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Lesson Plans


Re: cracking clay--please help!

[ Thread ][ Subject ][ Author ][ Date ]
Artemis420
Tue, 23 Nov 1999 00:23:27 EST


In a message dated 11/22/99 12:11:53 PM Pacific Standard Time,
HHouston.k12.me.us writes:

<< The crack (it is usually just
>one) usually runs across the face, which is formed on a newspaper armature.
> I truly believe the clay is dry enough when put in the kiln. someone
>suggested maybe there is too much clay on the HOT surface of the shelf and
>that is the culprit. I tried putting them on stilts when firing--still
>cracked. Has anyone had this experience? >>
When things crack in the glaze or second firing its usually because there is
a weakness there, clay was thinner or stretched thinner in that place.
Artie

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