L2000
DraftDescription
Recipe L2000 is a foundational porcelain body designed for Cone 10 oxidation or reduction firing. Standard formulation consists of 25% silica, 25% feldspar, and 50% clay materials. Adjustments to vitr
Original Author
Tony Hansen
Usage Instructions
Recipe L2000 is a foundational porcelain body designed for Cone 10 oxidation or reduction firing. Standard formulation consists of 25% silica, 25% feldspar, and 50% clay materials. Adjustments to vitrification and workability are achieved by balancing the ratio of feldspar (flux) to clay (plasticity/structure). Plasticity may be enhanced with additives such as bentonite, smectite, or hectorite. Fired whiteness and translucency depend primarily on the iron and titanium content of the kaolin selected, while thermal expansion is controlled via particle size distribution in the silica component. Low-temperature maturation requires increased flux content, typically involving higher percentages of feldspar, frits, or talc, often necessitating an increase in highly plastic clay fractions to maintain workability. Material sourcing significantly impacts finished properties; systematic empirical testing is required to balance plasticity, vitrification, fired whiteness, and cost efficiency.