Alisa and Claus Clausen on thu 20 jul 00
Receipe
Tested on light grey, mid range stoneware.
=20
Gerstley Borate 46,08 %
EPK 22,55
Silica 29,41
Soda Ash 1,96
=20
ADD=20
Red Iron Oxide 9,80
=20
Adustments
everything was measured up to the next highest precent.
=20
Result was a dark brown, reddish iron nuance. Needs to be applied =
evenly, dipped gave even results.
Shiny, smooth, not too exciting by itself.
But, under Cream Gloss, gave whitish to very blue opalescence with a =
honey ground,
similar to combination of Plum and Cream Gloss. =20
=20
Best regards,
Alisa in Denmark
Gregory D Lamont on fri 21 jul 00
At 10:04 PM 7/20/00 +0200, you wrote:
>Receipe
>Tested on light grey, mid range stoneware.
>=20
>Gerstley Borate 46,08 %
>EPK 22,55
>Silica 29,41
>Soda Ash 1,96
>=20
>ADD=20
>Red Iron Oxide 9,80
>=20
>Adustments
>everything was measured up to the next highest precent.
>=20
>Result was a dark brown, reddish iron nuance. Needs to be applied =
>evenly, dipped gave even results.
>Shiny, smooth, not too exciting by itself.
>But, under Cream Gloss, gave whitish to very blue opalescence with a =
>honey ground,
>similar to combination of Plum and Cream Gloss. =20
>=20
>Best regards,
>Alisa in Denmark
>
>______________________________________________________________________________
Alisa,
If you want this glaze to go red, try re-firing it to cone 06, without
doing anything else to it. This technique, does wonders for bringing out
the red in iron saturate glazes.
Unfortunately, it can also bring out the blisters, which I am working on to
eliminate by adjusting the temperature of the second firing. See previous
posts in the archives for more on iron red glazes--there's a lot
there. Also, theres an article in the Summer 2000 issue of Pottery Making
Illustrated on twice fired glazes Lili Krakowski.
Greg
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