Re: Casting Garolite or other insulators.

"NuclearFirestorm@xxxxxxx" wrote:
>
> Looking at a few castable ceramics, I see they are about 20 times
> mechanically weaker than G-11. I didn't know such a thing as this
> existed until now. I imagine they are brittle so they wouldn't work
> for my little Rail Gun.
>
> How about flexible castable insulators? The Rail Gun has an outer
> steel case so a weak insulator would work as long as the insulator
> doesn't tear under stress, it were flexible enough to stretch a few
> mils under the shock of firing that would work too. In this case ultra
> high molecular weight polyethlyene would be okay. I again have know
> idea how that is cast, or made. Any help is most appreciated.

How 'bout hobbyist polyester resin w or w/o fiberglas reinforcement w
or w/o inorganic fillers (e.g., alumina, wollastonite, fine sand)?
Two-component inorganic-filled epoxies or polyurethanes (to lessen
shrinkage and exotherm on cure). Epoxy putty, plaster of Paris, Perma
Stone,

http://www.activaproducts.com/

--
Uncle Al
http://www.mazepath.com/uncleal/
(Toxic URL! Unsafe for children and most mammals)
http://www.mazepath.com/uncleal/qz.pdf
.