Posts Tagged ‘soak’

Stripping ’00’s Vinyl Wallpaper Off Of ’90’s Wallpaper Off Of Un-Primed Drywall

May 18, 2023
Considering that this previous installer broke just about all the rules of hanging wallpaper , his job looks good, seams are tight , and it’s held up for 20 years .  This is one of the typical materials we were hanging back then, a pre-pasted , paper-backed , solid-vinyl wallcovering .  Not my favorite material at all (often curling at seams , especially in bathrooms and/or when installed without proper wall prep ).  Thankfully, they’re not very prevalent today, outside of the lower-end market.  
Anyway, these are usually fairly easy to strip off the wall .  All you need is water , a putty knife , and patience .
But here’s a wrench in the works – the previous installer hung this vinyl paper over existing wallpaper .  A big no-no!  You can see the original stuff peeking out around the light switch.    
That original wallpaper was installed by the builder in the ‘90’s , and almost always you can bet it’s been hung directly on un-primed / un-sealed Sheetrock .  This can be very difficult to get off, without tearing up the surface of the drywall.  If that original paper is paper instead of vinyl ( plastic ), sometimes it’s OK to leave it on the wall , prep it correctly, and hang the new wallpaper over it.
So that was my original plan.  Strip off the vinyl and its paper backing, and then prep the bottom layer and hang new paper over it.  But, as you can see if you look closely at the edges of the bottom wallpaper, that fuzzy manilla paper backing is telling us that it, too, is a solid vinyl material.  No matter how  you might prep it, we don’t want this thick , slick , plastic stuff under our new wallpaper.
Back to the topic of stripping wallpaper .   Done properly , it’s not a horror show.  All you need is water and patience .  The theory is to reactivate the old paste with water , and it will let go and the paper will come off the wall. 
But water won’t penetrate the vinyl / plastic layer (and it won’t penetrate the thin acrylic coating on other types of wallpaper, either ).  So, the first thing you need to do  is remove that top layer. 
These solid vinyl materials are pretty cooperative.  Simply get under the vinyl with a 3” stiff putty knife and then use your hands to pull it away from its paper backing .  It usually separates and comes off in fairly large pieces.  The same process works for thinner paper wallpapers , too, but it helps a lot if you sponge the surface first with water , as this seems to strengthen the fibers somehow, and you’ll get that top layer off in larger chunks (instead of 1” bits). Sometimes works better pulling from bottom to top, or from right to left…. experiment and see what works best.
Next use a sponge and a bucket of warm water …
… to wet that paper backing .  You’ll want to go over each area several times , to be sure it’s thoroughly saturated .  The idea is to get it wet enough that it will reactivate the wallpaper paste underneath .  Be sure to cover and protect your floor and vanity countertop .
Once that paste has softened , you should be able to use your 3” stiff putty knife to gently scrape the paper backing off the underlying surface .  If you’re really lucky , it will release easily and cleanly and all you’ll have to do is pull with your hands.
Here you can see the original layer of wallpaper underneath.  Since this turned out to be another paper-backed solid vinyl material, it also had to be removed , following the same process outlined above. 
Once that top decorative vinyl layer was removed , the paper backing was left stuck to the wall.  I wetted it , let it soak until the paste was soft, and then gently scraped it off the wall.  Doing so revealed that – what did I tell you?!  – yes, the builder’s wallpaper hanger didn’t prime or seal the wall before hanging the paper.  This is usually disasterous, because  the wallpaper will often actually bond with the drywall surface and be nearly impossible to get off.  So  I was really surprised that I was able to scrape this off with absolute no damage to the drywall .  No peeling surface , no gouges , not even much paste residue (I did sponge off what I could). 
Once all that water evaporated and the Sheetrock dried , I did some minor prep touch-ups , sanded lightly , and then applied my wallpaper primer . 
  I like Roman Pro 977 Ultra Prime .

Stripping Wallpaper

February 3, 2022
Wallpaper is comprised of two layers – the top, decorative layer, and the bottom substrate layer. The first step in stripping the paper is to remove the top layer. In this case, the material is a solid vinyl. These solid vinyls usually separate easily from their backing and come off in one large strip.
The next step is to soak the backing with water. I use a bucket of warm water and a sponge. You will need to wet and re-wet the backing several times. This water will reactivate the paste. Once it’s wet enough, the paste will let go, and, if you’re lucky, the backing will pull away from the wall easily and in large pieces.
Sometimes you have to work a little harder, and use a stiff putty knife to gently scrape the paper off the wall. A good primer underneath will facilitate this process, as well as protect the wall. I hung this original paper 30+ years ago, and once it was all off, the walls were in perfect condition, and I was able to hang the new paper with no additional prep. This is the sink room.
In the tub room, the paper was the same brand, but the backing was different. This is a gritty, thicker, manilla type paper backing. This stuff usually absorbs the water nicely and lets go from the wall easily. Not so in this case. First, the top vinyl layer wouldn’t pull off, but had I had to get under it with the putty knife, and then it came off in small pieces, maybe 5″ square.
The backing also didn’t let go easily. Even when very saturated with water, it held tight, and I had to use the putty knife to gently scrape it off the wall – mostly in small chunks. Talk about eating up time!
All you need to remove wallpaper is a bucket of plain water, a sponge, and a stiff, 3″ putty knife. I know some folks are fond of their additives. But I don’t think they speed the process at all. Plus, I don’t want any residual chemicals left on the wall.
Oh, and don’t forget the dropcloths!

Dry Strippable Wallpaper

November 7, 2021
Usually when you strip wallpaper, it comes off in two pieces. The top, inked layer peels off first – leaving the backing on the wall. Then you use water to soak the backing and reactivate the paste. See my how-to page to the right. But today I got lucky, because this paper stripped off easily and without needing any water. And – bonus – no damage to the wall at all!
This paper is decades old, but I believe it is an early version of the non-woven papers becoming more and more popular today. In this photo, you can see the top, decorative layer separating from the backing. The fibers showing in that backing, and the fact that I had a hard time tearing it, lead me to believe that it has the polyester fiber content that non-woven wallpapers do. This ability to strip off the wall easily and in one piece is one of the key selling points for this non-woven material. I particularly like this very thin version, because it is pliable and hugs the wall tightly.