On 23/06/2007 19:57 Dave Liquorice wrote:

Why would a glue stop a stain? You need something that isn't water based.

Because PVA forms a 'skin'?

You can get proprietary stain blockers
but they are expensive compared to the left over can of white gloss on
shelf...

The white gloss sounds good so long as it won't alter the texture of the
silk emulsion used to overpaint it...

--
Frank
(Beware of spam trap - remove the negative)