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ALCHEMY OF CLAY: Art and life connect! This fabric design is by Amanda Richardson - British fabric & textile artist in Penberth Valley, Land's End, Cornwall, England, UK

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Showing posts with label Glaze Test tiles. Show all posts
Showing posts with label Glaze Test tiles. Show all posts

Monday, July 20, 2015

Test tiles fired!

Merry Christmas to the BMCA pottery studio!

There are most of the tiles finished that were eagerly awaited.
Results are mixed on at least one of the glazes, so re-testing might be a good idea.  It looks like it's pretty thin and didn't behave like a blue should...some of the tests show it as brown.  Oops.

But here are the ones that worked!

Our new Matt Black glaze, with each of the other studio glazes over it.
I'll list them in order from l to r, and on each row I'll show below, the same 11 glazes will be shown on a different base glaze, which was dipped once, allowed to dry over night, then dipped in the "over glaze."
plum, black, white, glossy green, celadon, black mountain blue, clear, floating blue, eggshell, matt bronze green, and nutmeg.

 Our new Plum glaze (which is terribly runny, but does great to accent things)


Satin White base


Glossy green base


Nutmeg base

Celadon base


Black Mountain Blue base

Clear base

Eggshell base

Matt Bronze Green base

Saturday, July 18, 2015

Glaze Test Tiles or Christmas in July

Two dedicated volunteers have prepared the test tiles for the current studio glazes.

BMCA fortunately has a great selection of 12 glazes.  Test each one against the other, either over or under, and that makes 144 test tiles.

Pat used the extruder above to make the tiles, using 50 pounds of clay.  She then cut them into exact lengths, impressed them with both lines and dotted indentations, and labeled each one.

I got the honor of dipping each into at least two glazes.


We have at least 4 new glazes since the last time we made test tiles.

Each row should have 12 tiles with the same base color
So for the last year we've had to tell new students we no longer have Mexico or Persimon.  Our new Matt Black and Plum, or Glossy Green and the newest version of Celadon - nobody knows how they look with the other glazes.  We're waiting for a new batch of Raspberry that's not got the "purple tinge" that the current batch has, so that we can have tests done with a pure Raspberry glaze.  Of course lots of us have loved the purple-berry, and yet it's not a shop standard glaze.

The kiln is currently loaded, and as soon as it's fired and cooled, we can see how things work out together.

Each set of 12 was dipped first into one color, say Eggshell.  Then a second dip would be at just the top third of the test tile...and the label would say "Black over Eggshell" abbreviated of course to "Black o Egg."  The next tile would be "Floating Blue over Eggshell" or "Float o Egg."

When they do come out of the kiln, it will be like Christmas morning!

Results will be posted asap!

Today's quote:


Try pausing right before and right after undertaking a new action, even something simple like putting a key in a lock to open a door. Such pauses take a brief moment, yet they have the effect of decompressing time and centering you.
A life practice from Br. David Steindl-Rast