Plaster of Paris is a general-purpose gypsum powder that makes an effective finishing or molding material for many craft projects. Although there are some substitutes for plaster of Paris (including concoctions based on white glue or flour), plaster of Paris is a specific item with no pure do-it-yourself home substitute. However, you can buy the plaster of Paris powder cheaply and use it in many different ways to achieve your arts-and-crafts goals.
Instructions
1. Mix your plaster of Paris at a ratio of two parts plaster to one part water. Other ratios are permissible, according to the manufacturer's instructions, for different applications. Soupy mixes might be better for things like handprint disks, while thicker mixes are better for surfacing a durable craft project.
2. Add liquid food coloring to the plaster mix for color. Use 1 tsp. of coloring per one cup of water.
3. Add small pebbles to the plaster mix for texture. Include one cup of pebbles for every five cups of plaster powder used. The pebbles should be very small with an average diameter of 1/8 inch.
4. Allow the plaster mix to set according to the manufacturer's instructions. Then, use your plaster promptly before the batch hardens or dries out.
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