Posts Tagged ‘screen print’

“Priming” Wall With Paste to Keep Seams Down Tight

August 3, 2021
Hard to see, but the slightly darker, shiny section of wall to the left of the wallpaper is a bit of paste that I have rolled onto the wall along where a seam will lie.
The paste has pulled the edges of the paper nice and tight to the wall. Never mind the slight pattern mis-match … this is a hand screen print, and it’s pretty common for these to be slightly off in printing and/or trimming. The pattern matched better above the door, then drifted off as the paper neared the bottom of the strip. You can also see that some of the edges are somewhat jagged and saw-dusty, due to trimming at the factory.

Some manufacturers use inks that fight with their substrates. The substrate absorbs moisture from the paste and expands, but the inked layer does not, so you end up with the bottom layer stretching and forcing the top layer to curl back, resulting in edges that curl and don’t stay tight to the wall.

Any time you smell ink that calls to mind mothballs, you can expect to deal with this issue. It’s pretty common with screen printed wallpapers.

One trick is to lightly sponge the surface with water before pasting the back. Another, which I have discussed here previously, is to paste the paper, fold and book it, and then dip the rolled-up edges into 1/4″ of clean water. Then place the rolled up strip into a plastic trash bag for the booking period. This helps to keep the edges from drying out while the paper books.

On many papers, I’ve found that it also helps to roll a light coat of paste onto the wall, just under where the seams will fall. This works amazingly well to grab the edges and hold them tightly against the wall.

Classic Chinoiserie Toile in Powder Room

October 30, 2020

The homeowner chose the rough marble tile backsplash wall in hopes that it would enliven the room. But with the other walls painted a bland taupe, the effect fell flat. She chose this classic 2-tone “Pillement Toile” by Scalamandre to add softness to the room and to bring out the tile wall. Mission accomplished!

This was not the easiest wallpaper to hang. For starters, like many higher-end papers, it comes with a selvage edge that had to be trimmed off by hand. (5th photo)

Also, as with many hand-screened prints that are made with “stinky inks” – the ink smells like mothballs – the ink, substrate, and moisture from the paste all fight each other, resulting in what we call curl. (4th photo) There was also some warping and stretching. It took quite a bit of time and effort to finesse that strip in the fourth photo to lie flat and tight to the wall.

Once the paper started to dry, the seams laid down tighter to the wall.

If you’re curious, that blue plastic tape in the fourth photo is placed on the edge of the wallpaper to prevent paste from getting onto the marble tile wall. Once the wallpaper is trimmed along that edge, the tape is removed. VoilĂ ! No need to wipe paste off the stone!

The home is off Braeswood in Houston.