You can shape a piece of firebrick with a screwdriver or knife.
Especially delicate silver clay pieces such as hollow spheres should be supported in the kiln. They may distort if placed on a flat shelf. You can support them on a small piece of ceramic fiber blanket, or a mound of vermiculite or alumina hydrate inside a ceramic bisque bowl, a small terra cotta flowerpot, or a stainless steel bowl.
Another method is to use a piece of firebrick formed to the shape of the silver clay. Insulating firebricks are porous, lightweight, easy to cut, and last through many firings.
Use a hacksaw to slice off a 1” section from an insulating firebrick. Shape the firebrick with a screwdriver or knife. You can also fill the recessed area of the brick with vermiculite or even powdered firebrick.
I hope you have a pleasant Friday tomorrow. We are having visitors here at the Paragon factory for a kiln maintenance seminar.
With best wishes,
Arnold Howard Paragon Industries, L.P. – Better Designed Kilns 2011 South Town East Blvd. Mesquite, TX 75149-1122 Voice: 972-288-7557 & 800-876-4328 / Fax: 972-222-0646 firstname.lastname@example.org / www.paragonweb.com
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