Originally Posted by GarageFloorGuy
I've been there before... I would NOT do a second thin coat the following day. Do one heavy (but not too heavy) coat.
Be sure to etch the surface prior! Good luck...
One coat or you risk an adhesion problem for a floor application. I have done two pours/coats for bar and restaurant table finishes but people are not walking or driving on them.
And be sure to double check the expiration date on the epoxy components. I cannot tell you how many people have asked me for help when they bought outdated material. Box stores are notorious for not rotating outdated stock. If it is outdated, it may never cure.