In article , says...
How long does the Flex-Coat take to dry?


It gets pretty stiff after 30 minutes or so, but it will still
feel tacky for several hours.

Useful gluing, painting, and varnishing tip: Put a dab of
your glue (or paint or varnish) on a piece of scrap, and then
when you get the urge to touch something to see if it has
dried yet, touch the scrap, so you don't leave a permanent
fingerprint on your project.

Kevin
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kevin dot vang at minotstateu dot edu