John Baymore on thu 29 oct 98
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(snip)
At my grad school we have this really nice yellowish crackle raku glaze.
(clip)
Naples Raku
Frit 14...............720
EPK...................80
ERS...................8
Naples stain..........64
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Cookie,
Havent a clue what ERS is. Sorry.
Haven't got my frit reference near the computer either, so don't know the
frit. (Check it out for lead content before you use it just in case).
However one thought on that nice yellow formula that I DO have: ....... if
that Naples Stain is Naples Yellow Stain.... you need to check if it is
TRUE Naples Yellow or just carries that name to indicate that it LOOKS like
the original Naples Yellow.
Actual Naples Yellow is Lead Antimonate..... a particularly toxic material.
VERY TOXIC. Look it up in one of the ceramic toxicology references or
=22Hazardous Properties of Industrial Materials=22. I don't think you want =
to
be using that stuff =3Cg=3E.
Just my two cents worth.
Best,
....................john
John Baymore
River Bend Pottery
22 Riverbend Way
Wilton, NH 03086 USA
603-654-2752
JBaymore=40Compuserve.com.
June Perry on thu 29 oct 98
Maybe the ERS was GERS, an abbreviation for Gerstley Borate???
Regards,
June
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