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No. 1 Casting Plaster

Sets the industry standard for a lightweight, economical, bright white plaster.

Key Documents & Design Files


Sets the industry standard for a lightweight, economical, bright white plaster. Ideal for hollow and solid casting applications to create figurines, moldings and plaques.

Main Features

No. 1 Casting Plaster is the industry's premier casting plaster for fabricating figurines, plaques and lamp bases. Similar to White Art Plaster, but with slightly higher chip-resistance and reduced paint absorption,No. 1 Casting Plaster
  • Is stark white in color; smooth-working
  • Features proprietary additives that minimize paint absorption
  • Offers a hard-working surface
  • Is available in 20 and 30 minute set times
  • Requires 65 parts water by weight per 100 parts plaster.
NOTE — For best storage results, keep indoors in a dry, stable environment. Do not stack more than two pallets high.

Documents & Files

Submittal Sheets & Specifications

Submittal Sheet (English) PDF 232.4 KB

Catalogs & Brochures

System Catalog (English) PDF 4.3 MB
Brochure (English) PDF 416.6 KB

Installation & Technical Manuals

Installation Guide (English) PDF 751.4 KB

SDS, Certifications & Reports

SDS (English) PDF 173.0 KB
SDS (Spanish) PDF 120.6 KB

Ask a question

Our customer support team will get back to you within 48 hours

Question Guidlines

  • Questions should relate to this product specifically.
  • For help with pricing, availability, or delivery, please call 800.874.4968 (Monday–Friday, 7am–6pm Central)
  • All questions and answers follow USG’s Terms & Conditions.
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q & a

  • What is consistency?

    Consistency is defined as the number of parts of water, by weight, required to produce slurry of specified fluidity when mixed with 100 parts of plaster by weight. Consistency is product specific, but generally, the lower the water addition, the thicker or less flowable the slurry will be. The more water you add, the “looser,” more free flowing the slurry will be. As consistency increases the strength decreases.

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  • Need help right away?

    Call our Technical Support team at 800-874-4968 (Monday-Friday, 7am-6pm Central).