How to Reconstitute Plaster of Paris

Written by kelly sundstrom
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How to Reconstitute Plaster of Paris
You can reconstitute plaster of Paris to use it again. (Head of plaster 2 image by Pontus Edenberg from Fotolia.com)

Plaster of Paris can be used to create a wide variety of arts and crafts projects such as sculptures, castings and moulds. Often, plaster of Paris is costly and is usually only used once. Fortunately, there is a way to reconstitute used plaster of Paris, enabling you to reuse it again and again. To reconstitute plaster of Paris effectively, it is important to follow a few necessary guidelines that will ensure that the plaster will reconstitute properly.

Skill level:
Easy

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Things you need

  • Plaster of Paris sculpture
  • Dust mask
  • Protective goggles
  • Rubber gloves
  • Rough-grain sandpaper
  • Bowl
  • Spoon
  • Water

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Instructions

  1. 1

    Put on a dust mask, rubber gloves and protective goggles to protect your lungs, skin and eyes from the plaster of Paris dust.

  2. 2

    Place a large bowl underneath your plaster sculpture.

  3. 3

    Hold your plaster of Paris sculpture in one hand, and use the other hand to rub rough-grain sandpaper over the sculpture. Use small, circular motions with the sandpaper.

  4. 4

    Move the sandpaper around the plaster so that the grains effectively grind down the plaster into usable plaster of Paris powder.

  5. 5

    Once you have about 3 cups of plaster of Paris powder in your bowl, add 1 cup of water into it.

  6. 6

    Stir the mixture well with a spoon, and use it for your arts and crafts projects.

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