R. Ravenal on sun 22 dec 02
I'm looking for two specific recipes for low-fire maiolica glazes. Does
anyone have Linda Arbuckle's and Stan Anderson's glaze recipes? Thanks.
Nanci Bishof on mon 23 dec 02
This is off Linda's handout from her workshop.
Linda Arbuckle's Majolica Glaze
^03 in sitter to give a small ^04 tipped to ~2 o'clock in front of the peep
hole.
Frit 3124 (Ferro) 65.75%
Kona F-4 Feldspar 17.24%
Nepheline Syenite 6.24%
EPK 10.82%
ADD:
Tin Oxide 5%
Zircopax 10%
Bentonite 2%
*1/2-3Tbs. Epsom Salts/5 gal. bucket to flocculate glaze if necessary
Use of chrome in decoration may cause sufficient fuming to make th4e
background blush pink in high tin glazes (above 5%). If this is a problem,
drop the tin a bit and add that amount x 1.5 of additional zirconium
opacifier.
Colorants are then mixed with ~1 cup of the strained Gerstley
Borate to 1 Tbsp of stain or colorant. Gerstley is used to aid suspension and
flux the colorant. Liquid laundry starch (Sta-Flo) or glycerin may be used to
aid suspension and brushability. Colorants that melt well at low-fire temps
are mixed 1 part color: 1 part gerstley borate (e.g. cobalt, copper, iron).
More refractory oxides and most glaze stains are mixed 1 part colorant + 3-4
parts gerstley borate. Stains that are very refractory & primarily used as
body stains (to color clays or slip) will give a rough, pig-skinned surface,
even when mixed 1:4 (e.g. MasonStain 6020 pink).
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