I usually touch a masked area looking for slight tackiness at a minimum. Waiting until it’s just dry to the touch is even better.
Usually the can will give you the recoat time, but as you found out, it’s temperature dependent.
Phil Moderator, The Engine Shop, Interiors and Project Journals
1952 Chevrolet 3100, Three on the Tree, 4:11 torque tube Updated to: ‘59 235 w/hydraulic lifters, 12v w/alternator, HEI, PCV and Power front Disc Brakes Project Journals Stovebolt Gallery Forum