Posts Tagged ‘liner’

Chinese Hand-Painted Silk Mural

June 27, 2019


Here is some delicious stuff! This is silk wallpaper, hand painted in China with these beautiful bird, butterfly, and botanical motifs. Look at the close-up shots to see the gorgeous paint detail.

There are some historic companies who make these murals, like Zuber, Gracie, Fromental, and de Gournay, and they can run $500-$1200 per panel. (This wall took seven panels.) But my client found another manufacturer who was way more reasonable. http://www.worldsilkroad.com/

The mural was custom-sized to the homeowners’ wall. The studio added 2″ to the top and bottom, and a little more to each side, for trimming, and to accommodate walls that are not perfectly plumb and ceilings that are not perfectly level. (Never order a mural to the exact dimensions of the wall, and always best to have the paperhanger measure before ordering.)

There are a lot of things that make an install like this much more complicated than a traditional wallpaper. For starters, the silk can easily be stained by just about anything … wallpaper paste, water, hands. So it’s important to work absolutely clean. You will NOT be able to wipe off any errant bit of paste. The paper also had a half inch “bleed” of excess paper along the edges that had to be trimmed off by hand (no photo).

The material was thicker than expected, wanted to stay curled up as it had been in its shipping tube, and the backing was very absorbent, which meant that it sucked up paste and was almost dry by the time it was finished booking and got to the wall… So it required extra paste on the edges to get them to stick tight, while, once again, taking care to not get any paste on the surface of the paper.

The company provided precious little information. Well, actually there was information, but it came in Chinesnglish, and, bless their hearts, was virtually indecipherable. The company was very responsive, but, unfortunately, was unable to provide adequate information about paste recommendations, booking time, was a liner spec’ed, if the substrate was paper or non-woven, if the silk had a protective coating, and even whether or not the goods had to be hand-trimmed or came pre-trimmed. There was a lot of other mysterious content on their instruction sheet that ended up best being disregarded.

So I used common sense and traditional installation methods, and it turned out great.

In one photo, I am rolling out the panels, to be sure they are in the correct sequence. Even though the manufacturer had told me the panels were pre-trimmed and ready to butt on the wall, while rolling them out, I discovered that if I did that, the pattern match would be off. This is when I discovered that 1/2″ had to be trimmed off one side of every strip.

This also meant that each strip would be 36″ wide, rather than 36.5″, so my measurements and layout calculations had to be revised. This was particularly important because that first area to the left of the window was barely more than 36″ wide – and I didn’t want to end up having to piece in a 3/8″ wide strip of this delicate material.

Two other pictures show some crinkles in the material. I believe these happened at the factory or during shipping, because the same defects appear in two consecutive panels, at the same position. They were both up high, and, once the material got wet with paste, expanded a little, and then applied to the wall, these flaws were not detectable.

The last photo shows what you should expect from hand-painted products. They probably had one guy working on Panel 6, and another working on Panel 7, and each probably had a different size paint brush, and possibly their stencil (or whatever they use) was a bit off. Either way, this mis-match is not considered a defect, and is part of the beauty of a hand-crafted mural. There were really only two areas that matched this poorly, and they were both low toward the floor. In the upper areas where branches crossed the seams, the pattern matched very nicely. Really, it’s quite incredible that their precision can be as good as it is.

I’ve never worked with this brand before, but overall, I was pleased with the quality and the installation. You can find the manufacturer by Googling World Silk Road. It comes from England, but is made in China. (Gee…. why can’t they have one of those British guys translate the installation instructions?!)

This mural went on one accent wall in a master bedroom of a home in Idylwood, a small, idyllic, and very desirable neighborhood of 1930’s and 1940’s homes on Houston’s east side. The homeowners love vintage as much as I do, and are keeping most of their home true to its original state.

Advertisements

Trouble Brewing? Paint Not Adhering to Wall

June 26, 2019


Top photo: A small circle of paint had been pulled away from the wall. When I picked at it, I was able to easily detach more paint.

Second photo: When I removed the light switch plate, some paint had stuck to it, and pulling the switch plate off the wall took some of the paint underneath along with it.

The exposed wall underneath the paint was gritty and dusty. I could not tell if it was a layer of old paint, drywall, dust, residue from ancient wallpaper paste, or other. I had the feeling that if I had tried, I could have peeled all the paint off the dusty subsurface.

This is not good.

This is an old house, and many layers of paint and other treatments have been added to the walls over the decades (100 years!). Many of these substances are not compatible with each other, and especially not if the walls were not prepped properly before applying another coat of paint.

Latex paint won’t stick to oil based paint. New paint won’t stick to a glossy paint. Nothing sticks to a dusty surface.

All these various materials will adhere to one another – for a while. But when a stressor is added to the formula, there is the potential for the layers to delaminate (come apart). That’s what happened in the two areas above, when a bit of a tug was all it took to peel several layers of paint away from the wall.

The issue here is that wallpaper comes with its own stressors. Wallpaper gets wet when it’s pasted, expands a bit, and then when the paste dries, the paper shrinks a tad and puts tension on the walls. Over time, with changes in temperature and humidity, foundations shifting, and just plain old passage of time, this tension could cause the paint to give way from the walls – this usually manifests at along a seam.

I use a wallpaper-specific primer, and among its attributes is the ability to withstand this type of tension.

Let’s hope that over the years, the many layers of paint, the new coat of primer, and the wallpaper all work together to stay nice and tight to the wall.

Note: If I had known about the wall condition earlier, and if the homeowners’ budget had allowed, a liner would have been a good option in this case. A liner is a special type of paper that is applied to the primed wall the day before the paper goes up. It serves several purposes, but one is to distribute tension across the wall. Because the seams of the liner do not line up with the seams of the wallpaper, drying and shrinking wallpaper puts tension on the liner, and not onto the unstable wall itself, thus pretty well eliminating the chance that the wallpaper seams could cause the wall to delaminate.

The downside is that using a liner adds an extra day (or more) of labor, plus the cost of material.

Stroheim Playful Geometric – A Tough Hang Today

March 24, 2019


This colorful and playful geometric pattern went in an elevated “nook” in an open play area in a new home in the Oak Forest neighborhood of Houston. It wakes up an otherwise all-white house, and coordinates perfectly with bright artwork in the room.

The paper is by Stroheim, and was somewhat difficult to work with, especially in a room that presented the challenges it did – wide window, and four cubbyholes around three fixed built-in shelves.

First, the paper had a selvedge edge that had to be trimmed off by hand, a straight edge, and a razor blade. This is tedious and took about an hour to trim eight single rolls.

Second, any time you have wallpaper whose ink smells like mothballs, you know you are in for a tough day. The ink absorbs moisture from the paste at a slower rate than the substrate, so the paper backing puckers (called waffling or quilting). This doesn’t go away, even after booking and sitting in a closed plastic bag for several minutes – so you end up with wrinkles and blisters on the wall.

One thing that helps with this is lightly wetting the surface of the paper with a damp sponge. This allows the ink to absorb moisture, and relax at the same time the paper backing is expanding and relaxing.

You will also notice in the photo that the edges of the paper are curling toward the front. This is, again, the result of uneven absorption of moisture from the paste. Unfortunately, this continues once the paper is on the wall. I had to keep going over the seams to make sure they were down and that edges were not coming away from the wall. No matter how much paste I put under the seams, or how tacky I let the paste get, it didn’t seem to want to grab those edges.

Once the paper is good and dry, though, usually the seams lie down nice and flat, and any blisters or wrinkles will disappear.

Clay-based paste has less moisture content, and could possibly help reduce the waffling. I hate clay paste, though, because it’s hard to wipe off woodwork and off the surface of the wallpaper, and because it works its way through the paper and casts a tan tinge on the paper.

One thing that will help with issues like these is a liner paper. A liner is a plain paper of a special material that is applied to the wall before the decorative wallpaper goes up. It’s job is to absorb moisture from the paste, which causes the paper to dry more quickly, and to “lock down” the seams quickly. So a liner has its place, but it does add an extra day of labor, plus the cost of the liner material.

Interestingly, the Stroheim instructions did not spec a liner; only a good quality wallpaper primer (which I did use). They also did not spec clay-based paste, but recommended three different types of clear pastes (vinyl, wheat, or cellulose), each of which is distinctly different and contains different moisture contents. I would think wheat or cellulose to be too thin and weak to adequately adhere this particular material.

I’ve hung plenty of their products and had no problems with waffling or curling seams; it’s clear that the company has a blanket set of instructions that they stuff into every roll, with no regard to the substrate it’s printed on or the type of ink that was used.

The other thing is, most of the time, you don’t know what you’re going to be working with until you show up at the job site. Even if you research the brand and pattern number ahead of time, there will likely be no mention of the type of substrate or the “mothball” smelling ink. If I had known, I would probably have suggested that this homeowner use a liner. Beyond that, it’s good to have your truck stocked with a variety of primers and adhesives.

Back to the difficult room … I always say that a window like that is easy for you to look at, but very difficult for me to get paper around, at least while keeping the pattern straight and properly lined up. That’s because papers stretch and twist when they get wet with paste, and can contort out of whack. And the wider the obstacle you are working around, the more the paper can go off-kilter. So you can start perfectly lined up on the left of the window, but by the time you get to the right side, the strip coming down from the top of the wall may not line up with the pattern coming across horizontally below, and the two edges may not butt up perfectly, either.

