8 Sided Kiln Round Shelves - Half Shelf

High Alumina kiln shelves are a good alternative to expensive silicon carbide while being roughly half the price. These shelves have up to 12% more alumina than standard Mullite/Cordierite shelves that most is more commonly used. This gives these shelves a higher firing range, up to Cone 11 or 12. They are quite durable and not subject to thermal shock problems that afflict shelves that are mainly composed of alumina. You can save your back by buying thinner shelves that are stronger than their 1" counterparts in the less durable compositions. Spectrum or equal.