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Glue or varnish for air coil windings?

Discussion in 'Electronic Basics' started by Wim, Nov 13, 2004.

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  1. Wim

    Wim Guest

    I want to glue or varnish the windings of an air coil. The coil is
    made of coated (polyurethan) copper wire.
    Which is the best glue or varnish?
  2. Steve Evans

    Steve Evans Guest

    Are you using a former or not? If not; the right type of glue (epoxy
    for example). If you're using a former, otoh, get some of that heat
    shrink plastic tubing; it's hard to beat. (shrink over any suitable
    heat source/no tools required)
  3. How hot will it get (how much current will it carry)?

    What environment will it operate in?

    For fairly hostile combinations of the above conditions,
    Tesla coilers use multiple coats of polyurethane varnish;
    the kind used on furniture.

    Mark L. Frgerson
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