Hydro-Stone Plaster USG United States Gypsum Cement, 22.68 kg Raku Glazes The hydrated version of alumina

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

and the high soda makes it a great flux

introducing pure white to the colors you are using

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

Hydro-Stone Plaster USG United States Gypsum Cement, 22.68 kg Raku Glazes The hydrated version of aluminaUSG 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