Okay, so I live in a place where it's always below 0. If I were to put my acrylic painting outside to dry, would the cold ruin the paint? Is freezing a bad way to dry a painting? I'm also thinking about using spray paint with the piece - anyone have personal experiences they'd like to share?Cold versus acrylics... and spray paint?
You definitely shouldn't let your wet paintings freeze. Acrylic is a water-based emulsion vehicle, and emulsions don't usually do well when frozen. (Freeze an egg sometime and observe its condition when it thaws.) If you've ever bought a jar of acrylic paint that has a clotted, cheese-like appearance, it has probably been left on a truck in sub-freezing conditions and been ruined as a result.
At room temperature, acrylic paint takes a few days to finish maturing after it is touch-dry. Below zero cold air is very dry, so the water will leave the paint by sublimation, but the paint film will not have the opportunity to contract and achieve a good degree of integrity. I would encourage you to keep your paintings indoors where they can stay nice and toasty while the paint does its thing.
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