[Stoves] Crispin and His Refractories

[Jeff Davis]

Dear Crispin & All,

We have a mutual interest, that being refractories that are good thermo
insulators.

I was wondering if you have ever employed the use of “microballoons” in
your refectories? And if so how they performed. 





Best regards,



Jeff

P.S. I have used microballoons for the construction of radio controlled
model airoplanes. They are also used in other constructions.

Ref.:
http://www.eagerplastics.com/7962.htm
http://en.wikipedia.org/wiki/Glass_microsphere



-- 
Jeff Davis

Some where 20 miles south of Lake Erie, USA