Alisa Clausen on tue 29 apr 03
Glaze test for CT Red, cone 6, ox.
Glaze tested on white midrange stoneware fired in electric oxidation to =
1220c.
Source: Clayart
Credited to:
Firing ramp:
100c p/h to 600c (212f - 1112f)
150c p/h to 1100c (330f - 2012f)=20
100c p/h to 1220c (212f - 2228f)
5 min. soak
cool down 80c per hour to 800c
shut off kiln
Recipe:
8.08 EPK
32.32 Flint
21.21 G.B.
17.17 Neph. Sye.
1.01 Talc
20.02 Whiting
ADD
0.15 Chrome=20
5.05 Tin Ox.
Note: All raw materials are measured up or down to the nearest whole =
decimal. =20
Colorants or additives to a 100 gram test batch are measured in percent =
to the 100 gram test batch.
Substitutions:
Frit 623 for G.B.
Results:
Gloss green glaze with dark red undertones. Lighter, covering green =
where thickest. I suspect my Chrome was too high, due to my new and bad =
scale. However, the glaze is smooth and a green I would hope to achieve =
again.
Regards from Alisa in Denmark
=20
Ron Hollister on wed 30 apr 03
Alisa,
This is the same CT Red that I've used for the past year or so with very
good results and requests for the formula. Following is a page on my web
site with pieces done in this glaze. I would also be very interested in the
green your getting, any guess as to the amount of chrome you used?
Ron Hollister
Fort Worth, Texas
http://www.ronhollisterpottery.com/Chrome_Tin_Red
----- Original Message -----
From: "Alisa Clausen"
To:
Sent: Tuesday, April 29, 2003 6:51 AM
Subject: Glaze test for CT Rd, cone 6, ox.
Glaze test for CT Red, cone 6, ox.
Glaze tested on white midrange stoneware fired in electric oxidation to
1220c.
Source: Clayart
Credited to:
Firing ramp:
100c p/h to 600c (212f - 1112f)
150c p/h to 1100c (330f - 2012f)
100c p/h to 1220c (212f - 2228f)
5 min. soak
cool down 80c per hour to 800c
shut off kiln
Recipe:
8.08 EPK
32.32 Flint
21.21 G.B.
17.17 Neph. Sye.
1.01 Talc
20.02 Whiting
ADD
0.15 Chrome
5.05 Tin Ox.
Note: All raw materials are measured up or down to the nearest whole
decimal.
Colorants or additives to a 100 gram test batch are measured in percent to
the 100 gram test batch.
Substitutions:
Frit 623 for G.B.
Results:
Gloss green glaze with dark red undertones. Lighter, covering green where
thickest. I suspect my Chrome was too high, due to my new and bad scale.
However, the glaze is smooth and a green I would hope to achieve again.
Regards from Alisa in Denmark
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