K-FILM® ZPTC dispersion is a higher viscosity, fine particle dispersion specifically formulated so as to not discolor due to interactions with various elements that can be present in some paint formulations. K-FILM ZPTC is a ready-to-use, white to off-white colored aqueous suspension for effective Dry film biocidal efficacy with potent antimicrobial activity against fungi and bacteria as well as activity against algae.