Hydro-Stone Plaster USG United States Gypsum Cement, 22.68 kg Raku Glazes and the high soda makes

and the high soda makes it a great flux

so its use in combination with other colorants will often muddy the color that they would otherwise have or alter it if they are sensitive to the presence of iron

Moderately high expansion makes it suitable as a crackle glaze (with an addition of 10% kaolin)

Chemical Formula: Ni2O3

The hydrated version of alumina stays in suspension better in glaze slurries and has better adhesive qualities

Hydro-Stone Plaster USG United States Gypsum Cement, 22.68 kg Raku Glazes and the high soda makesUSG Hydro Stone Gypsum Cement is especially suitable where high strength and resistance to water absorption are necessary. It is ideal for applications in both the tooling & prototyping and art & statuary categories. USG Hydro Stone Gypsum Cement For Tooling & Prototyping USG Hydro Stone Gypsum Cement is ideal for stretch press dies where extreme surface hardness is required. USG Hydro Stone Gypsum Cement: Features a heavy, syrupy consistency, ideal