search  current discussion  categories  glazes - misc 

dispersing colorants in glazes - rr

updated wed 17 mar 10

 

Ron Roy on mon 15 mar 10


I found out by testing that if I put a cup of celadon glaze with all
the iron for a bucketful of new glaze - through a 140 mesh sieve there
was no more mottling.

Easy of you use a little more water.

RR

Quoting Marcia Selsor :

> Ball milling iron for a celedon reduces spots from the iron. I had a batc=
h of
> celedon that had those spots. Wished I'd had ballmilled that glaze becai
> use the decoration of the pot was really nice. Hindsight is cheap as
> they say.
> Marcia

Marcia Selsor on mon 15 mar 10


does this work for black iron also?
I am getting some nice spotting on a beautiful yellow glaze. However, I =3D
wouldn't want the same spotting on a celedon.=3D20
Thank you for that tip. It sounds easier. I have a wonderful set of 8 =3D
Standard brass sieves from Golden recycling in Montana.
I'll try it.
Marcia
On Mar 15, 2010, at 10:23 PM, ronroy@ca.inter.net wrote:

> I found out by testing that if I put a cup of celadon glaze with all =3D
the iron for a bucketful of new glaze - through a 140 mesh sieve there =3D
was no more mottling.
>=3D20
> Easy of you use a little more water.
>=3D20
> RR
>=3D20
> Quoting Marcia Selsor :
>=3D20
>> Ball milling iron for a celedon reduces spots from the iron. I had a =3D
batch of
>> celedon that had those spots. Wished I'd had ballmilled that glaze =3D
becai
>> use the decoration of the pot was really nice. Hindsight is cheap as =3D
they say.
>> Marcia
>=3D20
>=3D20

Marcia Selsor
http://www.marciaselsor.com

John Britt on tue 16 mar 10


Marcia,

You can also change the iron to synthetic yellow or synthetic red iron an=
=3D
d
there is no specking as it is so fine. I also use Barnard or Redart. 140 =
=3D
/
150 mesh sieve is very tight and difficult to pass things through. That =
=3D
is
why they ball mill.

John Britt
www.johnbrittpottery.com