Item: 221726

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

Type X very high impact-resistant interior glass-mat panels with moisture and mold resistance.

Available Product Options

Thickness: 5/8 inch


High performance interior panels, offering greater surface indentation and impact damage than standard gypsum panels
heetrock® 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. These 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 KB


  • Anti Mold & Mildew Resistance Yes
  • Fire Resistance
    • Fire Rating Firecode
  • Thermal Resistance No
  • ASTM Classification ASTM C1396; ASTM C1629; ASTM D3273-10


  • GREENGUARD Certification Yes

Physical Data

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

Documents & Files

Submittal Sheets & Specifications

White Papers

Catalogs & Brochures

Design Files

Installation & Technical Manuals

SDS, Certifications & Reports