Spot welding Zintec,
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  1. #1
    Official RnS Addict v8ian's Avatar
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    Spot welding Zintec,

    Im about to start repairing some of the bodywork on my car, I have folded up some parts to replace the sills and outriggers in Zintec, I have seen a few people spot weld zintec without grinding it back, Is that ok or am I better to grind back where I am going to spot weld??
    Last edited by v8ian; 05-05-2014 at 09:00.

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    Rods 'n' Sods Junkie
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    Zintec sheet can be spot welded without grinding

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    Official RnS Addict fad15's Avatar
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    Be careful of the fumes they are very bad for you. Best to wear a respirator or make sure you have local ventilation on it. Seriously the fumes are about as bad as you can get.
    built by hand NOT by computer

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    . Captain Scarlet's Avatar
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    Yes zintec is ok to spotted weld ,it is or was done on mass production car components,done millions of spots on them,on spot welding machine,no PPE health and safety back then though.and I'm still here no probs,though that maybe a matter of opinion
    I thought galvanised coating was the real enemy.

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    Official RnS Addict mygasser's Avatar
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    Quote Originally Posted by Captain Scarlet View Post
    Yes zintec is ok to spotted weld ,it is or was done on mass production car components,done millions of spots on them,on spot welding machine,no PPE health and safety back then though.and I'm still here no probs,though that maybe a matter of opinion
    I thought galvanised coating was the real enemy.
    yes i thought galvanising was the bad one to breath in too.
    need a job done on your project? i may be able to help.

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    Official RnS Addict fad15's Avatar
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    This may help...

    MIG welding and angle grinding results in metal vapors.

    Aluminium alloy vapour and fumes from zinc coatings are poisonous. Exposure can result in heavy metal poisoning (welding shivers) - flu like symptoms that can persist for a few days. The zinc coating should be removed from galvanised steel before welding, and wear a proper charcoal welding mask when you go anywhere near zinc.
    built by hand NOT by computer

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    Rods 'n' Sods Junkie
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    Zince produces Phosgene gas when welded
    Phosgene gas was used in mustard gas .
    Grinding can also produce the gas
    Drink some milk before welding never weld in confined space. Spot welding is the least harmful but still take procautions

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    Quote Originally Posted by Smokey View Post
    Zince produces Phosgene gas when welded
    Phosgene gas was used in mustard gas .
    Grinding can also produce the gas
    Drink some milk before welding never weld in confined space. Spot welding is the least harmful but still take procautions
    Sorry but that's not true; zinc has nothing to do with phosgene. Welding after cleaning with chlorinated hydrocarbons, like some brake cleaners, can produce phosgene though. There's lots of good stuff on welding health hazards here https://www.osha.gov/doc/outreachtra.../weldhlth.html

  11. #9
    I'm a grown up drunk! chevy2's Avatar
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    Used zintec sheet steel quite a few times but not my material of choice due to the fume issue,
    normally thoroughly clean off the area to be welded with a poly disc but you still get a slight powder around the weld and normally use a welding mask as theres still some fumes,
    only use now if its a premade panel that has come in zintec.

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    Official RnS Addict fad15's Avatar
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    Sorry: The milk thing is a crock of S***, never proved to be effective.
    built by hand NOT by computer

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