It's time for the conclusion of the recent test I did with this new black stoneware clay body, (PF 680) — https://valentineclays.co.uk/product/pf-680-smooth-black/ — (use with caution).
This video goes through the entire process, from throwing the objects, small tea caddies, jars, in this instance, trimming them, bisque firing them, waxing them, glazing them and finally reduction firing the vessels to 1290ºc, (cone ten). It's a long process with questionable results... in fact, it all ended in disaster. It happens from time to time, although I think the reasoning in this instance was rather peculiar. I look forward to hearing your analysis of what might have occurred!
Thanks for watching!
📖 • ORDER MY BOOK: https://geni.us/bymyhands
HOW TO SPIRAL WEDGE: https://youtu.be/hYdLGLztT-Q
HOW TO LIFT POTS OFF THE WHEEL: https://youtu.be/05CsVxlULo0
Wadding recipe: Mix 50% kaolin, (I use EPK), with 50% coarse alumina hydrate, (you can use fine alumina hydrate, but it won't work quite so well). Dry mix the two materials with a wet towel over the container, your arm tucked through, this'll stop too much dust from entering the atmosphere. Then SLOWLY add water to the mix until it's a clay-like consistency. If you add too much, too quickly, the mixture can suddenly turn into a liquid, so be careful! It can then be wedged up and store it in an airtight bucket.
🏺 • You may also be interested in my 'A Beginner's Guide' series, which you can find here: https://www.youtube.com/playlist?list=PL2WJhtTF0eGhQwf8g2LHcom_KrvJpH_JT
Timecodes:
0:00 - Introduction & the clay I'll be using
1:41 - Blending the two stoneware clays
4:27 - Throwing the tea caddies/store jars
11:49 - How I invert the callipers and throwing the lids
15:14 - Trimming the pots
22:28 - The trimmed jars
23:23 - Packing the electric kiln for a biscuit firing to 1000ºC
24:26 - Waxing the jars
26:07 - Glazing the jars
28:50 - Cleaning up the glazed surface
31:56 - Positioning the waddings on the underside of the lids
33:10 - Loading my Rohde KG-340 gas kiln
34:00 - Reduction firing to cone ten, (1290ºC)
35:50 - Unpacking the kiln and the results...
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