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Re: [teacherartexchange] Advice needed: Glazes


From: KulasFamily (makul9_at_TeacherArtExchange)
Date: Thu Dec 09 2010 - 16:07:38 PST

Great ideas San D! She can order more glazes (my email was not clear) but on
a rather small budget...

----- Original Message -----
From: "San D Hasselman"

I am assuming she can not order new glazes and must use what she has. First
off she should make test tiles with the glazes so SHE can see what they look
like as well as her students. The tiles should be examples of the glazes
gloss/matt. I am not a math major but there are many permeations of how many
test glazes she could get by brushing one color over the other, or more than
one, etc, etc, etc.

Next she should teach students about pouring and splattering, scraffitto,
using different color clay bases, masking off different areas (I used
masking tape then carefully pulled off the masking tape right before
firing). You can also NOT glaze the surfaces, but paint with regular
paints, do a decoupage technique with other materials, spray paint, etc. The
alternative useages should be on pieces that will NOT be used for food or
drink (i.e. functional boxes, things with drawers, sculptural objects).

Just a word about scraffitto. I have seen some interesting pieces using this
technique where you incise a design in the leather hard clay, bisque fire
the work, then paint the glaze over the desing, then steel wool the glaze
off the pot, but leave it in the crevices of the scraffito. Doesn't take
much glaze, and it looks terrific when fired again.

Also another thing that looks terrific is if you fire your pot in one color,
ie white, and when you take it out of the kiln you take it over to the sink
while it is still pinging (and you wear gloves) and make sure you wear
safety glasses too, you run the warm pot under cold water. This will crack
the glaze all over the pot. You then put the pot aside until it is cool. You
then work in small areas by putting black ink on a rag and putting it over
the pot, making sure that you don't keep it on permanently on the glaze, but
rub it into the cracks. You get a crackle effect on your pot. This is a
technique not used for pots meant for food or drink.

San D

> >
> Anyone have advice for a new hs art teacher on glazes for her (low fire)
> ceramics unit? She inherited about 9 pints of Gare underglazes. I
> suggested
> just adding a clear glaze and giving the students the option of
> gloss/glazed
> and unglazed surfaces ( for her first year of teaching). Any additions
> that
> she should add?
> Thanks in advance for the help!!
> Mary in MN
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