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Invisible Man[_2_] Invisible Man[_2_] is offline
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Default wall sizing - new plaster

On 03/03/2010 11:05, Tom wrote:
Hi All,

Just wondered if anything has changed over the years - I always
understood that new plaster needs to be sized with PVA or equivalent
before painting etc., failure to do leads to peeling later on. Uneven
peeling at that, I've seen this so many times its unbelievable, there
must have been loads of inexperienced painters/builders/finishers in
the past. Trouble is the problems won't show up for years, by which
time they will have legged it.

But the current builders I'm using deny sizing is needed. Why? What
has changed? Have newer emulsions made this unnecessary?

Rgds., Tom


Most recommendations seem to be for thinned non-vinyl emulsion for first
coat straight on to dried plaster. Some sheds do it ready to apply.