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Old 18th January 2012, 08:41 PM   #1
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Default Removing enamel from magnet wire

hi, all

have you ever stripped hundreds of magnet wire in seconds,

ok, just put number of enamelled wires together , burn it and then dip it in concentrated HCL for about 5 seconds. then wipe the wire immediately with a soft cloth. and you are done !

thanks.

check out my youtube video:

Removing copper enamel.flv - YouTube
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Old 18th April 2012, 03:55 PM   #2
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There was some discussion on this somewhere on the tube preamp thread at
http://www.diyaudio.com/forums/tubes...preamp-15.html

The video looks a bit dangerous as concentrated HCL in a bottle cap is 'asking' for a catastrophe to happen ! Unless that is HCL used for household cleaning purposes. It is still bad as it fumes and can cause burns on the skin and eyes ! Not to mention burned clothes and furniture !

Well it looks like ALL methods to remove the enamel are fraught with danger if we use chemicals.

I went searching for the supplier who sold me the enamel stripper liquid many years ago. He has shut shop and moved. But I did find another supplier. The solvent is called E-Sol ( copper wire enamel remover).
Key ingredients are listed as Methylene Chloride and Phenylic Acid.
It sure removes the enamel fast and no heating required or application of any force. Just wipe clean after a minute or two. However the liquid seems as dangerous as concentrated HCL or worse (?).
NOT FOR NEWBIES !!!!!!!!!!!!!!!!!!!!!!!!!!!!!
If you aren't a careful person do not bother to try it ! Your work spot should also be a clean area otherwise spilled liquid could cause disaster.

Sy any comments on the chemicals ? Wonder what else they have in it . Let me know what all to check for. The list only says 'key' ingredients...not all of them. I'll put up some pictures later. No time just now.

Edit: Text on the label is interesting. says " Warning: Highly corrosive to skin. No liability accepted for accidents arising in handling or in use . For Industrial use only."
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Last edited by ashok; 18th April 2012 at 04:02 PM.
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Old 4th May 2012, 08:27 AM   #3
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Quick cigarette lighter should work for a one off lob.

Gajanan Phadte
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Old 4th May 2012, 10:26 AM   #4
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Quote:
Originally Posted by gmphadte View Post
Quick cigarette lighter should work for a one off lob.

Gajanan Phadte
but this will leave some oxide which will still need to be removed/scraped.
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Old 4th May 2012, 10:49 AM   #5
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Maybe some liquid flux might avoid scraping ?
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Old 4th May 2012, 11:40 AM   #6
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post2 link.
Where is it supposed to go to?

The link took me to post151, which does not discuss enamel removal.
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Old 4th May 2012, 11:54 AM   #7
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could have been a page link rather than a post link.. it took me to post 161. page links will vary based on what the end user has their posts per page set at.

I used a sanding drum on my dremel for stripping enamel off 407 1/2" Sanding Drum / Model: 407 It worked well and was very quick and the wire tinned very easily

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Old 4th May 2012, 12:07 PM   #8
AndrewT is offline AndrewT  Scotland
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I scrape the enamel off, with a sharp edge.

This is slow and suits short lengths because they are easy to rotate.

Removing by scraping the end of a long length is a real pain.
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Old 4th May 2012, 12:34 PM   #9
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I thought it was just supposed to burn off during soldering... That seems to be what they do in the stuff I've taken apart.
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Old 4th May 2012, 12:45 PM   #10
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It depends on the enamel. Some is designed to do just that. Some is designed to be more heat resistant and won't burn off during soldering.

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