I had a paint pot that shrunk. What I did to bring it back to life is first I microwaved it to soften it up and then I sprayed it with Fix+, a couple pumps. Then I stirred it up and got some wax paper to press it back down so it looked like normal. I screwed the lid on tight and let it sit for like an hour... I'm impatient and probably should have let it be for a couple days, but I didnt
. I opened it back up and there were a couple water drops sitting on the paint and I just wiped it away. Its now back to the same consistency that it was before.