Densil C500 2,4,5,6-Tetrachloroisophthalonitrile Avecia Preservative >> Biocide, Film protection Coatings >> Solventborne Coatings >> Waterborne Architectural / Decorative >> Interior Architectural / Decorative >> Exterior Wood & Furniture Coatings >> Stains DENSIL TM C500 universal dispersion of 2,4,5,6- tetrachloroisophthalonitrile (Chlorothalonil) that is intended to be used as a point-of-sale post-add fungicide to boost the fungicidal protection of the dry film. DENSIL C500 is designed for use in both water-based and solvent-based, interior and exte-rior, architectural paints, stains and coatings. The active ingredient in DENSIL C500, Chlorothalonil, has been known for years as a broad spectrum film fungicide for providing long-term protection against fungal and mildew defacement. Chlorothalonil is a multi-site protective fungicide. The mode of action is the binding of the active molecule to the glutathion moiety, thus preventing completion of the energy cycle of the fungal species, and ultimately controlling fungal growth. Unlike many other systemic fungicides, this is not a site specific activity. Hence, there is no known resistance to the fungal control. DENSIL C500 is a broad spectrum, highly effective fungicide for controlling fungus, mold and mildew. Broad spectrum, highly effective, dispersion of 2,4,5,6-tetrachloroisophthalonitrile. Used as a point-of-sale post-add fungicide to boost fungicidal protection of dry film for water-based and solvent-based, interior and exterior, architectural paints, stains and coatings. Provides long-term protection against fungal, mold and mildew defacement.