Paint peeled off like wallpaper.

swampette · 06-21-2009, 05:55 PM

Pleeeeease Help me.
Hi,I am new to the site and in desperate need of help so please go easy on me

We had our bathroom ceiling re-plastered and put a coat of pva(5 parts water to 1 part pva) on then waited for it to dry and painted but a year later it has peeled of like wallpaper.
I have stripped it right back and am ready to go again BUT, Now i have put the pva on i am seeing a lot on the internet saying NOOOOOOO dont use pva.

Yes my eyes are popping out of my head,i have already applied it. Do i take it off?If so how??
I have left it to dry for a day and a half and am wanting to paint in the morning.
If anybody can give me there advice i would so appreciate it.
Thanks.
Mel.

Faron79 · 06-22-2009, 01:27 AM

When you say it was "replastered", do you mean they used actual PLASTER...OR was it normal Joint-cement/drywall-mud??

IF it was actual plaster, usually it needs to cure-out a MONTH or more b4 any primer goes on.
I wouldn't use a PVA-style primer over plaster...especially as thinned-out as you did...

!

Now...did you re-apply the thinned-out PVA

??!!
If so, buy an "Enamel-Undercoater" primer, like ACE's Enamel-Undercoater, Zinsser 123, or C2-One (my fave!),....and DON'T thin it at all!

Also...is there a good/operating bath-fan in there? If not, get one...and USE IT!

NOW you're ready to paint

!!

Faron

swampette · 06-22-2009, 02:23 AM

Yay...so pleased to be a new comer and have such a quick response THANKYOU

Yes it was new plaster and i have stripped it back BUT put pva back on

Oooops.
Can i wash off the pva and go for a mist coat of matt emulsion like so many others seem to say on the net??????
Thankyou for taking me on board.
Mel.

ccarlisle · 06-22-2009, 07:16 AM

What "pva" are you talking about? are you talking about a primer, diluted, a resin, a glue or what? and where did you get this information about diluting "pva"? like why 5:1?

Just interested, really...

And by the way, where are you?

Matthewt1970 · 06-22-2009, 06:17 PM

Quote:

Originally Posted by swampette

Pleeeeease Help me.
We had our bathroom ceiling re-plastered and put a coat of pva(5 parts water to 1 part pva) Mel.

Well there's your problem. Never thin Latex unless you are going to spray and even then it is like 4 or 5 parts latex to one part water. Latex thinned down 5 to 1 has no chance of sticking worth a hoot.

chrisn · 06-22-2009, 07:05 PM

Latex thinned down 5 to 1 has no chance of sticking worth a hoot.

ccarlisle · 06-23-2009, 07:15 AM

Yup...but that's why I asked the question of their location because I think they're in the UK so the products they have over there may not be what we normally see. I think they mean that PVA is something like our Elmers woodworking glue, ie a straight PVA resin emulsion that could be used as a plaster primer... we'll wait and see if they naswer or not...

06-21-2009, 05:55 PM	#1
swampette Newbie Join Date: Jun 2009 Posts: 2	Paint peeled off like wallpaper. Pleeeeease Help me. Hi,I am new to the site and in desperate need of help so please go easy on me We had our bathroom ceiling re-plastered and put a coat of pva(5 parts water to 1 part pva) on then waited for it to dry and painted but a year later it has peeled of like wallpaper. I have stripped it right back and am ready to go again BUT, Now i have put the pva on i am seeing a lot on the internet saying NOOOOOOO dont use pva. Yes my eyes are popping out of my head,i have already applied it. Do i take it off?If so how?? I have left it to dry for a day and a half and am wanting to paint in the morning. If anybody can give me there advice i would so appreciate it. Thanks. Mel.

06-22-2009, 01:27 AM	#2
Faron79 Member Join Date: Jul 2008 Location: Fargo, ND Posts: 295	Paint peeled off like wallpaper. When you say it was "replastered", do you mean they used actual PLASTER...OR was it normal Joint-cement/drywall-mud?? IF it was actual plaster, usually it needs to cure-out a MONTH or more b4 any primer goes on. I wouldn't use a PVA-style primer over plaster...especially as thinned-out as you did...! Now...did you re-apply the thinned-out PVA ??!! If so, buy an "Enamel-Undercoater" primer, like ACE's Enamel-Undercoater, Zinsser 123, or C2-One (my fave!),....and DON'T thin it at all! Also...is there a good/operating bath-fan in there? If not, get one...and USE IT! NOW you're ready to paint !! Faron

06-22-2009, 02:23 AM	#3
swampette Newbie Join Date: Jun 2009 Posts: 2	Paint peeled off like wallpaper. Yay...so pleased to be a new comer and have such a quick response THANKYOU Yes it was new plaster and i have stripped it back BUT put pva back on Oooops. Can i wash off the pva and go for a mist coat of matt emulsion like so many others seem to say on the net?????? Thankyou for taking me on board. Mel.

06-22-2009, 07:16 AM	#4
ccarlisle Member Join Date: Jul 2008 Location: Montreal, Quebec, Canada Posts: 1,791	Paint peeled off like wallpaper. What "pva" are you talking about? are you talking about a primer, diluted, a resin, a glue or what? and where did you get this information about diluting "pva"? like why 5:1? Just interested, really... And by the way, where are you? Last edited by ccarlisle; 06-22-2009 at 07:19 AM.

06-22-2009, 07:05 PM	#6
chrisn paper hanger and painter Join Date: Dec 2007 Location: Hagerstown MD Posts: 5,851	Paint peeled off like wallpaper. Latex thinned down 5 to 1 has no chance of sticking worth a hoot.

Paint peeled off like wallpaper.