I want to use this as a sprayed on surface for future washings out of the coop. My husband knows how to paint cars and has sprayed this before. I want to spray the floor and half way up the walls over treated plywood. Does anyone know whether this will be toxic to the chickens? I am going to use the deep litter method over top. I read a thread that Rhino company said it's safe. Well of course they will say that. Has anyone used it without ill effects?