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we are developing a product and would like to use silicone, as it has good texture and durability, however it is an insulator. We would like heat to be able to pass through the silicone rapidly. Does anyone know of any alternatives to silicone that can conduct heat and is widely available?

Thanks

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    $\begingroup$ What other requirements would this material have to meet and what would the material have to do other than function as a conductor (adhesive, fastener, sealant, etc.)? $\endgroup$
    – J. Ari
    Commented Dec 18, 2019 at 16:56
  • $\begingroup$ Does it have to be clear? $\endgroup$
    – Eric S
    Commented Dec 18, 2019 at 21:03
  • $\begingroup$ @J.Ari should be flexible so it can be wrapped around an object $\endgroup$
    – Hin Lai
    Commented Dec 20, 2019 at 23:19
  • $\begingroup$ @EricShain nope! Some color would be nice $\endgroup$
    – Hin Lai
    Commented Dec 20, 2019 at 23:19
  • $\begingroup$ If you do a google search on "thermally conductive silicone" there are a lot of hits. $\endgroup$
    – Eric S
    Commented Dec 20, 2019 at 23:28

2 Answers 2

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The easy answer is to load the silicone with silver, copper, or aluminum oxide dust to a high volume percentage. This will furnish conduction paths for heat- however, it also renders the cured silicone less flexible and tear-resistant.

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  • $\begingroup$ Do you know of any existing suppliers that can do this at the moment? Appreciate the help! $\endgroup$
    – Hin Lai
    Commented Dec 20, 2019 at 23:20
  • $\begingroup$ no but it's easy to mix your own! $\endgroup$
    – niels nielsen
    Commented Dec 21, 2019 at 1:26
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Toyochem has a product called LIOELM™ FTS series — Thermal Conductive Adhesive Sheets.

They claim it is flexible but has high thermal conductivity (maximum 10W/m･K).

https://www.toyo-chem.com/en/products/electronics/lioelm_fts.html

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  • $\begingroup$ interesting product. It seems to be quite thin adhesive sheets and perhaps not what the OP is looking for. $\endgroup$
    – Eric S
    Commented Dec 20, 2019 at 23:26

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