Andie Carpenter on fri 26 jan 01
I am re-sending this because it appears to not have gone through the
first time.
: ) Andie
> First, I want to thank Alisa in Denmark for sending through her
> tireless glaze results, as I never would have gotten motivated to get
> off my butt & start testing some non-Gerstley glazes without her
> inspiration.
>
> Following are my most recent tests, some of which Alisa also tested,
> posted for posterity. If some of the info sounds familiar, it is
> because I am foolishly optimistic, and re-tested some of my biggest
> disasters to make sure that they were, in fact, disasters. I should
> probably call a therapist about that. All the below were fired to a
> hard cone 6, on Standard Ceramic Brown Firing Clay 208 unless
> otherwise specified.
>
> DISCLAIMER: I do not claim these have been tested food safe. I do not
> promise you will have the same results. I do not promise your kiln
> shelves will not be ruined. I do not promise that you will remember to
> turn off your kiln & not start a fire. I do not promise that the below
> information will fulfill your life in any way, though it may try.
>
> : ) Andie Carpenter
> www.andie.net
> andie@princessco.com
>
> RON ROYS REVISED, ANDIE TWEAKED SAPPHIRE
> Frit #3134 37
> Feldspar 16
> Strontium Carb 4
> Rutile 4.5
> Cobalt Carb 2.5
> China Clay 16
> Kaolin, Generic 10
> Silica Flint 17
> Bentonite 2
> RESULTS: After months of playing with this to get it perfect, I've had
> three batches go through with this exact recipe and it's yummy every
> time. A little green here, a little white there, and shiny cobalt blue
> all over. It will run, but for some reason the China Clay seems to
> have even made this more manageable. Perfect. No bumpy weird gunk, no
> naked spots, no all-green-where's-the-cobalt?, no globs all over the
> shelves. Oh yeah, and no Gerstley. Yea!! ENJOY!!!
>
> EBONY
> Bernard Slip or Blackbird 50
> Frit #3124 50
> RESULTS: If this glaze were a play, it would win a Tony. It sings, it
> dances, it keeps you interested into the third act. On stoneware, it's
> rich, deep shiny brown, on Grolleg it's a shiny black breaking red
> like a reduction fired tenmoku, on the evil dark brown 266 it shines &
> all but glows with something stunning going on under the surface. And
> only two ingredients. And no Gerstley. Please, Alisa, I'll promise you
> my firstborn anything if you send me more recipes like this. Let's all
> sing along...heaven, I'm in heaven...
>
> GOLDEN FAKE ASH
> Red Art 27.1
> Bentonite 1
> Ball Clay 20.4
> Bone Ash 5.1
> Strontium Carb 9.15
> Dolomite 23.8
> Gerstley Borate (yes, but only a little) 9.6
> Lithium Carb 1.7
> RESULTS: sometimes it's orange, sometimes it's yellow, in the past it
> has occasionally been fickle depending on where it is in the kiln, but
> the real test this load was this glaze on the aforementioned evil 266.
> It's unbelievable. Dark brown matte (with not a pinhole, a perfect
> fit, so lovely), breaking yellow, just stunning. Makes me want to
> overlook the bloating & cracking this bad, bad clay is prone to.
>
> AQUA BRONZE
> Strontium Carb 50
> Bentonite 3
> Nepheline Syenite 50
> Gerstley Borate 3.5
> Copper Carb 4
> RESULTS: I tried it again. I now realize I have never actually seen
> aqua and bronze used together as a color combination, and after the
> second disastrous load, perhaps I know why. Identical results to last
> time - it didn't melt all the way, and where it did, it's the color of
> dog puke. Why do I keep doing this to myself? Because people wrote
> last time saying it turns out lovely for them. That it fills them with
> joy, and they use it every day. Which may be the case. But my kiln has
> asked me to, in the future, just say no.
