Tim W wrote:
Stuart Noble
wibbled on Thursday 05 November 2009 08:42

I've never had a problem with undiluted Crown emulsion on newly
plastered ceilings. I have had trouble with Dulux though.

What sort of trouble Stuart? Did it fall off?


Yes, the roller was pulling it off as fast as it was putting it on. It
was just too thick basically, and it seems the viscosity was created by
entraining cheap (i.e. heavy) minerals. It certainly was non-drip but at
the cost of not performing well on porous surfaces.
OTOH the last lot of Crown I used was thinner and went on like a dream
straight from the can. The own brand B&Q was much the same IIRC.
The practice of thinning emulsions is not a good idea IMO, despite what
the manufacturers say, because the added water isn't truly incorporated.
Think diluting custard :-)