Painting over water stain

[Graham]

I am about to redecorate a bedroom that earlier in the year had it's ceiling
stained by a slow leak in the loft (which was quickly rectified). The
ceiling is paint on lining paper. The paper is still sound but I imagine if
I try to paint directly over the stain with emulsion it will show through as
it is a brown colour.

What would people suggest as an "undercoat" upon which I could simply
emulsion?

TIA

Graham

[Tom Burton]

just normal solvent/oil based u-coat.

You could use the stain/damp paint but at £4 per 250ml tin its a bit exp!
and added to that if you just emulsion over it it'll boot out the pigments
in the paint.

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"Graham" <graha...@bigfoot.com> wrote in message
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[Graham]

Tom,

Can you recommend such an undercoat - and you believe it will then keep the
stain away from the new decor?

Will I be OK putting emulsion (water-based) on top of a solvent based
undercoat?

Thanks

Graham

"Tom Burton" <ic3142...@talk21.com> wrote in message
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[TonyK]

Graham

I've always used the "real" StainBlock stuff and never had any probs. but a
lot of people in various groups have recommended any oil-based paint. I
recently used some white satin finish oil-based paint over a patch on a wall
and emulsioned over it without any problems.

HTH

Tony

"Graham" <graha...@bigfoot.com> wrote in message

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[Tom Burton]

"Graham" <graha...@bigfoot.com> wrote in message

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> Tom,
>
> Can you recommend such an undercoat - and you believe it will then keep
the
> stain away from the new decor?

Any oil based undercoat, the stuff you'd use under liquid gloss, just stcik
tot he cheepest.

for a decent product ive used id recommend johnstones NOP
http://www.johnstonesnop.co.uk

> Will I be OK putting emulsion (water-based) on top of a solvent based
> undercoat?

yea its fine because of the very open texture, i was warey until i saw a
decorator of 30yrs doing it in a pub to block nicotine stains

[Graham]

OK, so it sounds like either a gloss undercoat or a satin type paint would
do the trick - the trouble I have is working out whether they are oil-based
... am I corrcet in thinking that if I can wash the brushes in water it must
be water based and therefore I need a tin that says to use spirits?

Cheers and thanks for all the advice,

Graham

"TonyK" <Z...@Z.Com> wrote in message
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[Tom Burton]

> OK, so it sounds like either a gloss undercoat or a satin type paint would
> do the trick

YUP

- the trouble I have is working out whether they are oil-based

> ... am I correct in thinking that if I can wash the brushes in water it

must
> be water based and therefore I need a tin that says to use spirits?

Not really. you can now buy emulsifyed oil paints that you can wash in
water.

Look for anything that does NOT say Quick Drying or Acrylic

>
> Cheers and thanks for all the advice,
>
> Graham

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"Graham" <graha...@bigfoot.com> wrote in message

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