Martin Pentreath wrote:
Hi all,

I need to paint a rendered extension with some Dulux Weathershield.
What is the right proportion to water down the paint by for the
initial coat?

Cheers!

Martin

It's a bit like thinning custard. If you shake it enough you may get the
illusion of a uniform consistency but the two phases, water and resin,
are always separate. The water you've added soaks into the render,
together with (depending on the porosity) essential solvents from the
paint itself, making it difficult for a proper film to develop.
I prefer to use a stabilising solution and then the paint straight from
the tin