Weeping welds stain the zinc surface at the welded connections on the steel. Caused by entrapped cleaning solutions that penetrate the space between the two pieces, weeping welds can be avoided by providing a 3/32 (2.4mm) or larger gap between the two pieces when welding them. This will allow the zinc to penetrate the gap. The weld must then be made with gaps instead of continuous weld bead, actually making a stronger joint when the process is complete. Weeping welds, as seen in the image to the right, are not the responsibility of the galvanizer and are not cause for rejection.
© 2023 American Galvanizers Association. The material provided herein has been developed to provide accurate and authoritative information about after-fabrication hot-dip galvanized steel. This material provides general information only and is not intended as a substitute for competent professional examination and verification as to suitability and applicability. The information provided herein is not intended as a representation or warranty on the part of the AGA. Anyone making use of this information assumes all liability arising from such use.