Can Corn starch be used for plaster?

Plaster, typically composed of gypsum (calcium sulfate hemihydrate), is specifically designed for construction and artistic purposes due to its unique properties. It undergoes a chemical reaction with water, known as hydration, which causes the plaster to set and harden, creating a strong and durable material.

On the other hand, cornstarch, a common kitchen ingredient, is a starch derived from corn. While it has thickening properties when mixed with water, it does not possess the binding and hardening characteristics necessary for plastering. Cornstarch lacks the cementitious properties of plaster and would not provide the desired strength and durability required in construction or molding.