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Whiz part wanted  Rate Topic 
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 Posted: Sun Nov 10th, 2019 11:44 pm
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William Dunlap
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Joined: Fri Jan 31st, 2014
Location: Kula, Maui, Hawaii USA
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I recently bought a GE Whiz oscillator and the loop just will not paint. Every time I lay a coat on it, tons of little bubbles pop up on it.So I'd like to buy a brass one if someone has one.
Cheers,
Bill

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 Posted: Mon Nov 11th, 2019 04:47 am
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Richard Littlepage
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Do you prime it first?

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 Posted: Mon Nov 11th, 2019 04:46 pm
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Dan Morris
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Bill, I assume that is a pot metal ring.  I have not heard of pot metal not taking paint, but do know it is  about impossible to powder coat for the reasons you mentioned. 
If it were mine I would try a couple of things.  First I would put it in the oven at about 400 degrees for about 20 minutes.  When cool, sand off all of the stuff that has boiled out of it.  Then put a coat of shellac on it before painting it.  Shellac is an excellent sealer.  I used to use it on furniture as an undercoat so the final finish would not "fish eye". 
Good luck.  

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 Posted: Mon Nov 11th, 2019 06:22 pm
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William Dunlap
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It's the primer that is bubbling. I've been painting for many years and I've never seen anything this bad. What I suspect is that there is a galvanic reaction going on. It requires dissimilar metals in the presence of a liquid other than absolute neutral Ph. Hydrogen gas is released. This isn't contaminants causing this.
If shellac is neutral ph, it could work.
The other pot metal parts on the fan had no such problem, ironically.
Cheers,
Bill

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