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Butt weld or lap weld? | Butt weld or lap weld? | ||
| − | Importance of weld-through primer? Weld-through primer is a zinc-rich coating that conducts current from a welder. It can provide protection on lap welds and inner weld seams. | + | Importance of weld-through primer? Weld-through primer is a zinc-rich coating that conducts current from a welder. It can provide protection on lap welds and inner weld seams. List a few commercially available weld-through primers here. 3M, U-Pol, etc. |
===Soda blasting?=== | ===Soda blasting?=== | ||
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