We have a 14 foot stock trailer that is approximately 22 years old and the rust had begun after about 5 years as Oklahoma has high humidity and we also fight mold in our state.
I had painted the rust with inhibitor which seemed to slow it down for about 6 months. Then it seemed to spread even more. Finally, I heard about RustBustR and I installed it on our trailer. Behold! Within 3 months the rust just seemed to fade out. There are still 2 really bad spots about the size of a mans large hand on the front that is taking longer to fade.
I wish we had RustBustR sooner! We recommend it highly. I put a set on my car and one on our wood stove that was rusting. It stopped the rust immediately on the stove.
We personally would recommend RustBustR as prevention for rust, yet it will work on existing rust, too.
