Tuesday, October 16, 2018

Fact of the Day: Painting Galvanized Metal

While many use oil-based paints and primers to cover metal surfaces and they do well at adhesion and rust prevention, they cannot paint over a galvanized metal surface. The zinc in the galvanized metal reacts to the alkyd in the paint/primer and creates a "soapy" film in the process which cause the paint to peel off in very little time.  

11 comments:

  1. This is good to know. I wish you were here in Hawaii to advise about how to paint our house.

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  2. Its interesting, i didn't know this.thanks for sharing.
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  3. Good to know so one doesn't waste time and money

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  4. You are definitely the paint guru.

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  5. Okay, then, I won't paint our shed. I was eyeing it this afternoon.

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  6. I know so little about paint, but I know who to ask! Pretty cool about the reaction between the zinc and alkyd ~ not so cool if you wasted time and money trying to paint the galvanized metal.

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