Teflon coated wire vs Silicon coated wire

Discussion in 'Instruments / Avionics / Electrical System' started by MadRocketScientist, Feb 11, 2019.

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  1. Feb 11, 2019 #1

    MadRocketScientist

    MadRocketScientist

    MadRocketScientist

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    Does anyone have any comments on the pros and cons of using silicon coated wire rather than Teflon coated wire?

    Thanks in advance...

    Shannon
     
  2. Feb 11, 2019 #2

    Aerowerx

    Aerowerx

    Aerowerx

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    Just guessing from general knowledge but...

    Silicone insulated wire is usually used as ignition wiring due to its higher heat resistance. It is also more flexible than Teflon.

    I also just read that silicone insulation will burn if held in a flame, and continue burning. Teflon will melt and burn if held in a flame, but will stop burning when the flame is removed. That is why it is used for plenum rated cabling in building construction. IIRC, Teflon is more abrasion resistant.

    If you are concerned about a possible electrical fire, I would go with the Teflon insulated wire.
     
  3. Feb 11, 2019 #3

    Himat

    Himat

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    Other than when you have looked at it a bit more close, selection of wire insulation is no easy task?

    Insulation break down voltage/thickness differ too. Teflon and other insulators in the same group are usually thinner for a given break down voltage than silicon.
     

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