Why is my Sealey Welding System producing porous welds?
- TtonyathomasAug 20, 2025
Porous welds can occur due to several reasons. There might be no gas flow, so ensure you open the gas cylinder and regulate the gas flow. The gas cup could be clogged, so clean or replace it. A draft might be blowing away the shielding gas, in which case you should screen off the welding site or increase the gas flow. Also, rusty or dirty joints can cause this issue, so clean or grind the workpiece. Ensure the torch is the correct distance (8-10mm) and angle (approximately 75 degrees) from the workpiece. Finally, check for gas leaks in hoses, connections, and the torch assembly.