One of the great things about online networking is that you have instant access all kinds of people. Smart people. So when my mySpace friend emailed and asked if I had any tips on welding zinc, I put the word out among my network: mySpace and Facebook, and even emailed a few stellar welders I know.
And before the day’s end, I had an answer from my buddy over at Hell N Back Welding. He writes:
Best link I’ve found for proper procedure on zinc is here:
Soldering iron is the best option. I found some technical manuals on welding with TIG that say it’s appropriate for everything BUT zinc and lead.
Also there’s a discussion of the same question ie countertops here:
Apparently, ZINC is all the rage in countertops… I know this from This Old House magazine, it’s very French Bistro.