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If I stitch-weld, will there be uncoated areas after galvanizing?
When stitch-welding is used, there is a possibility of gas release between gaps, which will prevent the galvanized coating from forming in these areas. By leaving at least a 3/32” (2.4 mm) gap between the contacting surfaces, gases are allowed to escape and cleaning solutions and molten zinc are allowed to flow in between the surfaces for a complete and uniform coating.