Posts Tagged ‘coating’

Whimsical Arabian Nights Dance in Powder Room

January 13, 2023
You’ve got to look at this close-up, to notice the antelope and flames / foliage .
You gotta make a decision … The light sconces (they are currently removed, but you can see the electrical boxes where they will be placed) were centered on the vanity top, but the faucet was off-center by about an inch. So I chose to center / balance the pattern on the sconces and countertop. The mirror will be hung between the two light fixtures, so we’ll end up with a pleasing, balanced look. The faucet isn’t exactly in the middle of the design motif, but no biggie – there’s going to be a mirror there, anyway.

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Corner going around shower. Note the window looking into the shower.
Although the website specs said this is a pre-trimmed non-woven material , that was incorrect. Turns out it had an unprinted selvedge edge that had to be trimmed off by hand . Here I’m using my straightedge and razor blade to remove this selvedge. This takes precision and a LOT of time .
The manufacturer usually provides trim guides to help you know where to cut. But it’s usually better to trim to the pattern – determine an element in the design motif that will meet up with the corresponding motif on the opposite side of the strip when the strips are hung on the wall, and use that as your guide . Be sure to trim off the trim guide marks, or they will show on the wall.
The pattern is called Arabian Nights and is by Relativity Textiles . I’ve never worked with this brand before. I was not pleased . In addition to the incorrect information about the pre-trimmed paper , the mfgr’s specs said this was printed on a non-woven substrate . It was not. It wasn’t even printed on standard wallpaper stock . Instead, it was a pulp material – This is a sort of old-fashioned wallpaper , and is very brittle and prone to tearing and dragging (your trimming knife or razor blade will get snagged and you’ll end up with a ” chewed ” jagged cut, instead of a crisp cut . It also tears easily. It also has no coating, so it’s not stain-resistant … Not good in a busy household with a 3-year old toddler , or anyone splashing water or soap or air freshener .
It was also difficult to hang . Applying wet paste to the backing causes the substrate to absorb moisture and expand at a different rate from the ink on the surface. So you end up with wrinkles , waffling , and quilting .
Sponging a light bit of water on the front before pasting helps even out the moisture differential and ease installation . I’ve never before encountered a pulp that had this type of ink on the surface. One clue for this bad stuff is when you open the package and it smells like moth balls . Once I figured out how to work with it, , it went OK – although tedious . The seams did look very nice.
BUT … all this effort would have been unnecessary and the finished room would be more durable if the mfgr had printed on a non-woven substrate (as their on-line specs stated) and had used standard inks instead of this weird , smelly , high-end stuff. In fact, the material would have cost the homeowners a whole lot less $ if it had been normal ink on a non-woven backing .
The home is in the Woodland Heights neighborhood of Houston .
installer

Sneaky Snaky Dining Room Accent Wall

August 6, 2022
Beautiful symmetry …
But look closer – those intertwining lines aren’t fronds of vegetation – they’re snakes !
The wall before. It’s a mid-century home, but the drywall here is new. Per my request, the contractor left it taped and floated , but not painted or covered with any coating .
I had planned to simply prime this wall. But after examining it more closely, the surface was a little grittier than I like. So I ended up applying a very light skim-coat and sanding it smooth .
Here the smoothed wall has been primed with Roman Pro 977 Ultra Prime .
I’m plotted out the center of the wall and am using my laser level to ensure that the design in my first strip falls right along the center, and also is nice and plumb .
My work table with two strips of wallpaper . Spoonflower packages its wallpaper differently from other companies. It comes in widths of 24″ and lengths of your choice of 3,’ 6,’ 9,’ or 12.’
Get their Pre-Pasted Removable Smooth option, which is water-activated , and is wonderful stuff.
Do NOT get the Peel & Stick , nor the Traditional Pebble . The P&S and the Traditional are both very difficult to work with, and can lead to bubbles and creases on your walls , plus cause damage when the wallpaper is stripped off later.
Back to the photo – the blue cube thing in front is my laser level , shooting its red line at the wall.
Close-up
I’m using this blue plastic tape on the edge of this strip of wallpaper. This will prevent paste from getting onto the wall or ceiling.
The accent wall stops in this left hand corner, so I need to trim off the excess. But I don’t want to get paste onto the un-papered wall. Paste can cause the wall paint to crackle and flake off.
So here you see how the blue tape is keeping paste off the wall. Once I finish trimming, I’ll check the back to make sure all of the blue tape has been removed. Any areas where the blue tape might be still on the back of the wallpaper , the paper won’t adhere to the wall .
This tape is available to paperhangers / installers . If you’re interested, shoot me an email wallpaperlady@att.net
Another thing about Spoonflower , the seams are meant to be overlapped, by 3/4″ . Note that this does create a ridge that runs vertically the length of each seam. In the grand scheme of things, this isn’t very noticeable.
Actually, there are advantages to overlapping seams in this manner. No worries about white substrates showing at the seams, nor the paper shrinking and leaving gaps at the seams.
Also, in case of unstable walls that might come apart ( delaminate ) under the tension of the drying / shrinking wallpaper, overlapping disperses the tension and helps prevent wall failure.
This pattern is called Serpents and Apples and is by Spoonflower . Spoonflower has a lot of cute designs , and also a good number of fun avant garde patterns like this one.
The homeowners have some other non-typical d├ęcor that will meld perfectly with this wallpaper. Think life-sized skeletons .
… Notice how that light fixture hanging in the center of the wall kinda looks like a skull ? …
The home is in the Oak Forest area of northwest Houston .

