Saturday 28 February 2009

In search of pink raspberry glaze

I am a total novice when it comes to glazes. I use what is in a studio, but tend to go for whites most often. This time however, I am in desperate need for pink. I want it to be nice and warm, kind of raspberry or raspberry and cream.

Of course there is no pink glaze in a studio. None, there is no nice red either for that matter. I am saying of course, because I noticed lately, that with me and my projects somehow things never go nice and easy.

Anyway, so I am on a mission to find pink glaze and so far I have found:


Pink Glaze Base #4
==================
WHITING............. 37.70 18.85%
FERRO FRIT 3134..... 55.80 27.90%
KAOLIN.............. 35.50 17.75%
SILICA.............. 50.70 25.35%
CORNWALL STONE...... 20.30 10.15%
========
200.00

CaO 0.84* 18.29%
MgO 0.00* 0.02%
K2O 0.01* 0.49%
Na2O 0.15* 3.63%
Fe2O3 0.00* 0.03%
TiO2 0.00 0.01%
B2O3 0.26 7.18%
Al2O3 0.24 9.70%
SiO2 2.59 60.65%

Cost/kg 0.81
Si:Al 10.61
SiB:Al 11.69
Expan 7.23
source


35 Nepheline Syenite
15 Whiting
9 Ferro Frit 3134
10 Kentucky OM#4 Ball Clay
19 Silica
10 Tin Oxide
2 Bentonite
Total 100

ADD: Chrome oxide 0.15%
source


A: Jeannie Purple
B: Clay Times Jan/Feb. 05, based on John Hesselberth
and Ron Roy Tin/Chrome Raspberry
B: similar oxides to Rosenrot Red 1, Rosenrot Red 4,
Chrome Tin Base Raspberry Blue, Chrome Tin Base
Raspberry
B: similar oxides to Chrome Tin Base and Goodrich
Cranberry
C: 6
D: cool maximum rate to 800C hold 1 hour
E: 30 silica
E: 20 calcium carbonate
E: 18 nepheline syenite
E: 18 ball clay,OM-4
E: 14 frit,Ferro 3134
E: 3.75 tin dioxide
E: 0.60 cobalt carbonate
E: 0.20 chrome oxide
F: gloss
H: Alisa Clausen: gloss dark blue purple
source


A: Lewing Raspberry
B: Paul Lewing
C: 6
E: 27 feldspar,Custer
E: 9 kaolin,EPK
E: 21 calcium carbonate
E: 18 silica
E: 9 frit,Ferro 3134
E: 8 talc
E: 8 borate,Gerstley
F: gloss
H: Alisa Clausen: Clear, stable, shiny gloss. No
noticeable differences where double dipped. Some
crystals where especially thick under rim. Nice.
Same recipe tested with 8 Colemanite for
Gerstley Borate, no discernable difference, except
colemanite version had a very small bluish pool
in test bowl center. I think this sub. works.
source


A: Chrome Tin Base Raspberry
B: Clay Times Jan/Feb. 2005
B: similar oxides to Goodrich Cranberry, Jeannie
Purple, Rosenrot Red 4 and Rosenrot Red 1
C: 6
E: 100 Chrome Tin Base
E: 7.5 tin dioxide
E: 0.6 cobalt carbonate
E: 0.2 chrome oxide
F: gloss
source


A: Chrome Tin Base Raspberry Blue
B: similar oxides to Jeannie Purple
C: 6
E: 100 Chrome Tin Base
E: 1 cobalt carbonate
E: 0.25 iron oxide,red
F: gloss
H: Alisa Clausen: gloss blue with many variations
on a smooth lush covering with streaking and
movement. Thickened at bottom edge
but did not run.
source

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