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PVA .. will it seal damp damage ?

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Mike P the 1st

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Nov 26, 2010, 1:58:50 PM11/26/10
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I have to deal with a large area 2sqm on wall papered ceiling that has
suffered from a water leak from above.

A 1/3rd of the paper has fallen off and the rest will be removed. The
plaster is badly stained but secure.

Can I use PVA as a stain blocker before I re paper considering the
large amount to cover ?


Mike P the 1st

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harry

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Nov 26, 2010, 2:11:04 PM11/26/10
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On Nov 26, 6:58 pm, Mike P the 1st

Yes. There is a special grade for this, cheaper than the wood glue
stuff. Important that you get it fully dried out first. Put on
several
coats, the first ones diluted. Its best to do the whole area
especially if painting with emulsion. The paint "takes" to the
treated/untreated areas differently.


Mike P the 1st

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Nov 26, 2010, 2:35:37 PM11/26/10
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On Fri, 26 Nov 2010 11:11:04 -0800 (PST), harry <harol...@aol.com>
gently dipped his quill in the best Quink that money could buy:

thanks Harry .. the plan is to paint the plaster with PVA and then
heavy lining paper to cover.


Mike P the 1st

Tabby

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Nov 26, 2010, 4:49:02 PM11/26/10
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On Nov 26, 7:35 pm, Mike P the 1st
<MikePthe1...@northofwherethecustardstops.com> wrote:
> On Fri, 26 Nov 2010 11:11:04 -0800 (PST), harry <haroldhr...@aol.com>

PVA coats should always be diluted, otherwise it tends to form a slick
surface thats very hard to get paint to stick to.
http://wiki.diyfaq.org.uk/index.php?title=Stain_block


NT

Mike P the 1st

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Nov 26, 2010, 5:26:20 PM11/26/10
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On Fri, 26 Nov 2010 13:49:02 -0800 (PST), Tabby <meow...@care2.com>

Nothing on that link/page.

My intention is to paint the plaster before I paper and paint.


Mike P the 1st

Tabby

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Nov 26, 2010, 5:30:12 PM11/26/10
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On Nov 26, 10:26 pm, Mike P the 1st
<MikePthe1...@northofwherethecustardstops.com> wrote:
> On Fri, 26 Nov 2010 13:49:02 -0800 (PST), Tabby <meow2...@care2.com>

works fine for me

stuart noble

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Nov 27, 2010, 3:30:15 AM11/27/10
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If you have a rust coloured water stain, it will bleed through pva. For
that you need an oil based paint IME.

geoff

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Nov 27, 2010, 3:53:34 PM11/27/10
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In message
<64ed5173-5df4-4612...@j21g2000vba.googlegroups.com>,
harry <harol...@aol.com> writes
No - use an oil based paint

I had this problem at work recently, it was the only thing that actually
worked


--
geoff

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