It's like someone else said. It works great for lawn mowers and wicker chairs. I got the gray "home use" primer. The can said it was the same as the automotive except it was not as good at preventing rust. That may be my problem. BTW, I used the LusterKote primer under almost exact conditions as the Rustolium. I admit that the nozzle and delivery of this product is very poor. However, it is very tough. The LusterKote passes my simplistic and crude scratch test while the Rustolium still fails. That's all I know.