Hydro-Stone® Gypsum Cement

Exceptionally strong gypsum cement designed for stretch-press dies and producing cope-and-drag equipment.

Overview

Exceptionally strong gypsum cement designed for stretch-press dies and producing cope-and-drag equipment.* Produces high-quality, indoor novelty and statuary castings that require extremely hard surfaces and superior reproduction of fine detail. Superior expansion vs. Hydrocal A-11 or B-11 gypsum cements.
*High water absorption resistance.

MAIN FEATURES
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.

Hydro-Stone Gypsum Cement For Tooling & Prototyping
Hydro-Stone Gypsum Cement is ideal for stretch-press dies where extreme surface hardness is required. Offering greater expansion than Hydrocal A-11 or B-11 gypsum cements, Hydro-Stone Gypsum Cement:
Features a heavy, syrupy consistency, ideal for pouring into solid models or patterns (and making it ideal for filling multiple molds simultaneously)
Adapts to most flexible moulding compounds, due to its high absorption resistance
Sets in 17-20 minutes, after machine mixing
Requires 32 parts water by weight per 100 parts plaster.
NOTE For best storage results, keep indoors in a dry, stable environment, away from drafts. Do not stack more than two pallets high.

Hydro-Stone Gypsum Cement For Art & Statuary
One of the hardest and strongest Hydrocal products, Hydro-Stone Gypsum Cement is used in the fabrication of high-quality art novelty and statuary castings. Offering excellent paintability, Hydro-Stone Gypsum Cement:
Can duplicate extremely fine details
Works well in plaster and most flexible moulding compounds
Is self-leveling, with low viscosity
Provides fast set time for quick mold turns