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Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ

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Will a magnet stick to sheet metal after I paint it?

I am looking to get a large piece of sheet metal and painting it the color of my walls to use as a large magnet board in my kitchen. I am wondering if the magnets will cling through the top coat?

Marcy Neuman
hobby - Buffalo
April 13, 2010

April 14, 2010

Hi, Marcy. It will not be a problem. You cannot "insulate" magnetism with anything, let alone paint. The only effect of the paint is that the magnet will be a thousandth of an inch away from the surface (or whatever the paint thickness is). Magnetic force is proportional to distance, but this distance is negligible.

Regards,

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey

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