Jump to content

Help With A Glazing Process?


mhristau

Recommended Posts

Nube here.

Might someone speculate on the process best suited to achieve a surface like the attached image of an ancient tile (Sumerian?)?

 

Right now I have two greenware tiles made of clay that fires white. I'm planning to paint black underglaze on the greenware and draw into that (exposing white).

Then fire to the max temp of the clay?

Then apply a matte glaze for a second firing?

 

Any thoughts for me? Appropriate articles?

post-80152-0-09910100-1477620476_thumb.jpg

post-80152-0-09910100-1477620476_thumb.jpg

Link to comment
Share on other sites

Thanks — Testing as suggested with underglaze. I read that engobe is often used for sgraffito — not underglaze — but not clear on why. (?)

Engobe, underglaze, oxide washes, colored slips . . . they can all work fine for sgraffito. Depending on application, each may offer a bit of a different look and feel. Mostly, it is a matter of preference.

Link to comment
Share on other sites

You can use any sort of underglaze or engobe for sgraffito. Do the carving on the stiff side of leather hard. Bisque fire to low fire temps (cone 06-04), then glaze and fire for the glaze. Your glaze should be formulated to mature at the same temp as your clay, whether low fire, mid range or high fire.

Link to comment
Share on other sites

Archived

This topic is now archived and is closed to further replies.

×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.