Picked up a bundle of 8" bars marked 'Bell System Sealing Solder' at a yard sale this morning. Stuff has got to be pre-1984...the year Bell Tel was broken up under an anti-trust ruling...'cause the label is cast into the bars along with the old Bell Telephone logo. Anyone got a clue to what the alloy might be? I ran an online search and didn't get a single hit for 'sealing solder' but did find considerable info on 'wiping solder' which seems to go anything from 60(Pb)/40(Sn) to 50/50. Is it possible that 'sealing' and 'wiping' solders are the same animal?
Bill