Zinsser Mold Killing Primer, 1 qt.

Achieve a cleaner, healthier surface with Zinsser’s Mold Killing Primer. This EPA-registered, water-based primer is specially formulated to eliminate existing mold, mildew, moss and odor-causing bacteria, then prevent their return. Ideal for both interior and exterior projects, it creates a tough, mildew-resistant foundation that’s perfect for high-humidity areas like bathrooms, basements and exterior siding.

Whether you’re refreshing walls in a damp basement or prepping exterior masonry, Zinsser Mold Killing Primer delivers fast drying, excellent adhesion and long-lasting protection—so your topcoat looks better and lasts longer.

Key Features

• EPA-registered antimicrobial formula kills mold, mildew, moss and odor-causing bacteria
• Prevents future growth on the paint film for durable, long-term protection
• Water-based, low-odor formula for easy application and cleanup with soap and water
• Suitable for interior and exterior use on wood, drywall, plaster, masonry and metal
• Dries to the touch in 30 minutes; ready for a topcoat in one hour
• Covers up to 112.5 sq ft per quart

⚠️ WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.