From: Sean Breheny <shb7@cornell.edu>
To: Microcontroller discussion list - Public. <piclist@mit.edu>
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Date: Tue, 21 Apr 2020 00:16:01 -0700
Subject: Re: [EE] Winding an electric heating element,	insulator/coil form
 material?
Thread-Topic: [EE] Winding an electric heating element,	insulator/coil form
 material?
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Ceramic (such as alumina) or porcelain is good BUT bear in mind that some
formulations can absorb water from the air and then crack if the
temperature is raised too quickly. Also, alumina is moderately thermally
conductive (it is actually slightly electrically conductive at high
temperature, too, but I'm talking in the neighborhood of 100s of kilohms).



On Mon, Apr 20, 2020 at 12:57 PM Dave Lagzdin <dtekk.com@gmail.com> wrote:

> Mcmaster have (or had at least) threaded stand offs in ceramic - which ma=
y
> be useful.
> D
>
>
> On Sat, 18 Apr 2020 at 08:47, Jason White <
> whitewaterssoftwareinfo@gmail.com>
> wrote:
>
> > ..
> >
> > What materials are typically used to thermally and electrically
> > insulate heating coils. Where can I get it? Are some insulating
> > materials easier to work with? I will likely be making custom coil
> > forms/insulators/spacers/etc
> >
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