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Is your flux core welder laying down some horrible welds? Before you give up on it check this trick out first! So many people including pro welders make the mistake of running the wrong polarity when using a gasless flux core wire. For most general welding when using Stick (SMAW) and MIG processes you would use reverse polarity which mean (+) lead and () ground. This is also referred to electrode hot. The two processes that require straight polarity meaning electrode () and ground (+) are TIG and flux core (FCAW). Since MIG and Flux core are very similar it is very common that they are mistaken to both use the same polarity. So go out there and make sure you have your flux core machine set up properly before bashing it!