What is a homemade recipe for plaster of Paris?

Answer

Making plaster of Paris at home is as easy as mixing flour and water. While plaster of Paris can be bought at a craft or hobby store, sometimes it is just more fun to make it at home.

Plaster of Paris is made with the combination of warm water and calcium sulphate hemihydrate. The main ingredient in homemade plaster of Paris is still water, but substitute in flour instead of calcium sulphate hemihydrate.

  • Warm 2 cups of water and slowly stir in 3 cups of white all-purpose flour. Continue stirring to remove any lumps, until the mixture has a smooth pudding texture.
  • Quickly pour the plaster into the mold, and tap the bottom of the mold against a flat surface to encourage any air bubbles to rise.
  • Smooth the surface with a wooden spoon or Popsicle stick. The mixture will begin to harden immediately, so it is important to rinse any tools and wash hands before it becomes difficult to remove.
  • Allow the mold to sit in a warm area to dry overnight.
This same recipe can be used to make sidewalk chalk, except the mixture should be poured into smaller molds, with a few drops of food coloring stirred in to each container. Once the plaster is dry, the chalk is ready for use.

Q&A Related to "What is a homemade recipe for plaster of Paris..."
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
http://www.ehow.com/how_5602252_make-homemade-plas...
You can not actually make Plaster or Paris because it is taken from the ground and modified. However, you can make a mock version of it with flour and water. You simply take two cups
http://wiki.answers.com/Q/What_is_recipe_to_make_p...
Use 2 to 3 cups of white flour with 1 to 2 cups of warm water.Mix the flour
http://www.chacha.com/question/what-is-the-recipe-...
Take some calcium sulfate (gypsum) and roast it at 212 to 374 degrees Fahrenheit. Here is loses three quarters of its water of crystallization and becomes the familiar plaster of
http://answers.yahoo.com/question/index?qid=200801...
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