[time-nuts] OXCO insulation

paul swed paulswedb at gmail.com
Tue Feb 24 00:35:52 UTC 2015


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 <andybardagjy at 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) <
> drkirkby at kirkbymicrowave.co.uk> wrote:
> >
> >> On 22 Feb 2015 22:07, "Dave M" <dgminala at 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.
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