CRC Moulding Plaster2017-10-03T15:28:34+00:00

CRC Moulding Plaster

CRC Moulding Plaster is certified to contain no less than 90% recycled content. ACG Materials has partnered with UL Environment as a third party inspection agency to certify and audit the recycled claims in this formulation. For more information on certified green products, visit UL Environment at

Moulding Plaster, commonly referred to as “Plaster of Paris”, is a beta-hemihydrate gypsum product manufactured from high purity natural occurring white gypsum rock.

It is commonly used as a good white base material for formulating various interior oriented construction & industrial compounds, for simple 3-D statuary, architectural castings, and temporary templates where strength and hardness are not important.


  • Use Consistency – 64-70cc/100g
  • Set Time – 27-37 minutes
  • Maximum Expansion (%) – 0.30%
  • -100 Mesh – 98.5 – 100% passing
  • +50 Mesh – 0% retained
  • Dry Compressive Strength – 2,000 psi

Plaster and water are always measured by weight. Using a plaster/water ratio outside the recommended use consistency guidelines will impact the set-time, strength and density of the finished piece.

  • Sift plaster into water slowly and evenly.
  • Let soak for 2 – 4 minutes. This allows the gypsum crystals to wet-out, displacing trapped air.
  • Mix for 2 – 5 minutes


The UL Environment recognition reinforces the credibility of sustainable product claims through our robust certification, validation and testing services, helping our customers support their sustainability stories in ways that are meaningful to—and differentiating for—their organizations and their target markets.

Support Documents

Safety Data Sheet (SDS) for CRC Moulding Plaster

Safety Data Sheet
Safety Data Sheet

Product Data Sheet for CRC Moulding Plaster

Product Data Sheet
Product Data Sheet

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ACG Materials produces plaster products that are used by the world’s top manufacturers.