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Item: 221710

Sheetrock® Brand Glass-Mat Panels Mold Tough® Firecode® X

5/8 in. (15.9 mm) Type X interior glass-mat panels engineered to be resistant to moisture and mold in interior pre-dry-in applications

Available Product Options

Thickness: 5/8 in.

Width: 48 in.

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Sheetrock® Brand Glass-Mat Panels Mold Tough® Firecode® X (UL Type SGX) are 5/8 in. (15.9 mm) Type X panels with moisture and mold resistance. The panels feature a noncombustible, moisture- and mold-resistant gypsum core that is encased in a moisture- and mold-resistant green face and back fiberglass mat, and are warranted for extended weather exposure. When tested in accordance with ASTM D3273, the panels meet or exceed ASTM C1396 specifications. The panels are UL Classified for fire resistance and can be used in any UL Design in which Type SGX panels are listed.

Main Features

  • Suitable for use in pre dry-in applications of wallboard before the building envelope is fully enclosed
  • For use in interior applications where glass-mat gypsum panels are desired
  • When tested in accordance with ASTM D3273, the panels score a 10 (highest)
  • Feature an inorganic fiberglass face and back
  • Guaranteed for three years against manufacturing defects and have a 12-month limited-exposure warranty
  • Comply with ASTM C1396 specifications for 5/8 in. (15.9 mm) Type X gypsum wallboard
  • UL Classification as to fire resistance, surface-burning characteristics and noncombustibility
  • Achieved GREENGUARD Gold Certification and qualifies as a low VOC emitting material (meets CA 01350)


Submittal Sheet PDF 604.7 KB


  • Mold & Mildew Resistance Yes
  • Fire Resistance
    • Fire Rating Type X
  • ASTM Type ASTM C1396; ASTM C1658; ASTM D3273


  • GREENGUARD Certification Yes

Physical Data

  • Thickness (in.) 5/8
  • Color White
  • Edge Tapered Edge
  • Panel Size 48 in. x 8-12 ft.

Documents & Files

Data/Submittal Sheets & Specifications

Data/Submittal Sheet (English) PDF 604.7 KB
Architectural Specification (English) DOCX 126.3 KB

Catalogs & Brochures

System Catalog (English) PDF 12.7 MB
Brochure (English) PDF 3.9 MB

Installation & Technical Manuals

Installation Guide (English) PDF 478.7 KB

SDS, Certifications & Reports

SDS (English) PDF 164.7 KB


Warranties (English) PDF 124.7 KB

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q & a

  • Are wallboard panels tested for mold reistance?

    Yes. Per ASTM D3273, "Standard Test Method for Resistance to Growth of Mold on the Surface of Interior Coatings in an Environmental Chamber," the following panels achieved a score of 10:

       • Sheetrock® Brand Glass-Mat Panels Mold Tough®
       • Sheetrock® Brand Gypsum Liner Panels
       • Sheetrock® Brand Mold Tough® Gypsum Liner Panels

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