Re: Galvanized Finish

Posted by Janicholson on June 16, 2005 at 09:18:19 from (199.17.6.33):

In Reply to: Galvanized Finish posted by Pharmall on June 16, 2005 at 07:34:25:

The original finish was electroplated galvanized. This process places a thin layer of zink on the steel (less than .0001" I believe). The zinc oxidizes (that grey smudge on your white clothes after handling galvanized iron) at the thickness of electroplate, it won,t last very long (unless electroplated for a long expensive time). Hot dipped galvanizing uses a molten bath of zinc with a deposit in the range of .005-.010" This thickness will last three lifetimes. High line towers for electrical power distribution are hot dipped. They last. The finish is not quite as smooth with hot dipped, but the results are great. One issue not mentioned here is that there are now primers on the market to increase the sticking of paint to galvanized metal. Clean (deep rotary wire brush) then prime, then silver paint is a good alternative. Hope I helped some, JimN

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• Re: Galvanized Finish Pharmall 10:05:47 06/16/05 (0)

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