Glossary of Terms - L
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Leather Hard Clay
Leather Hard Clay
Unfired clay which is no longer soft and malleable, but can be easily cut with a tool or fingernail.
Lustres
Lustres
Lustres are a special type of surface design material used in ceramics to achieve extremely bright metallic details. The firing range for these materials is between 022 and 019 (very low), making them perfect for downfiring already glazed ware. Take caution when using lustres as they are oil based and produce toxic fumes that should not be breathed- use a respirator capable of protecting you from harmful vapors and use lustres in a well-ventilated area.