Do you still lead-fill quarter-panel seams? My body guy says they don’t do that anymore.
I still lead them, but I can’t say for how much longer. Most auto body supply places don’t carry lead or the supplies to do it anymore. Eastwood still carries the supplies ( lead is PN 31151) you need if you want to learn to do it yourself.
Most shops like the one you are using don’t lead the seams anymore because of the hazards of using lead. The biggest hazard is the acid—the acid is used to help the lead stick to the panels, but it gets everywhere and can cause problems and health issues. Inhaling lead and getting it on you is also quite bad. Finally, the fillers we have today are really good, so most shops use the fillers on the body seams rather than using lead. The lead is a much stronger fit, and some of the seams can be wide and deep, so I personally still lead the joints. I would say as long as your shop has a good welded assembly, the body fillers should work fine. It may be very soon that we won’t have the lead available to us anymore.