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Serious question, do you still use body filler on quarter panel seams?
I used to always skim coat the seam with filler after welding, but after a job in Chandler last month where the filler cracked within a week, I switched to just grinding the weld smooth and using a flexible seam sealer. The change saved me about $15 in materials and an hour of work per panel. What's your standard method for finishing those welded seams now?
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kim_martin7mo ago
My buddy in Tempe had the same problem with filler on a '68 Mustang restoration. He switched to that self-leveling seam sealer from the parts store and it's held up for two Arizona summers now. Honestly, I just grind the weld flat and hit it with epoxy primer before the sealer.
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charlie_schmidt7mo ago
Wait, you're grinding welds flat without any filler at all? That's wild! I've always been told you need at least a skim coat to block any tiny pits. Your buddy's Mustang holding up in that heat is a pretty solid test though.
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the_john7mo ago
Heat cycling makes filler crack, but epoxy primer flexes with the metal.
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