Hello, yesterday at 15/16° outside I had painted with the can (2k acrylic Unilack) headlights. I was finished around 5 pm. With the fingers the varnish was smooth and hardened around 7:30 pm. I thought anyway. Over night or evening it must have rained. And today it is totally flaky and rough… Should I just go over there with the green grinding polish of 3m? Or better wait another week? Or rather with 3000 sandpaper? Do I also have 2000s and 1000s paper Here. Ask for advice A photo: