I've used Zinsser BIN to paint beams and ceilings. Goes straight into the spraygun and goes on lovely. It's not great on a brush, but it's not for that.
Have used the BIN on water stained ceilings before and was brilliant. All the stains didn't come through and was a one hit.
@lynx started
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I've used Zinsser BIN to paint beams and ceilings. Goes straight into the spraygun and goes on lovely. It's not great on a brush, but it's not for that.