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Terra Alba No. 1

The dihydrate form of calcium sulfate used in low temperature thermoset plastic and specialty cement applications.

Key Documents & Design Files

Overview

The dihydrate form of calcium sulfate used in low temperature thermoset plastic and specialty cement applications.
Often used as a flame-retarding filler when processed at room temperature.

Terra Alba No. 1 is a dihydrate form of calcium sulfate produced by fine grinding and air-separating high-purity, white gypsum containing 20% water of crystallization. It releases combined water as it is heated above 50°C, releasing 75% of water as temperatures reach 180°C (only when temperatures exceed 400°C is water totally removed).

Main Features

Terra Alba No. 1:

  • Can be used as a flame-retarding filler when processed at room temperature
  • Contributes to desired expansion, green strength and controlled set in specialty cement applications
  • Is a relatively soft material (2-3 Mohs scale hardness) contributing to minimal wear on equipment.

Documents & Files

Data Sheets & Specifications

Data/Submittal Sheet (English) PDF 194.0 KB

Catalogs & Brochures

Brochure (English) PDF 416.6 KB

Installation & Technical Manuals

Technical Guide (English) PDF 938.9 KB

SDS, Certifications & Reports

SDS (English) PDF 115.8 KB

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Question Guidlines

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q & a

  • Is USG Terra Alba No.1 approved for use in food and pharmaceutical application?

    No it is not approved for these types of application.

  • 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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