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No. 1 Pottery Plaster

A superior plaster for casting decorative ceramicware, sanitaryware, dinnerware and fine china.

Overview

A superior plaster for casting decorative ceramicware, sanitaryware, dinnerware and fine china. Available with or without thermal shock additive.

Main Features

No. 1 Pottery Plaster produces a break-resistant, smooth wearing mold designed for slip casting and jiggering applications. No. 1 Pottery Plaster:
  • Is formulated to provide stronger, longer-lasting ceramic slip cast molds
  • Is the industry standard for sanitaryware and dinnerware casting
  • Has a recommended use consistency by weight of 70 parts water to 100 parts plaster
  • Has a standard machine mix Vicat set of 14-24 minutes.
NOTE — For best results, store indoors in a dry, stable environment, away from drafts. Do not stack more than two pallets high.

Documents & Files

Data Sheets & Specifications

Data/Submittal Sheet (English) PDF 232.4 KB

Catalogs & Brochures

System Catalog (English) PDF 4.3 MB
Brochure (English) PDF 613.4 KB

Installation & Technical Manuals

Installation Guide (English)

SDS, Certifications & Reports

SDS (English) PDF 115.6 KB
SDS (Spanish) PDF 102.9 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.
  • Your question and USG’s answer may be posted to this page in the future, but none of your personal info will be included.

q & a

  • How do I mix plaster?

    You will need a bucket, scale and mixing equipment. Mixing could be accomplished through basic hand mixing with a large spoon, but mechanical mixing is preferred. An electric drill with a cage mixer head attached is good for small batches.

    The first step involves measuring and adding enough water to the bucket to achieve the desired consistency. You then need to weigh out enough gypsum plaster to meet the proper ratio for the selected water volume. Sift the plaster into the bucket of water and allow the plaster to soak for 1 to 2 minutes. Follow this immediately with mixing, generally for 1 to 2 minutes based on product.

    NOTE: If mixing by hand, use vigorous stirring action. After mixing and pouring the gypsum slurry, make sure to clean all tools and the mixing vessel before the plaster hardens.

    For more detail on mixing, see USG publication IG503, Plaster Mixing Procedures.

  • Have a question?

    Let us do research and get back to you (usually within 48 hours).

    Ask USG
  • Need help right away?

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

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