Is this a daily driver to be driven in all weather including snow and salt? I would not be a fan of putting play-doh between the fender and bedsides at all. I would think it would hold dirt and salt as well as anything else you can think of. If a restored truck that had welting applied has rusted out at that joint, I would more suspect the owner's caretaking prowess, more than pointing the finger at the welting. I think this is being overthought. You've got it, use it. JMHO.
Last edited by k10; 10/15/2011 2:58 AM.
