Hey guys when you are doing a build how do you treat the frame. I have a couple spots that was grinded down to the bare frame. Looks like they did that to get rid of rust. And where they welded on the hardtail is bare metal too. Just wondering if I should put something on those areas while I continue to build it or leave it alone till all the welding is done such as seat hinges bungs and whatever else I need to do.