Gauze bandage coated with Plaster of Paris. The bandage is wrapped around a plastic spool designed to wet quickly and evenly when immersed. Once the bandage gets wet, it forms a hard and hard structure that is both porous and absorbent.
Plaster bandage is made of gauze bandage with sizing and plaster of paris powder. It can be hardened and shaped in a short time after soaking in water.