Lesley Alexander on tue 7 may 02
Fav Glazes ^10 Red. Joyce asked about white or cream glazes.. I tried
several, including Vivika Heino’s matt and Conrad’s matt…. The first two
were my favorites from the series. The last is a new one I'll be using
(with variations) a lot for food-safe ware and other things.... Don't
remember where I got the basics on it.
***Sycamore White
(This has been on Clayart before; A beautiful white white:)
================
EPK KAOLIN.......... 12.55 10.00%
SILICA.............. 19.07 15.20%
CUSTER FELDSPAR..... 50.19 40.00%
WHITING............. 18.19 14.50%
ZIRCOPAX............ 25.47 20.30%
========
125.47
***Strontium Chun White
(Adapted from a barium glaze used in Santa Barbara Adult Ed. This is
creamier looking)
CUSTER FELDSPAR..... 48.80 43.19%
EPK KAOLIN.......... 1.50 1.33%
DOLOMITE............ 9.10 8.05%
EPK KAOLIN.......... 9.10 8.05%
WHITING............. 2.70 2.39%
STRONTIUM CARBONATE. 4.60 4.07%
ZINC OXIDE.......... 1.80 1.59%
SILICA.............. 27.40 24.25%
ZIRCOPAX............ 6.00 5.31%
BENTONITE........... 2.00 1.77%
========
113.00
*** A new favorite for me which could be tried in white:
DOLOMITE............ 7.00
EPK KAOLIN.......... 6.00
SILICA.............. 20.00
G-200 FELDSPAR 41.00
Gerstley Borate..... 12.00
TALC................ 14.00
========
100.00
Haven’t tried this as a plain white glaze yet; would add zircopax or
tin, 6-7%. I’ve tried it with colors (.3 cobalt carb, .9875% chrome,
.75% yellow iron oxide). This gave a rich green which tested below .02
mg for both cobalt and chrome and I am very comfortable selling that as
a safe glaze. It feels good too, especially since I’ve been trying that
wonderful one hour pause at 1000° on the cooling cycle!
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