Modroc is a plaster bandage i.e. a gauze impregnated with Plaster of Paris. Once dipped in water, it can be applied to a surface to make a cast or shape. The plaster will start to set after about 3 minutes.
The Modroc will be hard enough to handle after 30 minutes and will develop to full strength overnight. It can be used on its own in a suitable mould, or sculpted around wire or card models. Smaller strips can be cut off with scissors.The Modroc can be decorated and painted with acrylic paints when fully dry.