Gasless MIG Welders: Are They Any Good? We Find Out ...
The flux core wire in gasless MIG welders uses compounds that produce a protective vapor during welding. This makes gasless MIG welders more stable and better suited for outdoor use, as they are not vulnerable to contamination from wind that causes weaker, lower-quality welds.. Gas MIG welders, on the other hand, can usually only be used in an indoor area that is free from wind or drafts.
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