[Clayart] Red-orange glaze has escaped at cone six oxidation .

[William Schran]

I have mixed iron red glazes for years and find a couple things that
have affected my results.
1st - Application thickness - I have found with all the various
recipes I've tested the glaze must be applied rather thickly. Not
thick enough always results in brown colors.
2nd - I've also found controlled cooling also affects glaze results. I
found this out by refiring a iron red glaze that was brown in a cone
04 bisque firing - it came out much redder.
Read more from Tony Hansen's site: Digitalfire.com and enter search
for iron red glaze.https://digitalfire.com/glossary/iron+red+glaze

Bill

William Schranwschran at twc.com703-505-1617

	-----------------------------------------From: "Roxanne Hunnicutt via
Clayart" 
To: "Clayart automatic digest system"
Cc: "Roxanne Hunnicutt"
Sent: Thursday October 24 2024 5:48:12PM
Subject: [Clayart] Red-orange glaze has escaped at cone six oxidation
.

 You’ve heard this from me before. I love my red that has some
connection
 to Stephen hill. Maybe .

 Our best glaze, red orange is now ugly brown with no red. Old buckets
 don’t work any longer. New mixes don’t produce red.

 It seems to be about the lack of natural red iron oxide or natural
red iron
 oxide. The synthetic crocus Martis is not effective for me any longer
.
 That is sold by u s pigment. They don’t have any that is not
synthetic.

 Do any of you know of a trove of natural red iron oxide or crocus? Or
a
 couple of cups?

 So so disappointing to lose this glaze!

 Rox. (Any help? I used Texan talc. Would that matter? I used bone ash
for
 gardening. Would that matter?)

 Red Orange

 Cone six oxidation

 f-4. 36.7
 Silica. 12.6
 Kaolin. 12.9
 Talc. 13.8
 Bone ash. 12.1
 Frit 3124. 7.5
 Lithium carb. 4.2
 ————————
 Red orange ox. Synthetic 12.5
 Bentonite 2
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