Anyone here have any experience/knowledge of Krylon Dura-Top %100 solids floor epoxy? It appears to be the best value I've found at $175 resin + $50 hardener for a whopping total of "5 Gallons" of product. Available through Global Industrial, Grainger and others. If not any other recommendations would be appreciated. I have 750 square ft of floor (3 car garage) to cover.