[portable] — Gdp E309 Better

| Symptom | Root Cause | |--------|-------------| | | Too much dilution from carbon steel; ferrite content too low (<5 FN). | | Magnetic arc blow | High DC current; improper grounding. | | Slag sticking | Wrong travel angle or excessive weaving. | | Porosity | Contaminated base metal (oil, mill scale, moisture). | | Poor puddle control | Incompatible base metals (e.g., high-sulfur steel). |

Usually runs best on DCEP (Direct Current Electrode Positive) for deep penetration. gdp e309 better

The E309 is a "specialist" that acts as a bridge between different metal families. 1. Dissimilar Metal Bonding | Symptom | Root Cause | |--------|-------------| |