Kiln Shelves
Important
Note: If you fire with the smallest size shelf for your project
you will have less mass to heat up, saving you energy. It will
also cause your kiln to heat more rapidly, if desired. Most important,
the more space you have between the shelf and sides of your kiln,
the less risk of thermal shocking your glass. Remember to lift
your shelf off the kiln floor with posts, listed below, for more
even heating. Consider purchasing a variety of shelves. You must
coat kiln shelves with separator before firing so glass does
not stick.with 50% Alunima
Cordierite and Mullite
This great material has a very low thermal expansion
which helps limit shelf cracking.
| Order # | Shape | Size | Thick | Material | Price |
|---|---|---|---|---|---|
| G55 | Square | 5" x 5" | 1/4" | Graphite | $15 |
| KS5 | Square | 5.5" x 5.5" | 1/4" | Ceramic | $6 |
| KS6 | Square | 6" x 6" | 3/8" | Ceramic | $6 |
| KS8 | Square | 8" x 8" | 1/2" | Ceramic | $8 |
| KS910 | Square | 9" x 10" | 1/4" | Ceramic | $9 |
| KS12* | Square | 12" x 12" | 3/8" | Ceramic | $14 |
| KS16* | Square | 16" x 16" | . | Ceramic | $26 |
| KS20** | Square | 20" x 20" | . | Ceramic | $40 |
| KS11R* | Round | 11"" | . | Ceramic | $9 |
| KS13R* | Round | 13" | . | Ceramic | $20 |
| KS16R* | Round | 16" | . | Ceramic | $30 |
| KS19R* | Round | 19" | . | Ceramic | $64 |
| KS16oct* | Eight side | 15" x 16" | . | Ceramic | $25 |
| KS20oct** | Ten side | 21" x 22" | . | Ceramic | $58 |
Kiln Posts
It is important to lift your kiln shelf off the
floor of your kiln to allow heat to get under the shelf. This
allows the shelf and your glass to heat more uniform, preventing
the glass from breaking due to thermal shock and will allow you
to heat the kiln at a faster rate. Lay 3 or 4 kiln posts under
your shelf to raise it 1 to 1-1/2". It is OK to stack more
than one shelf in your kiln if you have elements on the sides
of your kiln (as opposed to only in the lid). Heat from the side
element will travel between the shelf layers. Although you still might
experience some uneven heating.| Order # | Shape | Thickness | Length | Price |
| 4809 | Square | 1½" | 1" | 1.60 |
| 48092 | Square | 1½" | 2" | 1.60 |
| 48093 | Square | 1½" | 3" | 1.80 |
| 48094 | Square | 1½" | 4" | 2.00 |
| 4810 | Square | 1½" | 6" | 2.40 |
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