Potters & Sculptors - Making Rock from Mud
I fired a bisqued Laguna #80 clay test ring consisting of a nutmeg base coat (brushed on) all the way around the ring and 9 glazes brushed-on in patches over the nutmeg. I am quite taken with the luscious surfaces and coloration that developed. The kiln was soaked for 1/2 hour after the kiln sitter tripped on a cone 5 1/2 pyrometric bar. I cooled under power at medium heat for an hour and forty-five minutes to 932 degrees C (overshot my 950 degree target) and soaked at that temp for an hour to develop iron reds and then shut off the kiln. The cone rack on the test shelf ended at cone 6.2 ( read that as cone 6 touching down and cone 7 pointing at 2 o'clock)
Recipe Name: Nutmeg
Cone: 6 Color: Tan - light brown
Firing: Oxidation Surface: Semiglossy
6.8 Frit--Ferro 3134
23.3 Ball Clay--Old Mine #4
1.1 Iron Oxide--Red
4.9 Tin Oxide
3.2 Yellow Ochre
Comments: Richard Busch Ceramics Monthly 2/2003
Author mixes this glaze 2/3 with 1/3 Busch white satin matte
By itself a warm tan breaking brown over iron bearing clay body.
Picture 1 - Left to right
A - Waxwing Brown from Mastering Cone 6 Glazes - note some blistering at the perimeter
B - C. Harris Temoku - (the version I have posted on cone6pots
C - Transparent grey-green scrap glaze of unknown composition
Picture 2 - Left to right
C - Transparent grey-green scrap glaze mentioned above
D - Rutile Matte
E - Cone 5-6 Clear rendered the Nutmeg a uniform translucent grey breaking brown
Picture 3 - Left to right
F - Floating red - rich caramel and chocolate
G - Storer Semi-matte green - blistered where thin
H - GA 25 Black - variation of Ron Roy's licorice? From M Bailey's Glazes Cone 6
Center patch is Variegated Slate Blue from MC6G - this is the second time I've tested this combo and really liked the result.
The ring was dipped upside down in nutmeg 1 coat. The other glazes were brushed on with one coat over the patch area and a second coat on the left side of the patch. For this test ring, the glaze catcher foot would stop just about any runs. Inside, outside, and flat are all a bit different I prefer to test on vertical surfaces.
Me too, I really like the discoveries that come with using a vertical surface. Not many pottery pieces my husband produces are flat:)
Nadine Mercader said:
Thanks George, I agree about having the vertical surface, it tells so much more than tiles.
The D result is fantastic. Probably my favorite. I like the test cylinder. Nice work thanks for sharing.
One of my favorite glazes layering to give great depth and movement. Over and under. Some of my best pieces have used that glaze. Experiment with it all the time.