ian vonthaden on tue 13 mar 01
this is an interesting solution. do you know what temperature i would have
to get the kiln to. and is there anything else that i would need to mix with
the glass powder...glass is something there is an abundance of here, since
there is no formal trash disposal outside of the main cities
thanks,
ian
>From: Joseph Herbert
>Reply-To: Ceramic Arts Discussion List
>To: CLAYART@LSV.CERAMICS.ORG
>Subject: Re: need glazes/ advice for Albania
>Date: Tue, 13 Mar 2001 07:47:34 -0600
>
>My thought for a solution to the Albanian problem, the glaze one not that
>other problem, is to formulate a glaze based on glass. Bottles, window
>panes, cullet, etc. Southeastern American folk potters did well with this
>kind of glaze. Perhaps just ground glass and local clay could make a
>successful glaze. The most difficult part of this program is reducing the
>glass to a fine enough powder to be used in a glaze slurry. This is a
>mechanically simple but energy intensive process. The folk potters used
>mule driven mills to accomplish this task. Similar smashing and grinding
>tasks have been done by water powered trip hammer mills. In any event,
>glass is a common material that can be turned to this use with some
>success.
>
>Joseph Herbert
>
>______________________________________________________________________________
>Send postings to clayart@lsv.ceramics.org
>
>You may look at the archives for the list or change your subscription
>settings from http://www.ceramics.org/clayart/
>
>Moderator of the list is Mel Jacobson who may be reached at
>melpots@pclink.com.
_________________________________________________________________
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Louis Katz on tue 13 mar 01
A few recipes I worked up for Eddie (Nikom) McGrath before his death. He =
said they
were working for him, although I don't really know what this means. He us=
ually
applied glaze in a very watery consistency. Looking for gloss with as lit=
tle
material as possible.
As for grinding it I would take some bottles, put them in a wire basket,=
place it
over a wood kiln chimney and quench it in water after the glass gets soft=
.. Safety
goggles. This seemed to make it more friable.
Be careful not to let homemade glass powder settle into the bottom of a b=
ucket, it
gets real hard quick.
Louis
Glaze name: Nikom
Cone: 2 - 6 guess
Color:
Testing: Untested
Surface texture: shiny glossy
Firing: Ox. or Red.
Recipe: Percent Batch
Dankwean Red Clay 16.67
Wood Ash 33.33
container glass 50.00
Totals: 100.00 % 6.00 gm
Possible Health Hazards:
Wood Ash: caustic-avoid contact with skin or eyes
Unity Formula for Nikom:
0.158 K2O=A0 0.085 Al2O3 1.221 SiO2=A0
0.116 Na2O 0.011 Fe2O3 0.003 TiO2=A0
0.595 CaO=A0 0.013 P2O5=A0 14.4:1 Si:Al Ratio
0.131 MgO=A0
Percentage Analysis:
50.01 % SiO2
5.94 % Al2O3
10.17 % K2O
4.91 % Na2O
22.79 % CaO
3.62 % MgO
1.23 % Fe2O3
1.23 % P2O5
0.14 % TiO2
Glaze name: Nikom Altered 1
Cone: 2 3 4 5 6 guess
Firing: Ox. or Red.
Recipe: Percent Batch
container Glass 40.97
Wood Ash 24.41
Dankwean Red Clay 7.03
Kaolin 8.09
Whiting 0.56
Silica 18.94
Totals: 100.00 %
Possible Health Hazards:
Wood Ash: caustic-avoid contact with skin or eyes
Silica: free silica-wear a NIOSH approved dust mask when handling dry mat=
erial
ian vonthaden wrote:
> this is an interesting solution. do you know what temperature i would h=
ave
> to get the kiln to. and is there anything else that i would need to mix=
with
> the glass powder...glass is something there is an abundance of here, si=
nce
> there is no formal trash disposal outside of the main cities
> thanks,
> ian
>
> >From: Joseph Herbert
> >Reply-To: Ceramic Arts Discussion List
> >To: CLAYART@LSV.CERAMICS.ORG
> >Subject: Re: need glazes/ advice for Albania
> >Date: Tue, 13 Mar 2001 07:47:34 -0600
> >
> >My thought for a solution to the Albanian problem, the glaze one not t=
hat
> >other problem, is to formulate a glaze based on glass. Bottles, windo=
w
> >panes, cullet, etc. Southeastern American folk potters did well with =
this
> >kind of glaze. Perhaps just ground glass and local clay could make a
> >successful glaze. The most difficult part of this program is reducing=
the
> >glass to a fine enough powder to be used in a glaze slurry. This is a
> >mechanically simple but energy intensive process. The folk potters us=
ed
> >mule driven mills to accomplish this task. Similar smashing and grind=
ing
> >tasks have been done by water powered trip hammer mills. In any event=
,
> >glass is a common material that can be turned to this use with some
> >success.
> >
> >Joseph Herbert
> >
> >______________________________________________________________________=
________
> >Send postings to clayart@lsv.ceramics.org
> >
> >You may look at the archives for the list or change your subscription
> >settings from http://www.ceramics.org/clayart/
> >
> >Moderator of the list is Mel Jacobson who may be reached at
> >melpots@pclink.com.
>
> _________________________________________________________________
> Get your FREE download of MSN Explorer at http://explorer.msn.com
>
> _______________________________________________________________________=
_______
> Send postings to clayart@lsv.ceramics.org
>
> You may look at the archives for the list or change your subscription
> settings from http://www.ceramics.org/clayart/
>
> Moderator of the list is Mel Jacobson who may be reached at melpots@pcl=
ink.com.
Lili Krakowski on wed 14 mar 01
After I suggested cullet I walked along Fancy Shop Street. I noticed some
crystal and remembered that glass CAN CONTAIN LEAD. Do ask.
Lili Krakowski
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