I know all the usual warnings about this material when stick, Mig, Tig or even brazing with flame.......but how about when spot welding?
I'm wondering if the small concentrated heat spot and short duration is enough to not set off the fumes?
Sure would save a lot of work not having to scrape/sand/polish all that off first.
No, it's gonna fume no matter what and you gotta run it super hot. We used to run straight co2 to get the temps up. You might not smoke too bad spot welding and you can totally do it...just keep fresh air moving.
Work outside if you can to keep the air fresh.
It has a distinct smell. You will know if you are breathing it and the headache later will confirm it.
Forgot to add. Drink some milk before you do it.
NOHOME said:It has a distinct smell.
"Sweaty Onions"
It has a distinct look too, yellow fuzzy smoke. The worst headache I've ever had do not recommend.
I'll echo the others: Do it, but use very good ventilation. If you have a PAPR system, use that.
The floating threads will confirm that zinc is airborne. Don't breathe those.
I'm actually headed to get a new respirator today for this reason. I have a fan and I've welded small bits in my shop without issue, trying to grind off the zinc before I weld. However I need to weld several longer welds on a doorway in there and I figure the respirator will help.
You can easily remove the galvanizing using muriatic acid....After welding just go over the area with cold galv
https://www.amazon.com/Rust-Oleum-7585838-Spray-Paint-20-Ounce/dp/B00106H68W
Yea its fine, spot welding galvanized will only make a little bit of poisonous gas, lol. But seriously I've done it against my better judgment and at a minimum do it outside, hold your breath when you pull the trigger then just back away quickly after you tack it.
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