Drying and curing are completely different - paint or primer can feel
dry in a couple of hours, but take much longer to reach the final, fully
cured state. Read here:
Years ago a painter told me about the best primer to use on new walls.
Muralo is very thin and it is quickly absorbed into the wall board sealing
it up. I always use Benjamin Moore on top of that with great results. I
used Behr once so I understand why you put on a thick second coat.
As others have stated, you obviously had too much moisture in the room as a
result of it being in the basement and from the moisture from the paint
trying to evaporate. The cold air caused condensation.
Masking tape should be removed promptly after applying paint. In your case
the paint under the tape was not completely dry. It can take several days
for paint to cure completely even though it is dry to the touch. Run your
fingernail into the paint and see if it makes a dent. If it does the paint
is still soft underneath.
At this point I think that you should let everything dry out for a week or
more. Look at the temperature limitations on the paint can and make sure
that the room stays above that. Repaint next week and put a small fan in
the room. Keep the windows shut if it cold outside. Buy a respirator so you
can work with the smell.
rather than paint with oil (yuck!) I'd scrape down the wall and then
reprime with Zinsser Bulls-Eye 123 latex primer. It will cover any
clean surface without sanding. You can even prime glass with this
stuff. Then repaint with latex. If you live in the Midwest, you can
pick it up at Menard's, if not I am sure you can find it at Home Depot
or Lowe's or Google it and find a local supplier. -It probably was the
dust. You definately can paint latex over an oil based primer. just
not over oil based paint. try keeping the windows closed and opening
any heat vents that may be down there. cook that paint a little and it
will give you a nice finish! 45 degrees is a bit cool for interior
paint. It was probably the mix of cold outside and warm inside that
caused the sweating. keeping the windows closed will prevent that.
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