LAURIE HASHIZUME on fri 13 apr 12
I=3D27m hoping someone can help me understand pinholing=3DA0and blistering =
p=3D
roblems I=3D27m having with a new (to me) glaze=3D2E The formula is posted =
o=3D
n the Digitalfire=3DA0website=3D2C with a photo of a test piece on the same=
=3D
clay I am using (Plainsman=3DA0Clays M-340 Stoneware)=3D2E
The glaze is a cone 6 oxidation recipe=3D2C called =3D22Rutile Blue=3D22=3D=
2E =3DA0=3D
I really like the effect=3D2C which is why I am persevering with it! =3DA0 =
=3DA0=3D
The recipe is=3D3A =3DA080 Alberta slip
=3DA0 =3DA0 =3DA0 =
=3DA0 =3DA0=3DA020 Frit=3DA03134
=3DA0Add=3D3A =3DA03=
=3D2E25 Rutile
When I first had problems with the glaze=3D2C I contacted Plainsman=3DA0Cla=
y=3D
s=3D2C which offers assistance with glaze problems on its clays=3D2E I sent=
=3D
photos of the faults and the fellow I spoke with consulted with Tony Han=3D
sen=3D2E =3DA0I was advised to do a slower bisque firing=3D2C program a spe=
cif=3D
ic variable firing with a slow cool=3D2C and calcine=3DA0half of the Albert=
a=3D
slip=3D2E =3DA0I have done this=3D2C re-mixed the glaze=3D2C strained thro=
ugh 8=3D
0 mesh sieve as recommended=3D2C and still have considerable pinholing=3D2E=
=3D
=3DA0The most recent suggestion is to change the clay body to something wi=
=3D
th a finer mesh=3D2C but I=3D27m a bit confused because the illustrations f=
o=3D
r the glaze show it on the clay body I am using=3D2E
Any help with this would be greatly appreciated=3D2E
Thanks=3D2C
Laurie
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