Welp.. after close to 3 years of trying to strip all of the under coating and crap from off my Z so I can seam weld the body panels and reinforcements.. ranging from chemical stripping, to wire wheels, to soda blasting, to nickel slag blasting, to grinders, to dual action sanders and dentist picks and a heat gun.. my car is ready for seam welding the over lapping panels.
After welding today.. I learned that no matter how hard you try to get rid of seam sealer.. when welding, the seam sealer from underneath melts and flows into the molten puddle, contaminating my welds. It sucks.. it really really sucks. I talked to a local shop and they recommended getting 1/2" strips of metal to overlap the seam and stitch weld around that to prevent seam sealer from melting into the weld.. sounds like a good idea.. but holy cow I am not looking forward to attempting this.
Any advice.. or is it inevitable that seam sealer will ruin my welds.