I believe that Clay is pointing out that you are putting yourself at risk by welding galvanized steel. It puts out some seriously nasty fumes.
Thank you for the concern, but I do all my welding outside with fan, so ventilation is very good (needless to say that I don't use gas ). I don't want to sound argumentative, but I have heard of the health hazards of welding galvanized and did a rather extensive research on the topic. I've read about flu like symptoms and such, but there is no definitive and conclusive evidence of permanent health risk. If you know of any research articles to the contrary, I would love to read them. My second point is that Restoration Design - a premier provider of sheet metal panels - uses galvanneal steel. I asked Peter that question, here's the thread, page #3, posts #3 and #4
http://www.914world.com/bbs2/index.php?sho...ea100&st=40
And my last point is how they fix body panels of modern day galvanized cars. I realize that some panels are glued, riveted etc., but there must be some welding done.
Also, take a look at content of weld thru primers, they consist of 93-95% zinc. I just purchased Engman kit and it came with weld thru primer as well which I think is a great idea.