I spray baste. Only use 505 now, having found it to be the best of the ones I've tried. 505 does not have that horrible, pervasive odor that some have; however, that doesn't mean it is safe to breathe! I use it only in a large, well-ventilated room (community space) or outside in the driveway. A couple of sawhorses and a large piece of plywood can work in a garage or outside. Some people use a garage wall, but I found it more difficult to work on a wall.