I was under my trailer this last weekend and I was surprised by the rust under it. It is a 2003 trailer and what a mess. The scale on the axle tube and springs. I have never owned a trailer that had so much rust. The undercoat from the factory must have been the cheapest paint they could buy. Can I use rubber base undercoat paint? The Hensley Arrow hitch also needs paint so I will do the front and gas bottles with spray paint. I have always painted my frame and steps after 5 years but this trailer is a mess.