Carol Tripp on sat 18 oct 03
Hi Hank,
I lead a double life when it comes to glazes. At home, where I fire ^6ox,
I have the analysises (oh dear how to make that plural) for every chemical
in my stock. I have all my glazes on computer. I have a triple beam scale.
I have a pleasent place to work and interesting things to listen to. I am
well fed and content.
At the Art Centre, where the pottery director fires to ^9-10 ox, nearly
every barrel of chemicals has a label that is probably correct. The scale
is ancient and battered. And the glaze room has a bare bulb in the ceiling
and two of the windows are broken. And I am most probably hot, hungry,
thirstly and grumpy, though how that affects the glazes I don't know.
Don't get me wrong, I love the Art Centre and am eternally grateful I found
clay there, but hi tech it ain't and neither is my glaze making while on
site. So when Bev's Smile turns purple there, just think of it as the far
traveled version. ;-)
Best regards,
Carol
Dubai, UAE
Hank wrote:
>Me too. can't imagine how it got that way, as Bev's Smile is one of the
>most stable glazes in my repertoire. Here is the original recipe to
>check with yours:
>
>BEV'S SMILE! C/9-10 Red. or Ox. (reduction will bring out the green
>color from whatever iron is in the body. Light blue and crystalline
>where thicker). I have been firing it around strong 10 lately.
>
>Buckingham Feldspar 42.00 (sub Kingman or Custer or G-200)
>Whiting 20.00
>EPK 25.00
>Silica 10.00
>Rutile 3.00 (try more Rutile or just TiO2)
>Cobalt Carbonate 1.5
>
>Unity Formula for Smile!:
>0.194 K2O 0.607 Al2O3 2.974 SiO2
>0.066 Na2O 0.004 Fe2O3 0.139 TiO2
>0.737 CaO 0.001 P2O5 4.9:1 Si:Al Ratio
>0.004 MgO
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