As I've said earlier, this is a 500 SqFt floor. We got 1/2 of epoxy done, & 1/2 set up in bucket. The 1/2 of floor we did origianally, set up fine. but there were some spot's I wanted to do better. We sanded, d-alcohol wiped. Mixed 1.5 G PT-1 kit with reflector, put out over already done section. Seemed to go fine. Mixed 3 gal kit & devided into 3 colors of reflector. Poured out & as we worked Epoxy, separated as water would on an oil based floor. We worked it a magic trowel for 2 hrs after until it seemed to be gelling together.Blew out some air bubbles with propane torch. Bottom line: none of it set up. We had dehumidifier going. We did this last Tuesday. I went Saturday & rolled the whole floor. Homeowner said she's call if it set up. No call. Now, I have to scrap all this %#!$ off. I could see the new half not curing, but the part that was already done, & gone over? Does anyone have an answer? Could there be a problem with the epoxy? We did everything by specs.