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Item: 221726

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

Type X very high impact-resistant interior panels engineered to be resistant to moisture and mold in interior pre-dry-in (aka "pre-rock") applications

Available Product Options

Thickness: 5/8 inch

Width: 48 inch

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High-performance interior panels, offering greater surface indentation and impact damage than standard gypsum panels
Sheetrock® Brand Glass-Mat Panels Mold Tough® VHI Firecode® X offer very high impact resistance and added resistance to surface indentation and impact damage, and is an upgrade to abuse-resistant panels. This moisture- and mold-resistant panels are recommended for commercial and institutional construction where weather exposure is anticipated, and provide a lower-cost alternative to other impact-resistant systems for partitions from other construction methods.

Main Features

High-performance, very high impact-resistant (VHI) interior panels with moisture and mold resistance
  • Provide superior impact resistance and is an upgrade to abuse-resistant panels
  • Meet ASTM C1629 level 3 (highest) for hard- and soft-body impact
  • Suitable for use in pre dry-in (aka “pre-rock”) and similar applications of wallboard before the building envelope is fully enclosed
  • For use in interior applications where glass-mat gypsum panels are desired
  • Feature an inorganic fiberglass face and back
  • Install and finish similar to standard drywall
  • 5/8″ Firecode® X panel is UL Classified as to fire resistance, surface-burning characteristics and noncombustibility
  • Can be exposed to weather for up to 12 months and are guaranteed three years against manufacturing defects


Submittal Sheet PDF 645.2 KB


  • Mold & Mildew Resistance
    Contains a broad-spectrum antimicrobial additive on the face and back of the panel that provides resistance against the growth of mold and mildew. Includes sag-resistance performance.
  • Fire Resistance
    • Fire Rating Firecode®
  • ASTM Classification ASTM C1396; ASTM C1629; ASTM D3273


  • GREENGUARD Certification
    GREENGUARD Certification helps consumers choose building materials with lower VOC (volatile organic compound) emissions, which improves indoor air quality.

Physical Data

  • Thickness (in.) 5/8
  • Edge Tapered Edge
  • Panel Size 48" x 8-12'

Documents & Files

Submittal Sheets & Specifications

Submittal Sheet (English) PDF 645.2 KB

Catalogs & Brochures

System Catalog (English) PDF 12.7 MB

Installation & Technical Manuals

Installation Guide (English) PDF 478.7 KB

SDS, Certifications & Reports

SDS (English) PDF 149.7 KB


Warranties (English) PDF 139.4 KB


Product Attribute Report (English) PDF 810.1 KB
HPD (English) PDF 99.6 KB

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