Plaster of Paris

Definition

Plaster of Paris is pure calcined gypsum.

Purpose

Plaster of Paris is used for casting, molding, and decorative applications. It hardens quickly when mixed with water, making it ideal for making sculptures, casts, and intricate architectural details.

Examples of Use

• Casting: Used to create molds and casts for statues, medical casts, and art projects.
• Architectural Details: Applied to form decorative elements such as cornices, ceiling medallions, and wall panels.
• Repairs: Used to repair holes and cracks in walls and ceilings.

Related Terms

• Gypsum: A soft sulfate mineral used in the manufacture of plaster, plasterboard, and cement.
• Stucco: A fine plaster used for coating wall surfaces or molding into architectural decorations.
• Drywall: A construction material consisting of a gypsum core pressed between two sheets of paper.

Notes

• Mixing: Should be mixed with water to a smooth consistency and used quickly before it hardens.
• Safety: Proper ventilation and protective gear are recommended during use to avoid inhaling dust.