It didn’t help that the pattern had an irregular hand-drawn look, so I couldn’t use a ruler to make sure every horizontal line was equidistant from the window molding. So that window wall took about two hours in itself.

Then there was the wall on the right, with the four cubbyholes in between the three shelves. I had to get two strips of paper on the backs of each of those cubbies, keep the seams from curling, and keep the pattern straight, continuing to four more strips on the wall to the right (the inside side of the wall you see on the right of the photo next to the door molding), so that all four of those strips would line up with one long piece coming down from the ceiling. Oh, and did I mention the extremely unlevel ceiling? This wall in itself took about three hours.

Actually, the irregular hand-drawn look of the pattern helped immensely, because the pattern didn’t have to line up exactly perfectly. Also, the way it was printed on the paper, the design motifs didn’t cross a seam, so that allowed me to raise or lower a strip slightly, to keep the pattern where I wanted it, without disrupting the look of the design. In fact, it was possible to not follow the correct pattern match, and the eye really couldn’t detect it. I could also cut strips vertically to narrower widths, to suit the area I was working in.

There were a few other tricks I pulled out of my hat, in lining up the design after coming around the window and shelf walls, to plumb up the pattern after turning a corner, and to disguise the very unlevel ceiling. The kill point (last strip meets up with first strip) turned out amazingly undetectable, with very little tweaking from me.

In the end, the nook turned out fantastic, and is ready to host children’s performances, reading marathons, or just gazing out the window.

The interior designer for this job is Stacie Cokinos, of Cokinos Design. She works mostly on new builds and on whole-house remodels, and is a great resource for finding and coordinating all the details – tile, plumbing and light fixtures, rugs, furniture, lamps, accessories, paint colors, and, of course – wallpaper. 🙂

Before There Can Be Paper, There Shall Be Liner

March 13, 2019


Usually, a smooth wall coated with a good quality wallpaper-specific primer is the best surface on which to hang wallpaper.

But with certain papers, particularly high-end or delicate materials, or in certain room conditions (humidity), a liner paper is called for.

A liner is a thin paper, made of either non-woven or pulp, often called “blank stock,” which is hung on the wall before the decorative wallpaper goes up. It has a couple of jobs…

– provide a smooth “velvety” look
– “lock” the seams down quickly and tightly
– help tame papers that want to “waffle” or “quilt” – do a Search here to learn more
– wick moisture from the paste away from the paper, helping to reduce the chance of staining or blushing – do a Search here to learn more
– absorb moisture in humid areas (bathrooms) and help prevent seams from curling

There are “bridging liners” which are supposed to cover cracks, gaps, bumps, ridges, and the like. In my experience, they do NOT live up to their hype. Once the paste dries, they pull tightly against the wall, and any bumps or grooves will still show. If the wall has imperfections, the best solution is to skim-float the wall and sand smooth.

Hanging on liner paper is different from hanging on a primed wall. The liner grabs the paper so quickly that you don’t have the opportunity to manipulate seams or fine-tune areas that need special attention. And you won’t be able to reposition a strip even five minutes later. It does help reduce bubbles or wrinkles.

A liner will increase the cost of the job, usually by more than double. There is the cost of the material itself, as well as the labor to install it. The liner has to dry overnight, so you are looking at at least one day’s additional labor, plus the cost of the liner.

Please AVOID Paper-Backed, Solid Vinyl Wallcoverings!

August 2, 2014

Digital Image

Digital ImageThis curling at the seams, which is not repasteable or repairable (at least not if you want it to look right) is not uncommon when economically-priced paper-backed solid vinyl wallpaper has been used, particularly in humid rooms like bathrooms.

My theory is that the science is that moisture from humid air (teenagers taking 45-minute steamy showers!),works its way into the seams of the wallpaper, and is absorbed by the porous, gritty paper backing typically used on these types of wallpapers. The paper expands, and that causes the material to curl at the seams. These “curls” are usually hard and stiff, and really don’t respond to attempts to get them to reattach to the wall.

A liner under the wallcovering would probably benefit, because liners help to absorb moisture, while they also “lock down” the seams. However, liners add additional cost for merchandise and labor, and add at least a day to the job.

Much better, in my opinion, to steer away from “solid vinyl” materials, and buy “paper” or “vinyl-coated” or even the new “non-woven” wallcoverings.

My wallpaper seller gal can help guide you (see link at right, “Where to Buy Wallpaper in Houston.”