wrote in message . ..

No, but there IS guy whose family owns a silica mine...hydrophobic
(often treated with silicone oil - like copier oil) fumed silica should
have the properties of FF. The untreated variety should not as it is
hydrophilic. I can't remember where I heard it, but I do remember
hearing that FF is the treated stuff as is used in certain toner
formulations. FWIW, "Cab-O-Sil" isn't a specific product, it is a line
name, with various formulations in the line.

I am wondering if cab-o-sil is the same as "colloidal silica". The
reason I mention it is because you used to be able to get a sampler
pack from West System epoxy that included "colloidal silica" as a
filler. IIRC, you simply paid shipping costs for the pack. (Or
shipping costs plus a nominal fee.) I don't know if they still offer
that or not.

Anyhow, if this stuff is the same, I'd guess that you could order
some from them for a decent price.


Chuck Vance (who'll have to dig around in his shop to see where
he put that sampler pack)