Hi,
Began doing a room redecoration project not too long ago, just doing a few bits every day and slowly making my way through it.
It's an old house with lath and plaster walls, so the walls aren't in the best condition. I've opted to replace the old paper with newer paintable paper (so it can hide the bumps, etc.).
What I've done so far is peel the vinyl top layer of the old paper off, then wet the backing paper and peel that off. From there, the lining paper that's stuck to the actual plaster walls looks very sound, so I've opted to keep that on and just re-paste down any loose areas with the wallrock readymixed adhesive, as it seemed to be highly regarded for its strength.
After that, I opted to seal the lining paper with Zinsser Gardz (needed more than one coat tho as not all areas of the paper were equally absorbent, so getting it nice and shiny took some do-overs). After the first coat I also very gently took a fine grit damp sanding sponge to the surface of the paper and gave a couple of quick passes, which removed all the rough bits of what I presume was old wallpaper adhesive. This got everything nice and smooth.
First question: Was this the correct method, sealing the sound lining paper to the wall with Gardz, with the intention of papering over the top of that shiny finish? (will be using the wallrock adhesive again). Most people who Gardz over old paste do it with the intention of painting over it, I'm just looking to paper over it again, so sealed and 'sized' the lining paper, treating it as a bare wall. I'm just hoping that the shiny surface finish of Gardz doesn't prove problematic for wallpaper adhesion, no issues with seams coming off, etc? I have bad experience with poorly painted satin paint causing wallpaper around skirting edges to come loose, so I am a bit paranoid there!
Second question is, when I come to do the ceiling. It was previously painted in a shiny satin finish, and I want to go over it with a matte paint, but am worried about crazing. I can't sand it to key because it's a textured paper that was painted, so I need another solution. I have heard you can just apply Gardz to that as well, and it will be good for coats of paint after.
Others say that Gardz is not the correct primer for this job, and Zinsser 123 is what I want. What's the recommendation here?
Cheers.
Began doing a room redecoration project not too long ago, just doing a few bits every day and slowly making my way through it.
It's an old house with lath and plaster walls, so the walls aren't in the best condition. I've opted to replace the old paper with newer paintable paper (so it can hide the bumps, etc.).
What I've done so far is peel the vinyl top layer of the old paper off, then wet the backing paper and peel that off. From there, the lining paper that's stuck to the actual plaster walls looks very sound, so I've opted to keep that on and just re-paste down any loose areas with the wallrock readymixed adhesive, as it seemed to be highly regarded for its strength.
After that, I opted to seal the lining paper with Zinsser Gardz (needed more than one coat tho as not all areas of the paper were equally absorbent, so getting it nice and shiny took some do-overs). After the first coat I also very gently took a fine grit damp sanding sponge to the surface of the paper and gave a couple of quick passes, which removed all the rough bits of what I presume was old wallpaper adhesive. This got everything nice and smooth.
First question: Was this the correct method, sealing the sound lining paper to the wall with Gardz, with the intention of papering over the top of that shiny finish? (will be using the wallrock adhesive again). Most people who Gardz over old paste do it with the intention of painting over it, I'm just looking to paper over it again, so sealed and 'sized' the lining paper, treating it as a bare wall. I'm just hoping that the shiny surface finish of Gardz doesn't prove problematic for wallpaper adhesion, no issues with seams coming off, etc? I have bad experience with poorly painted satin paint causing wallpaper around skirting edges to come loose, so I am a bit paranoid there!
Second question is, when I come to do the ceiling. It was previously painted in a shiny satin finish, and I want to go over it with a matte paint, but am worried about crazing. I can't sand it to key because it's a textured paper that was painted, so I need another solution. I have heard you can just apply Gardz to that as well, and it will be good for coats of paint after.
Others say that Gardz is not the correct primer for this job, and Zinsser 123 is what I want. What's the recommendation here?
Cheers.
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