Zinc PYRION™ and Sodium PYRION™ are extremely effective, pyrithione-based antimicrobial additives that inhibit the growth of a broad spectrum of fungi (yeast and mold), algae, and gram-positive and gram-negative bacteria in antimicrobial paints and coatings. Janssen's PYRION™ antimicrobials provide protection against staining, unpleasant odors, and the degradation of the paint or coating surface. Zinc PYRION™ is available in powder and water-dispersed form. Sodium PYRION™ is water-soluble and is available as a 40% solution in water.

Dry-Film Protection

Dry paint and coated surfaces are susceptible to antimicrobial activity from fungi and algae that can deteriorate and reduce the aesthetic look of paints and coatings. Zinc PYRION™ is an effective dry-film preservative that is easy to use and stable at high pH and high temperatures, shows low solubility in water and organic solvents, and is low leaching to provide long-term antimicrobial protection.

In-Can Protection

Water-based paint, while still in the can, is an easy target for bacterium and other microbial growth. Microorganisms that grow in water-based paints and coatings can cause foul odors, gassing, discoloration, breakdown of the emulsion, gelling, and pH changes while paint is being stored and transported. Zinc PYRION™ and Sodium PYRION™ are effective antimicrobial components of biocide blends used for in-can preservation.