I agree with Andy's comment and here is why. It may not be perfect but is readily available and stable at the temperatures we operate at. Most of the stuff I have run into even in HP seems to deteriorate over time. Granted none of it was intended for 20 plus years. I sure have cleaned out some ugly gunky sticky stuff. The last was a HP 3801 oven. Regards Paul WB8TSL
On Mon, Feb 23, 2015 at 5:48 PM, Andy Bardagjy <andybarda...@gmail.com> wrote: > Fiberglass seems like an obvious choice for high temperature insulation. > > Andy ◉ Bardagjy.com ◉ +1-404-964-1641 > > > On Feb 23, 2015, at 12:51 AM, Dr. David Kirkby (Kirkby Microwave Ltd) < > drkir...@kirkbymicrowave.co.uk> wrote: > > > >> On 22 Feb 2015 22:07, "Dave M" <dgmin...@mediacombb.net> wrote: > >> > >> Yes, I'm aware that the newer OXCOs don't have any insulation other than > > air inside the package. I failed to mention that in my post. I am > > primarily interested in the older OXCOs that have foam insulation inside. > > I have a couple of them, including the crystal oven from an old HP 5245L > > counter that needs new insulation. > > > > I don't know what is used, but clearly whatever is used *must* be stable > > under heat for *long* periods of time. > > > > Domestic gas / oil / coal boilers must use insulation, and whatever is > > used would I assume be able to take heat for extended periods of time. I > > wonder if you could get something like that. > > > > The trouble I see with other chemicals (spray foam etc), is you have no > > idea if it will sustain heat for long periods of time. > > > > Dave. > > _______________________________________________ > > time-nuts mailing list -- time-nuts@febo.com > > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > > and follow the instructions there. > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.