Special Coating Supposedly Makes Wallpaper Fire-Resistant

September 17, 2020


I’ve heard of coatings to make wallpaper water-resistant. But this is the first time I’ve seen a company claim to be able to make their wallpaper resistant to fire.

This brand is Farrow & Ball, and the material is a typical British pulp substrate.

Mysterious Spot on Wallpaper – Air Borne Substances

January 3, 2019


If you look closely, you will see tiny tan dots all over this wallpaper. This is a paper wallpaper with a very light acrylic coating, that was installed maybe 30 years ago. The installer did a very good job – although he did not remove the previous layers (2!) of wallpaper backings, and did not use a primer.

I see spots like this almost exclusively in bathrooms – where you have enclosed spaces, toiletries, and humidity.

Since these dots are most prevalent around the upper areas of the room, I think they are stains from air-borne substances. However, an alternate theory is that they could be stains leaching through from the tan backing paper that was left on the wall, or possibly from the clay-based paste that was used for the installation.

Epounding:

My theory of air-borne substances is that if you spray something into the air, such as hair spray, air freshener, deodorant, or even onto a surface, such as glass cleaner, some of the substance becomes air-borne, hangs in the air, and eventually will come to rest on the walls. This results in perfectly round little specks on the walls. (See the Page to the right, “Care and Feeding of Your New Wallpaper.”

The stains could even be coming from cooking oils that splattered into the air, got sucked through the A/C ducts, and expelled into the bathroom.

Since this paper has just a light acrylic coating and no durable protective vinyl coating, most any substance floating around in the air would be able to land on the paper and penetrate into it, leaving these spots.

Don’t get me wrong – I MUCH prefer these thin acrylic-coated papers over thick vinyls and non-wovens. You just need to take appropriate steps to protect them.

Moving on…

Another possibility is because the installer didn’t remove the previous layer(s) of manila-type paper backing left from the original wallpaper installation(s), nor did he use a primer or sealer, it’s possible that chemicals from the old tan paper backing are leaching through onto the new wallpaper.

This is why art framers recommend acid-free mats and framing techniques. The same are available for wallpaper installations – but we’re getting into some pretty high-end topics now…

Getting back to our bathroom in Tanglewood (Houston).

Another very possible cause is the clay-based paste that was used to hang the wallpaper. I have seen many, many times, a “dirty,” tan discoloration coming through from underneath the paper, which I firmly believe is coming from the tan-colored clay-based paste that many installers like to use. I have many instances validating this theory.

The only discrepancy is that stains from the paste working their way through the wallpaper would not manifest as tiny, perfectly round specks, but as more generalized, mottled areas. Unless, the composition of the wallpaper included teensy dots in the paper fibers, intended to allow for porousity. Or humidity in the room forms miniscule droplets which land on the wall and then wick the tan paste up through the wallpaper. Which sounds reasonable to me. In fact, I like this theory a lot. And I really DISlike clay-based paste.

A final idea is that the wallpaper is just old. After 30 years on the wall, materials are bound to break down, humidity will take a toll, and it will be time for a change to a fresh new look.

Bottom line: Remove old wallpaper, properly seal and prime the walls, avoid clay-based pastes and instead use a clear wallpaper adhesive.

Check back tomorrow for more!