[time-nuts] Thermal insulation choice?

[Joe Gwinn]

At 10:15 PM +0000 1/6/12, time-nuts-request at febo.com wrote:
>Date: Fri, 06 Jan 2012 14:41:13 -0600
>From: David <davidwhess at gmail.com>
>To: Discussion of precise time and frequency measurement
>	<time-nuts at febo.com>
>Subject: Re: [time-nuts] Thermal insulation choice?
>Message-ID: <lrmeg7118lvondacu922olu8spb57je2gq at 4ax.com>
>Content-Type: text/plain; charset=us-ascii
>
>I completely forgot about those two.  [Balsa wood and foam-in=place 
>urethane foam]
>
>I have a good local hobby shop
>with large pieces of balsa wood but I suspect it would be more
>expensive than good quality expanded polystyrene bead sheet.  I will
>have to check out foam board next time.  Both would be more difficult
>to cut without a hot wire knife.

Balsa wood cuts very easily with a sharp knife, glues very well with 
carpenters' glue, and will not degrade over time.

Joe Gwinn