I have read elsewhere on the board that Sulky does not adhere for long periods of time (years); it is more of a temporary basting spray. 505 is the only brand I use now, after trying several different ones, and it will hold for years. I like 505 for several reasons, one of which is that it does not have the overpowering stinky odor that others have (although you still need to use it in a well-ventilated area, for obvious health reasons).