Foster 40-20 Fungicidal Protective Coating is a professional-grade, water-based coating engineered to provide long-lasting protection against mold growth and odor-causing bacteria on treated surfaces. This advanced polyacrylate copolymer emulsion is specifically formulated to deliver sustained fungicidal activity without loss of effectiveness over time, making it a reliable solution for maintaining hygienic environments.

This coating forms a tough, elastic, and decorative finish that accommodates surface movement without cracking or splitting. By maintaining a continuous, intact film, it helps prevent the formation of gaps where bacteria and mold can develop. It is particularly well suited for use in HVAC systems, where it can be applied to duct interiors and components to help control microbial growth and reduce odor issues associated with contaminated systems.

Foster 40-20 is highly versatile and can be used on a variety of substrates, including walls, ceilings, pipes, and other interior or exterior surfaces where microbial control is critical. The coating meets NFPA 90A and 90B requirements and contributes to LEED® compliance for low-emitting materials, supporting environmentally responsible building practices.

Application can be performed using brush or airless spray equipment. The coating typically sets to the touch in approximately 4 hours and dries through in about 16 hours. With its combination of durability, flexibility, and antimicrobial performance, Foster 40-20 is a dependable solution for long-term surface protection.

Key Features

• Provides long-term resistance to mold and odor-causing bacteria
• Durable, flexible coating resists cracking and surface movement
• Suitable for HVAC systems, walls, ceilings, and industrial surfaces
• Meets NFPA 90A/90B and supports LEED® low-emitting material standards