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:

Kay said...

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

Kirsty Vittetoe said...

Good to know!

shwet said...

Its interesting, i didn't know this.thanks for sharing.
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Pat Hatt said...

Good to know so one doesn't waste time and money

Debra She Who Seeks said...

Live and learn!

Sandra Cox said...

You are definitely the paint guru.

Martha said...

Good to know.

Christine said...

interesting

Mary Kirkland said...

I had no idea.

Su-sieee! Mac said...

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

Fundy Blue said...

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.