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Claypple

Member Since 15 Dec 2012
Offline Last Active Aug 27 2013 08:06 PM
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Topics I've Started

Commercial glazes: good experience

03 July 2013 - 10:21 PM

Would anybody be interested in sharing success / good experience with the commercial glazes?
I have a lot of them; mostly Coyote, Potters Choice, Amaco, Laguna.
It takes a lot of experimental firings to find out when they look the best.
I do realize that it also depends on the type of the clay we use, the firing schedule, etc., but there are definitely some things we could share with each other so we would not "discover America" with every new glaze we use.

As an example and as the first person to share: This is Coyote Butterscotch Shino MBG086 ^6
It looks the best on a rough surface. You can see the difference: inside the surface was smooth, but outside I used some slip to create a texture.
The dark brown strip is just a thin layer of a Potters Choice glaze. Slow firing to ^6.


Attached File  100_2106.JPG   508.98KB   69 downloads

Vinegar and clay.

17 June 2013 - 12:01 AM

I like using vinegar when I play with the clay. I do it when I connect scored areas, and sometimes I brush it on the clay to smooth the surface.
Vinegar is acidic, the clay is slightly alkaline, so it increases the plasticity of the clay when you brush the vinegar on it.
Just one question: would it increase warping of the clay?

Bubbles in pugged clay

07 June 2013 - 11:30 PM

I use Laguna clay that comes in 25# bags. It is already pugged.
I cut it with a wire and it seems to be homogenous. I do not think I need to wedge it.
However, when I through it on the wheel, I often feel bubbles of air and pockets. Since I through thin, they usually disappear as I lift the vessel,
so I have not had any pots/bowels explode in the kiln yet. Does what I described happen very often? Do I have to wedge pugged clay?

Amaco "Potter's choice" glazes

23 May 2013 - 08:41 PM

Anybody has an experience with AMACO"s "Potter's choice" glazes?
They are supposed to be fired at ^5-6

I fired tile samples at ^5+ and they all look so ugly! (PC-20 PC 53)
Just dark grey colors, not even close to what it looks on the pictures.

I also had the same bad experience with Laguna stain.

Any words of wisdom?

Shaker-mixer.

23 May 2013 - 09:26 AM

Home-Depot's paint department uses some kind of shakers to mix the paint. I think it is more efficient than using a mixer that you dip into the glaze.
Anybody knows what would work like that shaker /how to make that kind of equipment?