Cate Ortynsky on sun 1 jul 12
How do these two forms compare when fired. Can one substitute the former =
=3D
for the later? Cate from Silver Willow Pottery.=3D
Edouard Bastarache on sun 1 jul 12
It depends on the size of the ganules.
1-Granular (120 mesh)
http://photos1.blogger.com/blogger/2809/1218/1600/Bass960.0.jpg
2-Standard (Flour-200 mesh)
http://photos1.blogger.com/blogger/2809/1218/1600/Bass1032.0.jpg
Plejkore,
Edouard Bastarache
Spertesperantisto
Sorel-Tracy
Quebec
http://www.flickr.com/photos/30058682@N00/
http://edouardbastarache.blogspot.com/
http://smart2000.pagesperso-orange.fr/bloggs_edouard.htm
http://www.facebook.com/edouard.bastarache
Steve Slatin on sun 1 jul 12
Cate -- =3D0A=3DA0=3D0AThe particles of granular rutile are much larger tha=
n thos=3D
e of the powder.=3DA0 I suspect most=3D0Apotters use 'ceramic grade' which =
is, =3D
IIRC, both finely ground and calcined.=3DA0 If you're after=3D0Athe chemica=
l ef=3D
fects of rutile, it's the way to go.=3DA0 Granular gives you more spotty ef=
fe=3D
cts=3D0A(which may be exactly what you want) and has some slight tendency t=
o =3D
encourage =3D0Apinholing issues.=3D0A=3DA0=3D0AMy limited efforts at testin=
g effect=3D
s tended to show very little difference with rutile below=3D0A2 percent of =
th=3D
e glaze at ^6.=3DA0 By 5 percent it was fairly visible.=3DA0 =3D0A=3D0AStev=
e Slatin=3D
-- =3D0A=3D0A=3D0AN48.0886450=3D0AW123.1420482=3D0A=3D0A=3D0A_____________=
______________=3D
_____=3D0AHow do these two forms compare when fired. Can one substitute the=
f=3D
ormer for the later? Cate from Silver Willow Pottery.
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