Originally Posted by Deerwhacker444
You can buy waste paint hardener, but I'm now sure how economically feasible that is if you're talking lots and lots of cans.
That sounds like a solution looking for a problem. It might speed up drying but I doubt the final product is any different than just leaving the lid off.

If you want to speed up drying, line a big cardboard box with plastic and dump it in. The more surface area, the faster it dries.


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