On Jul 24, 4:42*pm, (fatheyzeus)
wrote:
Hi there,

The company I paint for does a lot of heritage restoration and currently
is exclusively using alkyd paint for our products. *However, we'd like to
start using more latex for drying time, environmental and health reasons
etc.. The problem is that with the oil-based DAP window putty we use; I've
read it's ok to paint latex over it after waiting for it to dry, but I
don't think our customers really want to wait that long (and many don't
want to do it themselves or have to pay a painter when it does set up). *I
wanted to try/suggest doing the entire sash/storm in latex with latex
primer and finish, bed the glass and ONLY paint the putty with an alkyd
colour match. *

My question is: how important is it that paint overlap where the putty
meets the wood? Will water penetrate that seal and damage the putty
faster? *

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Have you reviewed the Secretary's Standards to see if it's allowed.
That would be the first thing to do.

Secondly, would you be able to the the shine the same for the
different paint types. The colors might match but will the finish
match? I think you'll only know by trying it once on scrap to find
out.