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michael mott

Removing the coating on magnetic copper wire

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Has anyone had any experience removing the clear coating that is used on copper wire used in relay coils and or transformers or electric motors?

 

I would like to do this without using any abrasives and also the wire I am hoping to do this with is .005" or 36 gauge.

 

Michael

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Michael,

 

I believe they still use lacquer on those, Michael.   Is there a manufacturer's name available to you and/or the part number?  Might be able to get a spec sheet off the web.

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Even easier... look for larger stranded wire made up of fine uncoated strands. Done.

 

But not quite... straighten the wire: clamp one end in vise, and firmly pull the wire until you feel it yield just a bit... let loose, and the wire will be straight!

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Before you get into things like lacquer thinner and paint strippers, try denatured alcohol. Back in the day, I believe a lot of that sort of coil wire was insulated with a coating of shellac and the color of the wire suggests this. If it's shellac, you're in luck. Just soak to soften and wipe off with a rag soaked in alcohol.

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I usually have success with either acetone or nitrocellulose lacquer thinner. For short lenghts, I may also roll the wire between two smooth pieces of hardwood until the lacquer peels off.

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I tried this game for an entirely diferent reason - i was trying to make some intermediate connections for some " physics stuff for the grandson.

Proved impossible without huge effort - so I went out and bought a reel of the suff uncoated wasnt too expensive

 

I used "Artistic Wire" which I think is available in Canada - lots of gauges

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