I have a 92 shadow I rust got back from sandblaster. I am trying to coat with rust bullet. I have read the instructions for rust bullet and it says Do Not Thin Out. Now I not new to painting I have painted a few cars but not many and know from them that you thin paint so it flows. I have a hvlp gravity feed spray gun, using a 1.8 tip. Its not a high dollar spray gun but it works. Now I have tried to spray the rust bullet with out thinning it and its sprays than plugs, than sprays than plugs. So I would have to say that the rust bullet needs to be thinned but the company says DO NOT THIN. Any advise or suggestions would be appreciated. I need to get this car coated before its rusts up and don't really want to bush paint it.