Floetrol is for water based paints only, I use it extensively when using the Graco sprayer for house painting. I would not recommend it for use with epoxy. I used V170 to thin for spraying, but the same thinner can be used to improve the flow out if rolling. When I rolled and tipped, it came out as a thicker film and required a longer time between coats. Between re coat and induction times, it is a rather long process. Not saying rolling/tipping is a bad process, its actually very good, especially if you have help mixing and can keep the process moving. The wet edge is the key, which is not bad when doing a side, but there will be an overlap in the center that wont flow out. In a nutshell, I can spray the whole hull before any of it flashes, but it is moving right along. The induction timing is part of the reason I suppose, I couldn't mix, roll, tip, prep, sand at the same time. Maybe if I had 6 arms? You will need a proper respirator whether spraying or rolling. Epoxy is some rather nasty stuff. Come to think of it, if you have a wood burner in the shop for heat, roll/tip would likely pose a lesser hazard to fire than spraying would. Be safe........
