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SteveB

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On Tue, 07 Oct 2008 15:07:17 GMT, (Dennis) wrote:

I did something unusual for me. . . . Actually read the paint can
before priming my newly installed drywall. It says I should wait 30
days for the wall to cure. I've never done that and never had a
problem. I've always just waited for the shade of moisture to
disappear from the mud and then painted. Never have had a problem
with wear or cohesion. What am I missing?

Waiting 30 days for a "cure" is absolutely ridiculous, especially
since normal air-dry joint compound doesn't "cure" anyway. It doens't
matter though, because if anything the curing type of joint compound
can be painted over even faster - that is part of the point of it.

Anyway, I'd definitely wait a little long for the "shade of moisture"
to disappear. I'd wait until it was really dry, normally at least 24
hours depending on temp and humidity. But even if you didn't wait, it
shouldn't cause a problem since these are both water-based air-dry
components. It would still finish drying even if painted over.

Anyway, wait a day and then go for it, less than a day if in a pinch.

Most of my projects were at a leisurely pace. I liked to let stuff dry for
a long time, sometimes up to two weeks. But that was scheduling, and not
intentional. As said, you can paint a lot sooner than thirty days. I like
to leave it dry for at least a couple of days, more if I forget.

Steve