Product Details Amaco Kiln Ice Brushable Glaze KI-46 Frozen Fern Category: Mid-Fire Glaze Firing Temperature: Cone 5 – Cone 6 Coats: 3-4 heavy coats What are Kiln Ice Glazes? These glazes are modelled after Guan Ware – a type of Chinese ceramics that was produced during the Southern Song dynasty. How does the crackle happen? The crackle is caused by the expansion and contraction of the glaze and clay body in relation to one another also known as the CTE, Coefficient of thermal expansion. Glaze thickness can affect the size of the crackle, smaller and tighter when thin, larger, and hexagonal when thick. With this glaze thicker is better. Recommended Clays: Brown or buff clays that do not contain manganese work best with these glazes. Application Tips: Apply Kiln Ice glazes thicker than traditional Amaco glazes, at least an 1/8 inch thick (3.175mm). Glaze thickness is critical to achieve a nice crackle. Multiple brushed on layers is better than one thick one. When the glaze thickness starts to get heavy it will take longer to dry in between coats, this is due to the gums that are added to make it brushable also slows the dry time when glaze is thick. Food Safe? Yes, but due to durability, these glazes are not recommended for food surfaces. Use a liner glaze for any food surfaces on functional wares.
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