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Letter 41042 Hot dipped galvanized vs electrogalvanized [Texas]June 7, 2006 Clevis hangers that are to be used to support piping are available in hot dipped galvanized finish or Electro- Galvanized. My question is which coating is the better? Graeme Mc Dougall
June 8, 2006 Hello, Graeme. Very similar questions have been asked and answered many times on this site. So if you need a 2nd opinion, patient application of the search engine will yield it, but for a quick answer -- Electrogalvanized means zinc electroplated. Both electroplating and hot dipping can be used to apply a coating of zinc to steel. Zinc electroplating has a definite advantage in appearance and for close fitting parts, but hot dipping will give much better corrosion resistance because the zinc coating will be about ten times thicker.
Dear Reader: please choose what you want to do--
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