A high-grade powder which produces a smooth white cast when mixed with water.
Mix 4 parts plaster to 3 parts water. Use a clean mixing container and sift the powder into clean water. Leave for 1-2 minutes to allow air bubbles to escape, then stir gently to a creamy consistency, breaking up any lumps. Setting time is approx 15-20 minutes.
Caution: Working with this plaster may irritate eyes, sensitive skin and respiratory system.