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  2. Plaster mold casting - Wikipedia

    en.wikipedia.org/wiki/Plaster_mold_casting

    The plaster is not pure plaster of Paris, but rather has additives to improve green strength, dry strength, permeability, and castability.For instance, talc or magnesium oxide are added to prevent cracking and reduce setting time; lime and cement limit expansion during baking; glass fibers increase strength; sand can be used as a filler. [1]

  3. For Your Next Sculpture Project, Use the Best Plaster for ...

    www.aol.com/next-sculpture-project-best-plaster...

    A common casting medium, plaster is also a popular pick for making molds. Using this substance, which is manufactured in powder form, is ideal when you want a rigid structure to make casts as an ...

  4. Plaster - Wikipedia

    en.wikipedia.org/wiki/Plaster

    Stucco plaster reliefs, such as this work at the Château de Fontainebleau, were hugely influential in Northern Mannerism. A plaster low-relief decorative frieze is above it. Plaster is a building material used for the protective or decorative coating of walls and ceilings and for moulding and casting decorative elements. [1]

  5. Glossary of sculpting - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_sculpting

    Hydrocal is a US Gypsum product composed mainly of plaster of Paris and a small amount of Portland cement. Hydrocal, like its similar formulas Hydrostone, Ultracal, Duracal and others are all used for casting sculptures and other art objects as well as molds.

  6. Gypsum block - Wikipedia

    en.wikipedia.org/wiki/Gypsum_block

    A gypsum block is made of gypsum plaster and water. The manufacturing process [1] is automated at production plants where raw gypsum (CaSO 4 ·2H 2 O) is ground and dried, then heated to remove three-quarters of the bound water and thus transformed into calcium sulfate hemihydrate (CaSO 4 ·½H 2 O), also known as gypsum plaster, stucco, calcined gypsum or plaster of Paris.

  7. Plasterer - Wikipedia

    en.wikipedia.org/wiki/Plasterer

    A plasterer is a tradesman who works with plaster, such as forming a layer of plaster on an interior wall or plaster decorative moldings on ceilings or walls. The process of creating plasterwork, called plastering, has been used in building construction for centuries. A plasterer is someone who does a full 4 or 2 years apprenticeship to be ...