How must a painter treat mold found on an existing gypsum board before repairing it?

• A. Apply a general household cleaner.
• B. Use a standard paint remover.
• C. Wipe with water and allow to dry.
• D. Apply a specific anti-mold agent to safely remove the mold.

Answer: (D)

Mold must be killed and its regrowth prevented before any repair. A product formulated specifically to treat mold on building materials contains fungicidal ingredients that penetrate and neutralize mold spores, reducing the chance of return. After applying it, the surface should dry completely and, if the mold has penetrated the gypsum board, the affected section may need to be removed and replaced to prevent trapped moisture and hidden contamination. General household cleaners don’t kill mold effectively, wiping with water can spread spores, and a standard paint remover isn’t designed for mold remediation. Using the anti-mold agent ensures the area is properly prepared for repair and painting.