ToughRock® MoldGuard™ Gypsum Board
ToughRock® MoldGuard™ Gypsum Board. 4. A moldresistant wall board ideal for highhumidity interior residential and commercial appliions. Manufactured to meet ASTM C1396 Section 7; and Federal Specifiions SSL30D, Type VII Grade W. ToughRock® MoldGuard™ Gypsum Board is designed to provide extra protection against ...