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Re: MIG brazing patch panels with silica bronze
Silica Bronze wire has no flux coating. It uses shielding gas Argon.
You can do butt joints provided you have correct root gap for proper capillary action to occur on back side allowing the joint to be finished on the top side.
an example would be sectioning a quarter Panel at the roof line or sill.
If you were replacing the lower section of a door skin (patch panel) a lap joint would be best.
Silica Bronze melts at 1900 F steel around 2700 F
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