Sentinel 24-7 ZERO HVAC Mold & Mildew Resistant Coating is a professional-grade protective solution designed for use inside HVAC systems, on insulation, and on primed or galvanized metal surfaces. Engineered to improve indoor air quality and system performance, this specialized coating seals surfaces against odors caused by smoke, mold, mildew, and other contaminants commonly encountered in ductwork and air handling environments. Its low-VOC, low-odor formulation supports comfort and safety during application, making it suitable for occupied commercial and residential spaces where strong smells are not acceptable.

The flexible, thickened coating bridges and reinforces duct liner and board insulation while inhibiting microbial growth on the dried surface, helping extend the life of HVAC components and reduce biological buildup. Sentinel 24-7 ZERO HVAC dries quickly and recoats in a matter of hours, delivering efficient project turnaround with dependable coverage — approximately 100–200 sq ft per gallon on smooth surfaces and 80–100 sq ft per gallon on porous surfaces.

This coating meets industry requirements for low emissions and mold resistance, including NFPA 90A/90B compliance, and contributes to improved airflow and cleaner duct interiors. It also meets LEED IEQ Credit 4.2 for low-emission materials, aligning with sustainable building practices. Whether you’re updating HVAC systems for improved indoor air quality or completing maintenance in commercial facilities, Sentinel 24-7 ZERO HVAC offers long-lasting protection with minimal environmental impact.

Key Features:

• Low-VOC, low-odor coating formulated for HVAC environments
• Inhibits mold and mildew growth on cured surfaces
• Flexible formula bridges duct liners and insulation
• Efficient coverage on both smooth and porous surfaces
• Meets NFPA and LEED low-emission standards