Hydro-Stone® obsidian listings of works (along with

listings of works (along with size and foundry when known)

a large ~ 8"

Allow the mold to cure overnight (at least 24 hours) at room temperature (73°F/23°C) before demolding

Poly 74-30 Clear Liquid Rubber is a two-part

5044 Code Blue

Hydro-Stone® obsidian listings of works (along withAVAILABLE IN 5, 25, AND 50LB OPTIONS IN THE DROP DOWN USG Hydro Stone Brand Gypsum Cement is an excellent product for manufacturing solid cast architectural, art novelty and statuary products. USG Hydro Stone Gypsum Cement is extremely hard, has high compressive strength, and has high water absorption resistance while giving extremely fine detail duplication. MIXING INSTRUCTIONS Use potable water at temperatures between 70 F (21 C) and 100 F (38 C).