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Item: 181715

Sheetrock® Brand UltraLight Gypsum Base Imperial®

The industry's first and lightest 1/2 in. (12.7 mm) gypsum base for veneer plaster

Key Documents & Design Files

Available Product Options

Thickness: 1/2 in.

Width: 54 in.

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Sheetrock® Brand UltraLight Gypsum Base Imperial® are the industry's first and lightest 1/2 in. (12.7 mm) gypsum base for veneer plaster available. These panels feature a distinctive 100% recycled blue face paper that is ideally engineered for the application of veneer plaster, controlling water absorption, providing a strong plaster bond and resisting plaster slide or slip under the trowel. The panels also provide a rigid base that resists sag, and are designed to be used with the following plaster products: Imperial® Brand Veneer Finish, Diamond® Brand Veneer Finish, Apex® Brand Veneer Finish, Norfolk Special Veneer Finish, Imperial® Brand Veneer Basecoat and Diamond® Brand Veneer Basecoat.

Main Features

  • The industry's first and lightest 1/2 in. (12.7 mm) gypsum base for veneer plaster
  • Special multilayered face paper to optimize water absorption and provide maximum plaster bond
  • Rigid core that resists sag
  • Comply with ASTM C1396, Standard Specification for Gypsum Board, for1/2 in. (12.7 mm) gypsum base for veneer plaster
  • Achieved GREENGUARD Gold Certification and qualifies as a low VOC emitting material (meets CA 01350)


  • Single-Family Residential


Submittal Sheet PDF 293.4 KB


  • Mold & Mildew Resistance No
  • Fire Resistance
    • Fire Rating Regular
  • ASTM Type ASTM C1396


  • GREENGUARD Certification Yes

Physical Data

  • Thickness (in.) 1/2
  • Color White
  • Edge Tapered Edge
  • Panel Size 54 in. x 12 ft.
  • Nominal Weight 1.25-1.35 lb./sq. ft.

Documents & Files

Data/Submittal Sheets & Specifications

Data/Submittal Sheet (English) PDF 293.4 KB

White Papers

Sell Sheet (English) PDF 2.7 MB

Catalogs & Brochures

System Catalog (English) PDF 20.5 MB

SDS, Certifications & Reports

SDS (English) PDF 160.3 KB
SDS (Spanish) PDF 167.7 KB

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