plating, anodizing, & finishing Q&As since 1989
Pretreatment of areas where welding or grinding remove galvanizing
I am using Electrogalvanized sheet for making enclosures. The spec is EN 10152 Ze 25/ZE 25 , commercial grade. I have problems with some components which undergoes welding and grinding on the corners / edges of the components.The grinding removes the zinc coating on the components.I want to know the method of treating the exposed ground areas.What will passing hours in salt spray then?Ramadoss Raja
Sheet steel enclosures - Chennai, TamilNadu and INDIA
I am no expert in this area, especially QC Testing; however, in the manufacture of galvanized welded tubing there is a spray process that applies galvanizing to the welded area. How well this process hold up to testing is unknown to me, but I suspect the industry would not use it if it wasn't very effective.
retired business owner - Hatboro, Pennsylvania
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