>
> CLAYART OXIDATION IRON RED
> WAS: Gerstley Borate 55 NOW: 3134 55
> Silica Flint 31
> Red Iron Oxide 22
> Talc 15
> RESULTS: Not a big change without the Gerstley. A nice reddish brown,
> but nothing too exciting. Truth to tell, if it hadn't been in with the
> Ebony (above) and Litman's Red Brown (below), I would probably be
> really excited about this glaze, but in this load it's definitely the
> pretty glaze's best friend.
>
> GREEN & BLUE OIL SPOT
> Frit #3134 150
> Rutile 15
> EPK 120
> Silica Flint 60
> Cobalt Carb 9
> RESULTS: This looks like RR AT Sapphire, except darker. Not bad, but
> not something I'll pursue. Nice and similar on all three clays -
> surprised it wasn't really different on the evil 266 or on Grolleg,
> but hey.
>
> IE 27
> Dolomite 10
> Silica Flint 9
> Red Iron Oxide 2
> Zinc Oxide 6
> Copper Carb 1
> Nepheline Syenite 67
> Kaolin, Generic 8
> RESULTS: I want to love this. The first batch I mixed & tested on
> stoneware, and got a lemon grass colored crackle, which I really kind
> of liked, it was almost a reduction celedon look. The second batch I
> mixed & tested on Grolleg, and got an ugly light green matte. The
> third batch I mixed and went back to the stoneware...and got an ugly
> light green matte. Arrgghhh. Back to the drawing board. I'm not giving
> up on it, but wouldn't call it dependable.
>
> LITMAN RED BROWN
> Custer Feldspar 20
> Silica Flint 29
> Talc 14
> Frit #3134 32
> Red Iron Oxide 15
> EPK 5
> RESULTS: YUMMY!!! This is SOOOOO cool! I tested it on all three clays,
> and the results on the stoneware and Grolleg were very similar - a
> thick, reddish brown with an overlayer of cream dotted with blue and
> green where thickest. The evil 266 went crazy and bloated worse than
> ever on even the test tiles with this, so that's out, but this is a
> winner on the other two clays. Almost faux shino, with more depth. I
> have it on a full size piece now, let's hope it doesn't run too bad
> (sometimes hard to tell on my smaller test tiles & test pieces).
>
> CLAYART OPAL BLUE
> Copper Carb 2
> Frit #3134 20
> Cobalt Carb 0.5
> Tin Oxide 5
> Ball Clay 20
> Dolomite 20
> Silica Flint 20
> Spodumene 20
> &
> SOFT OPAL BLUE
> EPK 25
> Cobalt Oxide 2
> Silica Flint 25
> Frit #3134 50
> Rutile 4
> RESULTS: Well, they both look alot like RR AT Sapphire, and not really
> opalescent, even on Grolleg. The soft opal was a more light runny blue
> than the other, but I'm not particularly impressed with either one. I
> buy a pre-mix (gasp!) runny opalescent blue from Standard Ceramic, and
> neither of these even comes close. Now, if anybody hacks into the
> recipe for THAT fairly expensive pre-mix, do let me know.
>
> PERSIMMON (NON-GERSTLEY REVISION)
> WAS: Gerstley Borate 46.08 NOW: 3134 46.08
> Silica Flint 29.41
> Red Iron Oxide 9.8
> EPK 22.55
> Soda Ash 1.96
> RESULTS: HELP!! This is one of my all-time faves, but the test with
> 3134 was just a mistake. As in ugly, plain ol' brown, not even very
> glossy. Bad coverage. No happy color variations. No runny spots. No
> dancing of the light as it shines upon the honey-like surface.
> Nothing.
>
> TO DO WHITE
> Nepheline Syenite 50
> Dolomite 25
> Whiting 5
> Ball Clay 20
> RESULTS: Well, Alisa loved this, but I got a matte white with weird
> yellow specks in it that didn't melt well enough to give very good
> coverage. Not sure what to think. I suspect I'll try this again, and
> perhaps again after that. Unless someone else got weird yellow specks,
> in which case, please email and let me know so I don't waste my time
> trying to figure out where I went wrong (see Aqua Bronze, above).
