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I will be hanging paper in a client's kitchen. The walls are painted with eggshell paint, and have never been papered. Is priming still necessary? Has anyone hung paper on painted walls without priming first? The paper is York's "Sure Strip"."
 

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If it were me, I'd just go without priming on painted walls.
 

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A very large, technically reputable, commercial contractor I worked for hung all vinyl and any paper they did on raw sheetrock. Having hung a bit of paper myself, I once asked why they didn't prime. The boss looked at me like I was from Mars because, of course they would they would get the drywall repair in a few years when the tenant moved or remodeled. "DUH". There's money in them chunks of drywall.
 

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A very large, technically reputable, commercial contractor I worked for hung all vinyl and any paper they did on raw sheetrock. Having hung a bit of paper myself, I once asked why they didn't prime. The boss looked at me like I was from Mars because, of course they would they would get the drywall repair in a few years when the tenant moved or remodeled. "DUH". There's money in them chunks of drywall.
Been there, done that! The only problem is if your company didn't do the original job, some dumb ass estimator would come out and pull a few feet of the vinyl off with no problem and bid it like it was properly primed. You get there with a crew and the vinyl pulls half of the sheetrock off with it.
You call the shop and the dumb ass estimator says, "well I pulled a couple of feet off with no problem", then tells you just get the fricken job done!
 

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primer is not necessary over already painted walls... I would still use wall prep before putting the paper up.

I typically prefer oil primer under paper, but have used papers and adhesive that recommend water based not oil.
 

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Primer Sealer. The second word is the key when hanging paper. Eggshell may seal the wall but then again, maybe not. Paste will penetrate into flat paint and that's what causes all the problems down the road. As for hanging commercial vinyl over bare rock, strippable clay adhesive will release from the drywall once it is completely cured, but the vwc will strip and the adhesive will remain. I'm with Chris.....do it right.
 

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Yeah. I usually gardz it no matter what, but occasionally, I'll skip it. Flick a little water on the wall. If it soaks in at all, it needs to be primed. But, its better to be on the safe side and do it anyway. There might be crappy paint underneath the eggshell that the paste moisture can reactivate.

Or, you can skip the primer, and make whoever has to remove it have a crappy day, as well as keep your fingers crossed that the seams hold.

Also, paste will not stick to most oil base. Paint OR primer. I'd skip it altogether. If you use oil, you need to put a waterborne on top of it, so you might as well just use waterborne to begin with.
 

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I will be hanging paper in a client's kitchen. The walls are painted with eggshell paint, and have never been papered. Is priming still necessary? Has anyone hung paper on painted walls without priming first? The paper is York's "Sure Strip"."
Sizing the walls is proper, but your paper will stick to the eggshell no problem. Give them a light poles and first..
I would explain to the HO the option of priming or not..
 

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Been there, done that! The only problem is if your company didn't do the original job, some dumb ass estimator would come out and pull a few feet of the vinyl off with no problem and bid it like it was properly primed. You get there with a crew and the vinyl pulls half of the sheetrock off with it.
You call the shop and the dumb ass estimator says, "well I pulled a couple of feet off with no problem", then tells you just get the fricken job done!
It will pull plaster too. Not just sheetrock.
 

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Yeah. I usually gardz it no matter what, but occasionally, I'll skip it. Flick a little water on the wall. If it soaks in at all, it needs to be primed. But, its better to be on the safe side and do it anyway. There might be crappy paint underneath the eggshell that the paste moisture can reactivate.

Or, you can skip the primer, and make whoever has to remove it have a crappy day, as well as keep your fingers crossed that the seams hold.

Also, paste will not stick to most oil base. Paint OR primer. I'd skip it altogether. If you use oil, you need to put a waterborne on top of it, so you might as well just use waterborne to begin with.
Years ago we used to prime new sheetrock walls that were to receive VWC in hotels and large office towers with flat oil, some guy used to add a gallon of eggshell to each fiver of flat, claiming it gave it more slip.:surprise:
 

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Years ago we used to prime new sheetrock walls that were to receive VWC in hotels and large office towers with flat oil, some guy used to add a gallon of eggshell to each fiver of flat, claiming it gave it more slip.:surprise:
oil priming under wallcoverings used to be good, until they reformulated oils for low VOC. Now paste doesnt stick too well. Commercial clay based might though..

Although, oil primer seals the wall TOO well for commercial vinyl. The paste would stay wet for a week...

Moisture permeability is important when hanging vinyl. Vinyl will tear off in big sheets, even if the wall wasnt primed, and unprimed walls will help the paste dry. sealing the surface is good, but you dont want to seal it TOO much.


With paper, however, unprimed walls make future removal a nightmare.
 

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oil priming under wallcoverings used to be good, until they reformulated oils for low VOC. Now paste doesnt stick too well. Commercial clay based might though..

Although, oil primer seals the wall TOO well for commercial vinyl. The paste would stay wet for a week...

Moisture permeability is important when hanging vinyl. Vinyl will tear off in big sheets, even if the wall wasnt primed, and unprimed walls will help the paste dry. sealing the surface is good, but you dont want to seal it TOO much.


With paper, however, unprimed walls make future removal a nightmare.
Your point about the VOC's in today's oils is well taken, but years ago this is how it was done, even though everyone bitched about the smell.
 

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Your point about the VOC's in today's oils is well taken, but years ago this is how it was done, even though everyone bitched about the smell.
Most of my jobs are one day deals. I walk in, get a thin coat of primer on the wall, aim a fan at it, set up my table, cut the strips, eat lunch, then hang. With oil, I'd have to wait another day.

I dont see any benefit to priming with oil nowadays even if paste DID stick to it. We have plenty of good waterborne products to choose from. Between Gardz, and Sheildz, theres just no reason to use oil.
 

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Most of my jobs are one day deals. I walk in, get a thin coat of primer on the wall, aim a fan at it, set up my table, cut the strips, eat lunch, then hang. With oil, I'd have to wait another day.

I dont see any benefit to priming with oil nowadays even if paste DID stick to it. We have plenty of good waterborne products to choose from. Between Gardz, and Sheildz, theres just no reason to use oil.
Again, I'm not telling you what to use, only how we did it then! I see that you're doing mostly one day jobs, they call that blow and go around here.

Why not just skip the priming and throw the stuff on the wall, think of the extra profit?

With it, you might be able to squeeze a weekend in Vegas every month.
 
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