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Lesson Plans

Re: Response to Flakey Kiln Wash Shelf Mystery

[ Thread ][ Subject ][ Author ][ Date ]
Patricia Munce (pdmun)
Tue, 31 Dec 1996 16:19:33 -0800


I think the gum solution may be worth trying along with the ideas listed below.

Remember once it fires, this disappears. Its like firing molasses in a
glaze as a binder. Smells good while firing, holds the powdery glaze to
the bisque fired pot just peachy and passerbys think you are baking
cookies. However, afterwards it is only a fond memory.

WATCH THE BENTONITE!!!!! Remember it shrinks BIG TIME!! 2% is the max you
can add to glazes without having problems. Once it fires. And that is the
point, right? You are back to flakes I fear.
Have you checked out Rhodes books on glazes? He deals with the chemistry
and may be of help.

Pat Munce

>You may want to try the the following ideas to aid in getting the kiln wash
>to stay on the shelf.
>1- Sand the shelf with a hard fire brick or carbide blast the shelf. A
>monument company can do this probably for a small fee.
>2- If step one is successful, dip the whole shelf in water for few seconds
>before applying wash.
>3 Add gum solution to kiln wah or add about 2% bentonite. The gum
>solution prevents it from chippinf off. The bentonite offers a better bond
>and keeps the materials from settling to the bottom of the container.
>Best Wishes
>********Ray Kinard is subscriber and wife.
>Robert F. Kinard Education Track, Ph. D. Program,
>Walden Uni.
>rkinard Art Educator, School District of Fairfield County
>(803) 786-1686 (H) (803) 635-1441 (W) rkinard