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a ceramic mold for blown, hot glass

updated fri 31 may 96

 

Reid Harvey on thu 9 may 96

Greetings. The following message has gone to the glass list,
rec.crafts.glass, for their comment. It appears ceramic molds are well
suited to cast and blown glass applications, but an appropriate clay body
and temperature, etc., are needed from the materials listed below. Note
that exact properties of the particular materials are not known, requiring
experimentation within limits. Can anyone suggest appropriate bodies?
Thanks.

>Greetings from Kenya. Here at Alama Ltd., we are getting ready to begin
>production of hand made >glass. Sheets will be for use by our sister
>business, Prisma Art., Ltd. Can anyone give us >information on the
>potential for blowing glass into ceramic molds?
>
>We have a ceramist who can help fabricate the molds, if they can be made
>to work with glass. >We also have people who have worked with plaster and
>silica molds, with metal molds and with >graphite molds. But such molds
>would be expensive here in Kenya.
>
>At present the ceramic materials we have to work with include: kaolin,
>kyanite, silica, whiting, >dolomite, bentonite and feldspar. Note we are
>not necessarily asking for a recommended >composition, but rather, whether
>or not a ceramic mold would work for multiple castings.
>
>Thanks in advance. Alama & Prisma

Note we are hoping for suggested composition through Clayart. Anyone with
answers could respond to the list, however, note that we are not on the
list. Caould responses be sent directly to: attic@arcc.or.ke

Thanks