CRC Moulding Plaster

CRC Moulding Plaster

CRC Moulding Plaster is certified to contain no less than 90% recycled content. Arcosa Specialty 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

For a complete list of Safety Data Sheets, Product Documents, and other support documents, CLICK HERE

For More Information

For more information or how to purchase, please contact:

U.S. & Canada
Carl Buchanan
(864) 469-3113 (Office)
(470) 539-1615 (Cell)

National Sales Manager
Cole Sisco
(405) 366-9526 (Office)
(580) 695-0363 (Cell)

Arcosa Specialty Materials provides plaster solutions
for companies around the world.