I know the recommend window to put down a single stage over epoxy without sanding is seven days. The outside temperature is already pretty cool where I live and I had to turn the heat on in my garage to insure the temp stayed above 65 degrees while my epoxy cured. I'm wondering if the cool temps allow an extension of the seven day window before applying a single stage without sanding - like eleven days? I'd just like to shoot the engine bay, door jambs, underside of hood and trunk. Those areas that would be difficult to sand.