[time-nuts] Thermal insulation choice?

[George Dubovsky]

There is a closed-cell foam,  aluminum foil clad on one or both sides that
is used as HVAC ductwork - they score it with a knife, and fold it to size
- that should withstand the temperatures you are contemplating, for a long
time. I have seen some approximately 1/2 to 5/8 inch, and the quantities
you need should be available free from your local HVAC shop.

73,

geo - n4ua

On Fri, Jan 6, 2012 at 2:39 PM, John Ackermann N8UR <jra at febo.com> wrote:

> I am looking for a readily available (from Home Depot or other local
> source) insulating material to use in a chassis that's housing a sensitive
> OCXO.  My goal is just to slow down any external thermal transients so the
> oven loop has time to react gracefully.
>
> I'm thinking of something in sheet form that I could glue to the inside
> bottom and side of the metal chassis.  The trimmed sheet sizes will each
> probably end up being around 4 x 8 inches.  I have enough clearance for a
> thickness of a half inch or so.  I'd like to avoid a bat material as that
> would be hard to mount neatly.
>
> Long lifetime (ie, not getting all crumbly after a few years) is important
> as I don't expect this oscillator to get cold until I do.
>
> Any suggestions of a material to look for?
>
> Thanks,
>
> John
>
> ______________________________**_________________
> time-nuts mailing list -- time-nuts at febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/**
> mailman/listinfo/time-nuts<https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts>
> and follow the instructions there.
>