Letter 21079

White rust appears in galvanized pipes  

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Sir ,

We see that after 5-6 months the galvanized pipes get white rust on areas of contact with other pipes in a bundle. How we could finish White rust.

Muhammad Yousuf
IIL Pakistan - Karachi, Sind., Pakistan

I assume you chromate them and dry them? I, and probably most people, dislike saying "Why don't you try blah-blah-blah" only to have the inquirer come back with "We already tried that". It's a waste of everybody's time. So let's start the other way with you telling us what you tried :-)

Thanks.

Ted Mooney, P.E.  finishing.com Brick, New Jersey

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