I ride pretty rough terrain and the frame rails and the bottom of the frame tend to lose all paint and start to rust. I was wondering if anyone has ever tried to coat the bottom of the frame with the spray in bedliner stuff. It seems that it would be durable and keep the frame from chipping and rusting. Has anyone tried this before? I figured it would be more durable than painting or powdercoating and they have those do it yourself kits for about $85 bucks. What to you guys think?