Protect surfaces and prevent mold-related issues with Zinsser Mold Blocking Primer Spray Paint. This oil-based, EPA-registered formula is designed to cover, seal, and block existing mold, mildew, moss, fungi, and odor-causing bacteria—while also preventing future growth. Ideal for use in high-moisture areas, it effectively blocks stains and odors without the need for extensive pre-cleaning.

Drying in just 30 minutes, this professional-grade primer is perfect for both indoor and outdoor use. Whether you're a homeowner tackling basement walls or a facilities manager addressing maintenance needs, Zinsser provides reliable protection with long-lasting results.

• Blocks and prevents mold, mildew, fungi, moss, and odor-causing bacteria
• EPA registered for proven performance and safety assurance
• Fast-drying—can be top coated 30 minutes after application
• Oil-based formula; cleans up with mineral spirits
• No extensive surface prep required before use
• Seals in stains and odors for a clean, fresh finish
• Ideal for residential, commercial, and maintenance applications