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Old 14th August 2012, 11:21 PM   #1
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Join Date: Jul 2012
Default How to remove wire insulation?

My denon headphones has a broken wire at the top of the plug. I cut it open and the left/right wire are covered in some sort of "tin" that makes solder hard to stick to it.

Any suggestions to my problem? Thanks. ☺☺☺
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Old 15th August 2012, 12:58 AM   #2
tvrgeek is offline tvrgeek  United States
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Are you sure the wire is not aluminum?
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Old 15th August 2012, 02:00 AM   #3
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It's copper underneath if I try very hard scraping it off. The "tin" is colored metallic blue for left channel and metallic red for right.
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Old 16th August 2012, 02:26 PM   #4
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Sounds like it's enamelled copper, only way to remove it is by scraping it off.
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Old 16th August 2012, 10:06 PM   #5
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On most enameled wire it is removed by using solder. The heat causes the insulation to burn or melt off. Get a blob of molten solder on your iron and hold the end of the wire in the molten blob. After several seconds the insulation will be gone and the wire tinned.

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Old 16th August 2012, 10:24 PM   #6
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If it is copper wire with a kind of "shine-through" lacquer on it that would be enameled wire. In other words: wire with a thin but very sturdy lacquer. BTW it is a surprise every time to see native english speakers express so non precise. Please rephrase it to make things really clear.

If it is enameled wire :scrape the enamel off all around the wire and pre-tin the wire,then solder it to the connector. Simplest way would be scraping it off with a knife as the material is hard but brittle. It will not disappear easily with solder. You will have to have a clean copper surface for good soldering and a good connection.

A tin ?!
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Last edited by jean-paul; 16th August 2012 at 10:32 PM.
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