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Nichrome winding insulation question

I have two old soldering stations with burned out elements I want to rewind. ( One is an old ungar they quit making ages ago but it was a good iron ) I found some #30 Nikrothal 80-20 wire cheap on eBay which appears to be the same length and resistance as the original. I just want to know what kind of paint or insulating material to use to keep the wire from shorting to the metal barrel or to neighboring turns ( They are both 24 volt transformer units ). I took one elemant apart already and the coil is sandwiched between to metal tubes about .02" apart.

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WKW
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I am sure that you will receive replies from folks considerably more familiar with heater construction than myself, but FWIW, please see how I worked with soldering iron heaters to build an SMT hot air rework tool at:

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I found that windings separated by ceramic spacers was typical in units that I disassembled and I used refractory cement in my finished unit to provide structural strength and thermal conductivity and thermal insulation in appropriate places.

Michael

Reply to
msg

I forgot to mention that the internal insulation in all of the heaters I cannibalized was mica -- in discs, sheets, bars, etc. Ceramics made up the rest of the structural material. When inserted into the metal tube, the spacers prevented any contact with heater wire.

Michael

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msg

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