Paint Thickness Gauge Q's

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Robert Freemond
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Joined: Tue Jan 24, 2012 4:11 am
Location: Van Nuys Ca.
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Paint Thickness Gauge Q's

Post by Robert Freemond »

I'm thinking of refinishing some past builds & would like to know how much finish I left on.
I don't know anything about a Coating Thickness Tester.
I took a quick look and saw that they can be quite expensive & wonder if there isn't a sweet spot
between quality & price.

David King
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Joined: Sat Jan 07, 2012 10:01 pm
Location: Portland, OR
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Re: Paint Thickness Gauge Q's

Post by David King »

Robert,

I think there are only two types of non-destructive coating thickness testers. One works over ferrous metals via magnetic principals and the other works via eddy currents over non-ferrous metals.

I've seen electron micrographs of violin varnish taken along the edge of a fissure. It's clearly a problem that needs a solution and maybe we can collectively figure out a way. Probably possible with very high frequency resonance using a piezo crystal or something but I think calibration would always be the hold up.

Robert Freemond
Posts: 110
Joined: Tue Jan 24, 2012 4:11 am
Location: Van Nuys Ca.
Contact:

Re: Paint Thickness Gauge Q's

Post by Robert Freemond »

Thanks, David
Looks like I'll have to find another way.

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