Caulking lead??

[sniper7369]

Hey all, I picked up 170+ lbs of lead today and I found four large ingots in the pile that are marked "Caulking Lead". Is that pure lead or an alloy?

[DLCTEX]

Probably pure lead for cast iron sewer pipe.

[Frank46]

As Dale said for cast iron sewer pipes. Usually poured into the joints to seal them. If you ever run into a bunch of lead that looks like tiny noodles its the same thing. It was forced into the bell joints and a wooden tool was used to pack it into the joint.
Some of the older gas mains 6' diameter where I used to work were caulked. When they were retired in place and backfilled yours truely managed to get a couple hundred pounds of this stuff. Made a lot of boolits outta that. Lead is where you find it, sometimes in the weirdest places. Always find plumbers lead at the scrapyard. Usually in 5 lb ingots. Frank