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-   -   Coating the armature . . . (https://www.fordbarn.com/forum/showthread.php?t=287361)

DannL 09-17-2020 10:13 AM

Coating the armature . . .
 

Any thoughts on what product would be suitable to coat the amature of a starter and/or generator (excluding the commutator of course). Polyurethane? Shellac?

RTPbee81 09-17-2020 10:19 AM

Re: Coating the amature . . .
 

Good question... i just ordered a can of
CRC Urethane Seal Coat Viscous Liquid Coating, Red

hope this is the right stuff, it's identified in the Model A Generator book, says to soak in it but I ordered a spray can, Is this going to work or am I asking for Trouble

Jim Brierley 09-17-2020 11:09 AM

Re: Coating the armature . . .
 

Should work fine.

fuzes45 09-17-2020 01:06 PM

Re: Coating the armature . . .
 

Building transformers, dipped coil in Varnish and baked.


Bob F

42merc 09-17-2020 03:01 PM

Re: Coating the armature . . .
 

Glyptol, made by GE, used in the industry.
Buy at your local electrical supply store.

BRENT in 10-uh-C 09-17-2020 05:13 PM

Re: Coating the armature . . .
 

Quote:

Originally Posted by 42merc (Post 1932647)
Glyptal, made by GE, used in the industry.
Buy at your local electrical supply store.

X2 on the Glyptol.

Local Grainger stores generally have it too.

GPierce 09-17-2020 05:59 PM

Re: Coating the armature . . .
 

Yes Glyptol. Have used for years on motor, alternator and starter repairs.

Joe K 09-19-2020 09:40 AM

Re: Coating the armature . . .
 

X4 on the Glyptol.

The power plant I worked at used Glyptol on EVERY motor, both exposed armature windings and the field coils. They claimed it prevented "working" of the wires under magnetic stress, and consequent wear-through of the varnish insulation.

It is a bitch to get off for re-winding, however. By the time you get to that point you're talking a major rebuild anyway.

It is also used a lot on the interior of cast iron motors/transmissions after tanking or blasting. Seals in the errant pieces of sand or grit and makes an interior surface the oil can "slip down on" easily.

https://www.amazon.com/Glyptal-Brush...516BM8VVKG3WC7

Joe K

CWPASADENA 09-19-2020 09:45 PM

Re: Coating the armature . . .
 

X5 on the Glyptol,

Have used it for a lot longer time than I would like to admit. The first time I used Glyptol was when I was working on Model A's to make a little money for collage. That was 66 years ago. Been using it every since.

Chris W.


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