Kowa American Corporation


Anti-Microbial Agent

ZEOMIC is the world’s first silver-based inorganic agent developed in 1983. The toxicity to human cells is considerably lower than to bacteria allowing ZEOMIC to inhibit bacterial growth in a variety of applications like inks, paints & coatings, adhesives & sealants, and many more applications while boasting excellent safety, life of efficacy, and high heat resistance.

Silver has a long history of use and been well-known since ancient times as an antimicrobial material. It has considerably more antimicrobial activity in the ion state but this state is rather unstable. To maintain stability, ZEOMIC combines the safety of silver ions with an inorganic carrier, zeolite (ingredient for detergent, adsorbent, medicine for cattle, etc).


Appearance: White fine powder, odorless
Absolute Specific Gravity: 2.1 (-)
Bulk Specific Gravity: 0.4-0.8 (g/cm3)
Heat Resistance: 800 °C
Acid Resistance: pH3
Alkali Resistance: pH13
Mean Diameter: 2-3 µm (general grade)
pH (1 wt% water): 8.0+/- 1.0 (insoluble in water)


  • Anti-microbial


  • Additive