Welding galvanized metal

jeremy in NE · Jun 21, 2014

Got a water tank that crack on the seam. Can I weld it ok. Thanks

Greg K · Jun 21, 2014

Be careful breathing the fumes because they are dangerous. Drink a BIG glass of milk when you're done to help flush it out of your system, at least that is the advice from a friend of mine who has been welding it for 20 years.

Anonymous-0 · Jun 21, 2014

Just clean it up with a grinder and treat it like mild steel , weld away.

willys53allis · Jun 21, 2014

Yes you can weld weld it. Grind to clean metal and keep your face out of the welding fumes! I"ve used a box fan to blow the fumes clear.

F.E.Bear · Jun 21, 2014

Many years ago my brother and I arc brazed a LOT of galvanized duct piping. The welder instructor told us to drink a LOT of milk while doing the brazing. We did and we had no ill effects from it. My younger brother is in his high 70's and I'm older than that, so I guess it works to drink milk and it sure didn't hurt anything.

Fred

David G · Jun 21, 2014

As suggested, grind the galvanizing off where you are welding and keep well ventilated.

David G · Jun 21, 2014

The issue is called metal fume fever.

ss55 · Jun 21, 2014

Some alternatives to welding a water tank could be:
Aquarium sealer (non-toxic, looks like a clear silicon caulk) $5 and
3M Boat Sealer $15 (white, very sticky for at least a week, 12 ounce tube?).

I've used both. They both stay flexible and both seal very well under water. For human consumption, I'd try the aquarium sealer first. For livestock, I'd use the 3M Boat Sealer. I have purchased both off-the shelf at Walmart. You could also check if they are available on-line from Walmart, Amazon, any hardware store, etc.

uncle henry · Jun 21, 2014

i use a fan to blow the fumes away when i"m welding galvanized metal they make a spray can of stuff that will regalvaniz the metal

Brian Schmidt · Jun 21, 2014

Another vote on the milk. Dad always told us to drink the big glass of it when welding on water pipes etc. It worked for me all these years. Probably get cancer from it or something. Probably not good for you. Best to gring it all off if possible and ventilate well.

the flying belgian · Jun 21, 2014

I would not do it. Can you just drill and bolt a patch over it? use a piece of old inner tube as a gasket.

Anonymous-0 · Jun 21, 2014

I've heard it called zinc chills. Use a fan and keep out of the fumes and you can weld it.

Welding galvanized metal

jeremy in NE

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Greg K

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Anonymous-0

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willys53allis

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F.E.Bear

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David G

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David G

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ss55

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uncle henry

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Brian Schmidt

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the flying belgian

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Anonymous-0

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