Foster First Defense 40-80 Disinfectant

40-30 Fungicidal Coating (black) is an EPA registered coating that prevents the spread of odor-causing bacteria and mold on its surface with long-term activity. When applied to fibrous duct liner insulation, it prohibits air erosion and fiber release. Similar to Foster 40-20, this black coating is ideal for fiberglass duct liners, duct board insulation and galvanized surfaces. Manufacturers suggested coverage rate: 100 sq. ft. per gallon.