Dan, found this on the putty: http://www.cotronics.com/catalog/51 7020 901.pdf
"Provides excellent resistance to oxidizing and reducing atmoshperes, molten non-ferous metals, steam, most chemicals and solvents."
Seems pretty resistant. It did state it contained "ceramic fibers and aluminum oxide". The fibers would be bound and shouldn't present a problem.
It'd be nice to heat and soak some, cured in PG/VG for a few hrs at 400*, then ran up higher and have the liquid tested for aluminum.
Some flavorings contain esters, aldehydes and such. Be impossible to test for everything, but they are present in small amounts.
Another possibility would be to coat it with a known safe , non-toxic, heat resistant paint, glaze....
Edit: Looking better.....from Wiki http://en.wikipedia.org/wiki/Aluminium_oxide
As a filler:
Being fairly chemically inert, relatively non-toxic, and white, alumina is a favored filler for plastics.
"Provides excellent resistance to oxidizing and reducing atmoshperes, molten non-ferous metals, steam, most chemicals and solvents."
Seems pretty resistant. It did state it contained "ceramic fibers and aluminum oxide". The fibers would be bound and shouldn't present a problem.
It'd be nice to heat and soak some, cured in PG/VG for a few hrs at 400*, then ran up higher and have the liquid tested for aluminum.
Some flavorings contain esters, aldehydes and such. Be impossible to test for everything, but they are present in small amounts.
Another possibility would be to coat it with a known safe , non-toxic, heat resistant paint, glaze....
Edit: Looking better.....from Wiki http://en.wikipedia.org/wiki/Aluminium_oxide
As a filler:
Being fairly chemically inert, relatively non-toxic, and white, alumina is a favored filler for plastics.
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