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glaze tests for ball crawls and fake shinos, cone 6, oxidation.

updated fri 22 dec 00


Alisa and Claus Clausen on thu 21 dec 00

Lana Wilson
Ababy Sharon

Tested on mid range, iron flecked stoneware, fired to cone 1220c, =

Lana's Ball Crawl

60 neph. Sye
22 Magnesium Carb.
18 Ball Clay

Comments: Brushed on thick for texture,=20
Lana sprays it on

Resulted in Matt to gloss heavey withe glaze. No crawling or balling, =
but could be test surface was too limited.

Fake Shino Blend

ANY Glaze, add 10, 20, 30, 40,. 50% Magnesuim Carb.
Used a white matt premixed glaze for test trial

10% showed one big pinhole.
20% dry surface, with few pimples on edges.
30% same, more pimples
40% dry surface with pimples overall and high bubbles with some =
that broke open.
50% similar, but brushed not as thick as above, and noenof the =
pimples were broken.

Personal: I am not sure if I added the percents correctly. I added each =
percent of Magnesium carb. to 100 grams of base glaze.
Now that I am writing this, I realize I probably should have done it =
like a line blend, 90/10, 80/20. 30/70. 40/60, 50/50. Ababy?
In any case, with 40% Magnesium carb. , the glaze surface looked like it =
ate a french fries, a bag of chips, chocolate and coke.
Could be a good contrast to a smooth matt with color like Marcia's =
turquoise, for non functional.

Same as above, but mixed into a clear gloss premixed glaze.
No surface change until 50% magnesium carb. was added. =20
Overall glaze color became a honey yellow.

Korean 22, cone 6, oxidation.
60 Potash Feldspar
10 Flint
10 whiting
26 Magnesium Carb.
7 Tin oxide
4 Lithium Carb.

Resulted in a glze similar to Lana's, but whiter in color and all matt. =
No texture except extremely thick and covering.

Interesting trials.
Best regards,
Alisa in Demark