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Re: Lead removeal
29tons #1431232 Wed Nov 24 2021 08:17 PM
Joined: May 2015
Posts: 4,480
Housekeeping (Moderator) Making a Stovebolt Bed & Paint and Body Shop Forums
Interesting factoid: To identify if a stick of lead solder has tin in it, hold it up to your ear and bend it. If it makes noise (called "tin cry") it has tin in it. My dad taught that to me at his plumbing shop when I was a kid.

Tin in lead makes it flow better. A 70/30 lead/tin alloy is typical solder (but no longer legal for soldering water pipes).


Kevin
First car '29 Ford Special Coupe
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Re: Lead removeal
klhansen #1431293 Thu Nov 25 2021 05:06 AM
Joined: Mar 2020
Posts: 121
N
'Bolter
Originally Posted by klhansen
Interesting factoid: To identify if a stick of lead solder has tin in it, hold it up to your ear and bend it. If it makes noise (called "tin cry") it has tin in it. My dad taught that to me at his plumbing shop when I was a kid.

Tin in lead makes it flow better. A 70/30 lead/tin alloy is typical solder (but no longer legal for soldering water pipes).

That IS an interesting factoid!


1949 Chevrolet 3/4 Ton - Still Solid.
Re: Lead removeal
29tons #1431316 Thu Nov 25 2021 02:39 PM
Joined: Feb 2004
Posts: 23,216
H
'Bolter
When I helped rebuild the distillery at E & J Gallo winery in 1979 they had us using lead/tin solder to install the copper evaporator cups. Every backwoods moonshiner knows better than to do that! That still was steam powered, 6 feet across, five stories tall, and capable of producing 2K gallons per hour of 99.5% pure alcohol (190 proof) from the dregs and leftovers of the winemaking process that still contained some alcohol. It was used to fortify the apple and pear juice based generic white wine used in products like Boone's Farm wine, and Bartles and James wine coolers. That stuff would only ferment to around 8% alcohol content due to a low sugar concentration. The raw alcohol brought it up to 12%, then it was colored and flavored artificially. At least it was marginally better than Mad Dog 20/20!
Jerry


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