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E2E Engineer Discussion Forum » Heating » General Discussion » Re: Kapton Thermal Characteristics

Kapton Thermal Characteristics

Last post 03-20-2009, 10:24 AM by Vitreous Humor. 4 replies.
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  •  04-20-2005, 3:40 PM 140

    Kapton Thermal Characteristics

    What is the thermal conductivity of Kapton?  I am trying to do some thermal calculations, help!
    More cowbell!

  •  04-21-2005, 10:25 AM 143 in reply to 140

    • PRF is not online. Last active: 06-12-2008, 3:23 PM PRF
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    • Joined on 04-04-2005
    • Lake Minnetonka, MN
    • Posts 53

    Re: Kapton Thermal Characteristics

    The short answer is 0.12 W/m-°K which converts to .833 BTU-in/(ft^2-hr-°F).  This is the manufacturers value.

    I would also point out that there are some good tools on this website under "Engineering Tools", including Thermal Calc, which is a wattage estimating calculator.


    "A witty saying proves nothing."
    -Voltaire

  •  12-18-2006, 9:35 PM 405 in reply to 143

    Re: Kapton Thermal Characteristics

    I thought most plastics are about 0.01W/cm-K, which would point to kapton~1.2W/m-K. Is it possible somebody slipped a decimal point? 0.001W/cm-K is close to the thermal conductivity of still air, if I remember right.

  •  03-19-2009, 1:51 PM 1683 in reply to 140

    Re: Kapton Thermal Characteristics

    All the answers you need for Katon:

    http://www2.dupont.com/Kapton/en_US/assets/downloads/pdf/summaryofprop.pdf

  •  03-20-2009, 10:24 AM 1685 in reply to 1683

    Re: Kapton Thermal Characteristics

    The manufacturer specs for Kapton are good information, but you should be aware that Kapton is not a heater. It is just one material in the stack that makes up a heater. You really need to have the thermal properties of the stack as well as knowledge of the element coverage to calculate thermal transfer.
    Vitreous Humor
    "Eye can see clearly now..."
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