National Gypsum's 1/2 in. x 4 ft. x 8 ft. Gold Bond XP Fire-Shield C Drywall Gypsum Board also meets ASTM C1396 and ASTM C1658 standards for mold resistance, making it suitable for environments where mold prevention is critical to long-term performance. Its fire-resistant properties make it an ideal choice for fire-rated wall and ceiling assemblies, especially where code compliance and added safety are required. With its combination of lightweight construction, reliable core integrity, and high mold resistance, this gypsum board contributes to healthier indoor environments while maintaining structural performance under fire-rated conditions. Professionals value its versatility in applications where both fire and moisture concerns intersect.