question regarding header & tuned pipe

[Bill Glaze]

Gray:
Curiosity:  Morton Thiokol supplies not just the rocket propellant,
(which, we were told many years ago was a derivative of liquid rubber)
but they also supply the rocket casings?  Interesting.

Bill Glaze

Gray E Fowler wrote:

>
> Tom-had to resend without all the attachments
>
> Morton Thiokol does not make resin, BUT you are on to
> something......Morton Thiokol, now called ATK ,filament winds rocket
> motor casings, and that Shell 8500 is a favorite of filament winder
> guys. Epoxies typically have extremely long shelf lifes. Some
> preformulated epoxies do have consituents that may increase the
> viscosity with age, if not refridgerated. As far as cost goes it is
> all relative. There are expensive epoxies at about $15 lb.  Regular
> epoxy (bisphenol A) is $3 lb when purchased in a 55 gallon drum and
> about twice that by the gallon. High temperature resistance usually
> comes from th echoice of hardener not the epoxy resin.  Epoxy resins
> that can increase temperature (multifunctional) resistance are solids
> at room temperature-not too pattern guy user friendly. Preformulated
> epoxy systems cost 5X-10X the raw material-usually from the hardener
> side. Example-West systems epoxy is a "formulated" hardener , ! that
> is a blend of several components and the epoxy side is packaged
> straight from the drum.
>
>
>
>
>
> Gray Fowler
> Principal Chemical Engineer
> Composites Engineering
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