will this harden

[KBS Coatings]

I aq blasted, derusted and gold coated a gas tank, worked great but during the sealer process, rolling the tank around for quit a while and it was not setting to fast, so I stoped for a short dinner and returned to roll again, mistake,, it already set up. There now is a puddel in one corner, 1/2" at the thickest part as the tank was leaning aginst the wall. Its been 7 days now(5-30 Fri) low humidity, 58 average temp, tanks fully open. Will this ever harden,, can I use it the way it is???