On 23/10/2012 17:47, polygonum wrote:
On 23/10/2012 15:49, wrote:
On Tuesday, October 23, 2012 8:11:10 AM UTC+1, stuart noble wrote:

The problems with water based have been a) retarding the drying to
allow the paint to form a uniform film and b) imparting toughness
into a film that will perform at low temperatures. I don't think
there will ever be a good gloss, but undercoat and satin seem to
work well enough.
From a user's point of view - as far as I am concerned the main
problem with water based paints has been with the water causing
raised grain on woodwork. Obviously this isn't a problem if you're
not painting wood, or there are no exposed patches of bare wood, but
I've had problems with water based primers. It's frustrating when
you've sanded everything down to a nice smooth finish and then
someone slaps water based paint on and you have to do it all again...
On the other hand looking at the cheap panelled doors made with fake
raised grain on the hardboard facings - maybe that's what the
suppliers think people want?

Completely agree that they can raise the grain. But, in that sense
luckily for me, most of my painting is re-decorating where the substrate
is already pretty well covered.


IME they only raise the grain on badly prepared timber