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06-02-2014, 08:28 PM | #1 |
Registered User
Join Date: Feb 2012
Location: Mission Viejo, CA
Posts: 1,856
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galvanized metal patching
i went to the metal store to get some stock to patch some holes here and there. I got 20gauge galvanized sheet. I couldnt find any non galvanized other than stainless or aluminum.
is it ok to use this? I thought I remembered something about it being dangerous to weld on galvanized? |
06-02-2014, 08:42 PM | #2 |
Member #1049
Join Date: Jun 2000
Location: Troy Montana
Posts: 3,940
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Re: galvanized metal patching
Here is some reading on the subject.
http://www.sperkoengineering.com/htm...Galvanized.pdf http://www.aws.org/technical/facts/FACT-25.pdf |
06-02-2014, 08:51 PM | #3 |
Registered User
Join Date: Feb 2012
Location: Mission Viejo, CA
Posts: 1,856
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Re: galvanized metal patching
hmm good links. so I wonder what you arent supposed to do with galvanized steel?
hmm maybe i was thinking stainless and electrolosis. |
06-03-2014, 08:30 AM | #4 |
Senior Member
Join Date: Jan 2007
Location: Turlock, CA
Posts: 8,795
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Re: galvanized metal patching
i'm not an expert on body work, but i would be hesitant to weld galvanized to bare steel. the properties are different and it could create poor welds or cracking. that and those fumes are no joke, don't mess with them.
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06-03-2014, 03:11 PM | #5 | |
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Join Date: Jan 2007
Location: Tucson
Posts: 2,183
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Re: galvanized metal patching
Quote:
Find a steel yard and get some 18 Ga cold rolled sheet. |
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06-03-2014, 03:15 PM | #6 |
Registered User
Join Date: Sep 2011
Location: Ark City, Kansas
Posts: 3,405
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Re: galvanized metal patching
You can weld it. You need to grind the galvanized plating off where it is going to be welded.
I would still look for something else. Try a hardware store. They usually have a rack w/ different sizes and gauges. |
06-03-2014, 04:43 PM | #7 |
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Join Date: Jan 2007
Location: Tucson
Posts: 2,183
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Re: galvanized metal patching
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06-03-2014, 03:54 PM | #8 |
Registered User
Join Date: Feb 2013
Location: Northwest NJ
Posts: 684
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Re: galvanized metal patching
If you have some old sheet metal laying around, such as fenders or hoods from 60's or 70's vehicles, cut your patches from those. I just patched the bottom of my stepside rear fenders with the top parts of old 72 front fenders that had good metal on the top (the bottoms were too far gone to repair). the curves matched the rear fenders perfectly.
Stay away from late model sheet metal though...too thin to work with. |
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