[Ryan Mclean]

I’m stuck cause my Esab Rebel 235 welds look spotty on steel, Using 1/16-inch tungsten at 20 CFH argon, and welds has dark patches. what is causing this?

[Chad King]

Spotty welds comes from poor prep or settings, Clean steel with acetone before welding, My Esab Rebel had same issue, Use 120 amps for 1/8-inch steel, Set AC balance to 65%, Check tungsten sharpness, Use 25 CFH argon, Ensure clean joint fit-up.

[Natasha Deleon]

Try 2% lanthanated tungsten, it makes welds cleaner.

[Dennis Solomon]

dark patches comes from dirty steel surfaces, Degrease with alcohol thorough before welding, My Esab welds clean now, Check gas flow consistency.

[Gary Bryant]

Check gas coverage, low argon causes spots.

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