Alisa and Claus Clausen on fri 10 mar 00
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Hi Gwen,
Thanks for your ideas.
I am still waiting now to see if the glaze preparation has been the
shivering problem.
I have some standing up tiles made to be bisqued, so I can
try the engobes on the white body again for close inspection.
I will paint them with differing thicknesses, to see how they do.
I like texture in my engobes, which I easily get with the engobes
made from my throwing body.
I need to find out why recently the community studio is having
a shivering problem.
And know that problem of many lands divided by the same language,
as Tom Buck told me.
Gum? What is that. Is it a glue? I use powdered wall paperglue boiled
in water to my raku glazes that are almost all frit to get them to stick
together
better.
Have you tried adding ball clay to your pure oxides?
I do this to make give a better consitency to paint with,
and I can add enough to give them some texture when
they dry. Do not overdue it, because they will get too dry
when it dries(powdery).
Thanks for your advice.
My pots fired at home with the transp. glaze I mixed at home fired fine.
This batch of transp. at the studio could well be the problem.
I am making all sorts of test pots to fire at both locations to be
really secure. These problems bug me a lot.
Alisa in Denmark.
-----Oprindelig meddelelse-----
Fra: Gwyn Ace =3Cgwyna=40xtra.co.nz=3E
Til: CLAYART=40LSV.UKY.EDU =3CCLAYART=40LSV.UKY.EDU=3E
Dato: 8. marts 2000 23:45
Emne: shivering galze over engobe
----------------------------Original message----------------------------
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Alisa...I have had this problem when using a heavy oxide wash over the clay =
or
when using
an engobe which was not fluxing at the temperature. I found the way out was =
to
get everything
to stick together when dry and during firing...first..test a big blob of the
engobe..in a firing and
see if it is still friable afterwards or is it well fused..If not well
fused..add a frit to it..a small
amount should do the trick.and add a little gum to the engobe..
Adding a little gum or bentonite to the glaze could help the 'wetting' =
quality
of the glaze..
a close examination of the bonding between the 'layers' would help to =
identify
where
the problem is. and why there is no 'togetherness'
Hope this helps...Gwyn in N.Z.
When we have been working long enough to strike all the problems
we end up with more than half of the answers =21
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