View Full Version : Is heating duct pure tin
tbj555
10-20-2012, 12:18 PM
I have a source of a lot of scrap tin from heating duct can anyone tell me if its pure tin?
Roger Ronas
10-20-2012, 12:25 PM
I don't think so.
It's the same as people calling cans "tin cans" They are steel just in a thin variety. No tin to be had.
Roger
fryboy
10-20-2012, 01:28 PM
worse they're not even tinned ... they be zinc'ed ( galvanized )
tbj555
10-21-2012, 07:48 AM
Thanks for the info
Revolver
10-21-2012, 07:51 AM
I investigated some "vintage tin ceiling" on craigslist last year. It wasn't tin, at least the stuff I looked at wasn't.
Tin Foil
Tin Can
Tin Ceiling
Maybe once it was but not so much now.
Sasquatch-1
10-21-2012, 08:00 AM
I remember when I started out a book said to use old toothpaste tubes for a tin source. The plastic just didn't want to flux into the mix. :groner:
Alan in Vermont
10-21-2012, 03:01 PM
<----- Remembers when toothpaste tubes were metal so at one time it probably was tin.
trapper9260
10-21-2012, 03:09 PM
<----- Remembers when toothpaste tubes were metal so at one time it probably was tin.
I was thinking it was lead for how easy it was to melt and roll up and same as airplane glue tubes .
Ducting sheetmetal is galvanized (zinc) steel.
imashooter2
10-21-2012, 03:53 PM
<----- Remembers when toothpaste tubes were metal so at one time it probably was tin.
Yep. My Father and I used them to sweeten cable sheath for .38 wadcutters. Lots of medical ointment tubes were also tin.
Tons and tons of them sitting in landfills...
Alchemist
10-23-2012, 09:49 PM
I used to be a "tinner" in my younger days....but the only tin in the sheet metal trade now is in the solder used to waterproof roof flashing joints--and most of those get caulked instead of soldered.
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