Mold Defense®
Type X

Mold Defense Type X is a gypsum board enhanced with glass fibers to provide greater strength and fire protection for interior walls and ceilings.


Continental Mold Defense® Type X is a gypsum board enhanced with glass fibers to provide greater strength and fire protection for interior walls and ceilings. It provides enhanced protection against mold and mildew, both of which can cause material deterioration and staining.

The board has a noncombustible, mold, mildew, and moisture-treated gypsum core and treated paper facings are the keys to the success of Continental Mold Defense Type X.

Continental Mold Defense Type X's extensive properties allow it to be used in a variety of applications and environments. Its moisture resistance allows it to be used in tile backer applications in dry areas or in areas where moisture may be expected, such as bathrooms and laundry rooms if permitted by local building codes.  It can be used in applications that require direct mechanical attachment to wood or metal wall and ceiling frames, or attachment to existing surfaces using fasteners or adhesives.

Continental Mold Defense Type X may also be used as a thermal barrier in roof assemblies when specified by the roofing manufacturer.

Installation Recommendations

When used in a certified sound-rated assembly, Mold Defense Type X will also contribute to required Sound Transmission Class (STC) values.

Recommended installation procedures should be followed in order to ensure optimal fire-resistant performance.

Type X accommodates a variety of decorative treatments after proper surface preparation.


Low installation cost: Mold Defense Type X installs quickly and easily. It cuts and snaps like standard drywall.

Mold resistance: Mold Defense Type X provides enhanced protection against the growth of mold and mildew.

Fire resistance: Mold Defense Type X is formulated to perform in accordance with ASTM C 1396, Section 7, Type X, and is UL labeled (Type LGFC2A).

Physical Characteristics

Core: Noncombustible, dimensionally stable, inert gypsum, enhanced with glass fibers for strength and fire resistance. Moisture-resistant wax emulsion and chemical treatment to resist mold and mildew.

Paper: 100 percent recycled paper. Water repellent and chemically treated to resist mold and mildew on the surface. Front and edges are green; back is gray.

Long edges: Tapered.

Emissions: Asbestos free; GREENGUARD certified; listed as a low-emitting material.

Sustainability: Mold Defense Type X may contribute to the U.S. Green Building Council's LEED Credit Qualification in several credit categories to assist in obtaining LEED certification. Visit for more details on specific credit contributions and documentation.


Wear safety glasses and NIOSH-approved respirators when cutting, breaking, rasping or conducting other dust-producing activities.

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