the new drywall, the contractor didn’t bother to remove the existing wallpaper, but put his smoothing compound right over it. This is bad enough if the old paper is paper, but this wallpaper is vinyl – something you really don’t want buried under layers of joint compound and new wallpaper.

Vinyl is shiny, and few materials will stick well to it over a period of time. It is also thick, and that increases the likelihood that seams will pop up, even if they are buried under this “mud,” as we call it.

So I took a razor and cut above the contractor’s patch. Then I stripped off all the wallpaper above the patch. This left a difference in height between the patched area and the newly-stripped area, which would create a visible ridge under the new wallpaper. So then I took my own smoothing compound (joint compound) and floated over his patch and the now-bare wall, to eliminate any uneven areas.

Waited for it to dry, sanded smooth, removed dust, primed with Gardz, and finally was able to hang the new wallpaper.

This took a LOT more time than I originally planned for this job, but it was worth it to keep vinyl wallpaper from being underneath the new paper, and to prevent any bumps or irregularities from showing under the new paper.

No Primer Under Wallpaper = Torn Drywall

July 24, 2017

Digital Image

Digital Image

Digital Image


Digital Image


Today I stripped wallpaper off a kitchen where the previous installer had not bothered to prime the walls first, but hung his paper right on top of new Sheetrock.

This is very bad for many reasons.

` The walls will not have stick, so the new wallpaper will not have a proper surface to cling to – and this can cause curling seams, loose areas, and other problems.

` The walls will not have slip, which will make it much harder to install the new paper.

` With nothing separating the new wallpaper from the drywall, the paper will bond to the drywall, making it darned near impossible to get it off later.

This is what happened today. After I removed the top inked layer, and after I soaked the remaining paper backing for a while, the old wallpaper came away from the sections of the wall that were coated with joint compound or paint or wood stain.

But in areas of the wall that were just uncovered Sheetrock, the wallpaper grabbed tightly and could not be pulled off or scraped off. In stripping the wallpaper off these areas, some of the drywall came away, too, leaving areas that were torn and damaged.

These uneven, torn areas are problematic, because they leave bumps and ridges showing under the new wallpaper, and because, since they have no protective coating, they absorb moisture – from water, wallpaper paste, wallpaper primer, or other, and then they expand and then they bubble. Ridges and bubbles look like Hell under wallpaper.

The first photo is a wall to the right of the kitchen counter, where differing layers of drywall have been pulled off the wall. The dark brown area is the deepest.

The third photo is a newish product that is wonderful for sealing and “repairing” torn drywall. Gardz (by Zinsser) is a penetrating primer / sealer that soaks into the surface, binding things together. It dries quickly. When it is dry, it is impervious to moisture – which means that you can apply a water-borne primer over it, or you can skim-float it with joint compound, and not worry about bubbles appearing.

I applied Gardz to these areas of torn Sheetrock, let it dry, then skim-floated over it with joint compound, and then sanded it all smooth. Then I applied a second coat of Gardz.

In addition to making the surface very stable, Gardz serves as a good primer for wallpaper, because it’s molecular structure on its dry surface is such that the molecules of paste, attached to the new wallpaper, will grab on and hold tight.

In this case, because I like a white pigmented primer, and because I like hanging on it, I went over the walls with a coat of Roman’s Ultra Prime Pro 977, a primer made specifically for wallpaper. The last photo shows the wall after all that work. Finally ready for wallpaper!