GAIA Antimicrobial AB 505 is a concentrate that helps to control or retard the growth of bacteria, fungus, and algae in plastic molded parts. AB 505 is a powerful additive concentrate produced in an LLDPE carrier for ease of dispersion. This product has been used in film, injection molding, and extrusion applications to control microbial growth. A loading of 1.5 - 5.0% will protect plastic articles for an estimated 1-2 years.