Advice and guidance sought on exterior painting at temps below 50 F
I am having new pre-primed acrylic double-hung wood on wood windows
installed in Nov. As the windows are custom, heavy, and the grass can
break easily the installers insist the exterior painting occur after
I see some acrylic paints advertised on the Internet, which can be
applied on dry days with temperatures above 35 F. I am
interested in any experience or advice on use of these or other paints
for this application.
I would never use Pre Primed, you have no idea on what crap primer was
used, on paint the issue is freezing, for the public a 20 degree temp
drop at night is normal. Latez - water base cant freeze for a few
weeks or at least a chalking wil occur next year.
I would use a factory primed window. First, a reputable manufacturer
will use reputable products--Marvin Windows was caught up in a huge
lawsuit some years ago because of finish issues, so they want to avoid
that sort of thing. Plus, the fact that it is factory applied is a
plus. Note that primer does not last forever. If the OP has to wait
till spring, he'll want to reprime.
I haven't used the low temp latex yet, but they sound like a good
thing. Never heard that you can't let latex freeze for a few weeks.
That isn't printed on any paint instructions that I have seen. Where
did you hear that? Exterior painting would end in August in my town
if that were the case. You have to use some judgement. The
manufacturers put a minimum temperature on the paint can because they
have to pick a number, but it's not gospel. It's going to depend a
lot on humidity and wind too. A forty five degree day with a nice
breeze and low humidity is going to be better than a very wet day with
higher temps. You just want to get it good and dry before the
temperature goes below freezing.
You might also consider oil paints which generally can be applied at
lower temps. Trouble with that is that you are then committed to oil
for the future repainting, but that may not matter to you.
A better place to get advice than a newsgroup is a good paint store
(NOT Home depot, Lowes, etc!). Look up your nearest Benjamin Moore
dealer in the yellow pages.
Hi, Thanks! I've already ordered the windows pre-primed, and there
is no turning back. Temps here vary from around 40+F night to 50+F
day, and predicting a full day of sun is rare and tricky to predict in
Nov. The info refers to temps both night and day. On dry times, I've
heard 3 days are recommended, though others have heard tell of good
results with only 8 hours dry times, as long as it does not freeze
during those 8 hrs.
Nearly every Sherwin Williams exterior product is good down to 35
degrees. I have used and am happy with their exterior products.
I agree with the other comments about pre-primed. The exterior primer
that I buy says that you have to topcoat within 30 days or re-prime.
Who knows how long ago they got primed.
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