As you can see in my pics I it was not leaded and you saw the telegraphing... Ill listen to a PRO on this one
I just got info from one of the best Mopar resto guys around well...... read it for yourself ....LEAD ONLY
The quality of plastic fillers has progressed immensely since their introduction and are in my opinion a better option than lead in most cases. Keep in mind that both lead & plastic are both fillers and their use should be minimized by proper metalwork.
While lead or body solder has been all but replaced by plastic fillers, there are a couple situations where I feel lead is worth the extra trouble & expense to use…
When filling is needed on the edge of panel where it may be subject to bumping, lead is preferred.
The other place I insist on using lead is on the roof seams and rocker panel to quarter joints. These seams are vulnerable to “telegraphing”. A condition where the seam becomes visible in the hot sun. It’s caused by differences in expansion of the different metal thicknesses and stress differences of the panels. Use of any plastic based filler will not stop it!...This includes All Metal, Metal-To-Metal, Tiger Hair, DuraGlas, any ‘glass strand fillers, etc. The only cure I’ve had success with is to lead the seam.
Leadwork can haunt you if it’s not done exactly right. Every step must be done correctly.
