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What's the difference between acrylics and other paints? |
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 Acrylic paints are water-resistant when dry although they should be varnished to protect them, can be framed without glass. You can paint on virtually any surface as long as it's properly prepared. You can paint any style from thin watery layers to thick globules. Acrylics should be allowed one to two weeks to properly cure before applying a coat of thick paint or varnish.
When used correctly, acrylics will not crack. However they will crack when flexed when paint is frozen or cold, when painting over slick or oily surfaces, when using a cheap canvas or when painting or varnishing over an area that is not properly cured. Acrylics should be given 1 to 2 weeks to cure before applying thick paint or varnish on top.
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