Rappit Plaster Cloth is cotton coated with plaster of paris a staple material in the art of casting and mold making. Once activated with water, plaster sets in just 5 minutes. Useful for a variety of applications: body casting, face casting, mask making, casting forms, sculpture/modeling, mold making, and so on. Each roll is 12" x 60'. Rappit Plaster Cloth Bandages contain more plaster per square inch than leading brands to ensure a superior, thick plaster consistency. Cut to desired length, dip in warm water, lift out and gently squeeze out excess water and apply. For best results, overlap a portion of the previous bandage until the surface is covered. 3 layers is sufficient. This will help in building up strength in your casting. Use clean water for dipping.