Lead priming

[Richard Budig]

Would someone please tell me about lead priming?

Primarily, which paint/lead primer do you use? Plain old flake white? Over a glue sized canvas? Lead white on a pre-primed canvass, such as a Fredrix?

I read in a Richard Schmid book about how he lead-primed his canvas, but in a later book, he said had quit doing that. But, when he was doing it, he said he bought a lead carbonate paint from a hardware store somewhere. Hmmm?

Up to now, I've been using acrylic primed canvas, or priming my surface with acrylic gesso. I'd like to know more. I did a search here, but I'm still confused . . . not a surprise coming from me.