>
> TYLER FAKE ASH
> Gerstley Borate 16
> Frit #3110 16
> Dolomite 20
> Red Art 48
> RESULTS: Well, it does look like a fired ash piece, if in fact by
> fired ash you mean it looks crappy and hideous as though it were
> sitting in a house that caught fire and burned down around it, leaving
> it covered with ugly, flaky, dandruffy ash. In fact, based on my
> results, 'Dandruff' would be a good name for this glaze. I don't know
> where I went wrong, but this couldn't be what anyone intended, so I
> must have done something wrong. (Should we start a pool on how long it
> takes for me to mix another batch and try again?)
>
> VAL CUSHING CRUSHED PEARLS
> Talc 9
> Whiting 16
> Silica Flint 16
> EPK 10
> Custer Feldspar 40
> Frit #3124 9
> RESULTS: I had VERY high hopes - every one of the few Val Cushing
> glazes that has ever fallen into my hands has been amazing, no matter
> what I do to it or how thick or thin or sloppily I apply it - so much
> so that I have begun to think that my kiln may have a little crush.
> This one, though...well, it's white. It looks alot like the To Do
> White (above), but without the yucky specks in it. Not a bad white,
> not bad coverage, but I didn't get anything that might inspire the
> poetry of 'Crushed Pearls'. Perhaps my kiln's heart was stolen by my
> new Bill Campbell mug that I was drinking from when I started the
> firing. Oh well.
>
> And now for my request:
> Below are my very favorite Gerstley-rich cone 6 glazes. If anybody
> out there (Roy? Reitz? Cullen? Hanson? Anybody, Anybody?) has come up
> with revised versions, I'd be really grateful of you'd share with me.
>
> GREEN CRACKLE
> Whiting 8.2
> Gerstley Borate 13.6
> Dolomite 6
> Silica Flint 19.8
> EPK 2.5
> Tin Oxide 1
> Rutile 0.5
> Zinc Oxide 3.7
> Copper Carb 1
> Nepheline Syenite 46.3
>
> BAHAMAS BLUE
> Silica Flint 200
> Kaolin, Generic 50
> Nepheline Syenite 470
> Cobalt Carb 15
> Red Iron Oxide 20
> Gerstley Borate 270
> Rutile 40
>
> BAY BLUE
> Cobalt Oxide 4
> Gerstley Borate 500
> Silica Flint 325
> Rutile 50
> Cobalt Carb 7
> Ball Clay 175
>
> FLOATING GREEN
> Red Iron Oxide 2
> Nepheline Syenite 47.3
> Cobalt Carb 1
> EPK 5.4
> Silica Flint 20.3
> Gerstley Borate 27
> Rutile 4
>
> LOIS A's SHINY GLOSSY HAPPY COBALT BLUE
> Gerstley Borate 500
> Cobalt Oxide 20
> Kaolin, Generic 150
> Silica Flint 350
>
> RED TENMOKU
> Gerstley Borate 3.6
> Lithium Carb 5
> Red Iron Oxide 10
> Whiting 10.6
> Cornwall Stone 80.9
>
> SSU RED EARTH
> Gerstley Borate 31
> Silica Flint 30
> Red Iron Oxide 15
> EPK 5
> Talc 14
> Soda Feldspar 20
>
> TESSHA
> Dolomite 6
> Kona Feldspar 45.5
> Kaolin, Generic 2.5
> Zinc Oxide 4
> Silica Flint 20
> Gerstley Borate 13.7
> Whiting 8.3
> Red Iron Oxide 10
>
> J. CULLEN'S TOUCHSTONE RED
> Gerstley Borate 32
> Silica Flint 30
> Red Iron Oxide 15
> Custer Feldspar 20
> Talc 14
> Kaolin, Generic 5
>
>
>
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