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hydrogenhead
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Join Date: Jan 2011
Location: Scotland
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Best Varnish for Hub Motor Stator Coils

01/13/2014 2:45 AM

I was looking online and could not find insulation varnish for motor stators. Would caliper paint be any good or would clear nitrocellulose lacquer be better? Those are the only things I have.
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kramarat
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#1

Re: Best varnish for hub motor stator coils

01/13/2014 4:19 AM

Use the search term "winding varnish".

https://duckduckgo.com/?q=winding+varnish

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hydrogenhead
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#2
In reply to #1

Re: Best varnish for hub motor stator coils

01/13/2014 6:43 AM

I have tried that but Ebay doesn't have any. I also need to paint the magnets on the motor as well and was wondering if caliper paint would be any good.
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kramarat
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#3
In reply to #2

Re: Best varnish for hub motor stator coils

01/13/2014 6:53 AM

I don't know. Why does it have to come from Ebay? and.... Why do you have to paint the magnets?

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TonyS
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#6
In reply to #3

Re: Best varnish for hub motor stator coils

01/13/2014 8:18 PM

Why does it have to come from Ebay?

He's from Scotland and has lost the combination to his sporran. Only thing I can think of.

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ozzb
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#4

Re: Best varnish for hub motor stator coils

01/13/2014 7:03 AM

http://www.mcmaster.com/#electrical-insulating-varnish/=q8clik

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Fredski
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#5

Re: Best Varnish for Hub Motor Stator Coils

01/13/2014 6:43 PM

is caliper paint known for its electrical insulating properties?
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hydrogenhead
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#9
In reply to #5

Re: Best Varnish for Hub Motor Stator Coils

01/14/2014 6:44 AM

36v shouldn't cause the paint to break down. I thought that it would need over 1000v to do that.
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mrehmus
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#7

Re: Best Varnish for Hub Motor Stator Coils

01/13/2014 11:05 PM

I thought Glyptal (sp?) was a good choice.

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geraldpaxton
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#10
In reply to #7

Re: Best Varnish for Hub Motor Stator Coils

01/14/2014 8:10 AM

Glyptal is a high silaca solids varnish, reddish in color, used for motor and transformer coil stabilation and insulation, I've used it several times to get rid of that irritating buzz.You might find a simular product under a different trade name.
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jmueller
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#8

Re: Best Varnish for Hub Motor Stator Coils

01/14/2014 12:16 AM

Nitrocellulose lacquer in a hot motor??? Are you kidding??? --JMM
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ndt-tom
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#11
In reply to #8

Re: Best Varnish for Hub Motor Stator Coils

01/14/2014 5:54 PM

... ... Actually, heating nitro-lac's is common, to facilitate quick build-up using high-solids varieties as briefed here: (tho' I doubt that it exhibits the <dry> temp-rating of today's wire-enamels(!))

For the 'OP', mrehmus at post#7 ("GA") provided the 'bestest-rightest' answer...tho' he ought to have provided a simple LINK to some info on same...(!)

I _WONDER : how many readers are aware of the 'earliest history' of 'nitrocellulose lacquer'...?

From one of NACE's Coatings Courses (been thru 4 of them...don't recall which one divulged this)...
DuPont made a bunch of money 'developing' the first synthetic lacquer. They got paid by the government to do so, as the coating was 'discovered' while seeking ways to get rid of a humongous stockpile of unused bombs (and the stuff that went into them!) after WW-I.

The veracity of this statement (above) is 'somewhat_acknowledged' via the following:

"...DuPont introduced nitrocellulose lacquer, derived from a plentiful supply of World War I surplus gun cotton"... found at THIS page.
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Users who posted comments:

Fredski (1); geraldpaxton (1); hydrogenhead (2); jmueller (1); kramarat (2); mrehmus (1); ndt-tom (1); ozzb (1); TonyS (1)

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