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Kopthione Zn 40 (Zinc Pyrithione 40% FPS)

Kopthione40% FPS is a stable extremely low particle size aqueous dispersion of Zinc Pyrithione for the complete protection of all types of paints and coatings from all types of microbial attack. Kopthione 40% FPS has broad spectrum of efficacy against algae, bacteria and fungi.

Product Information:

Composition:A stable water-based dispersion of Zinc Pyrithione (Zinc 2-pyridinethiol-1-oxide)

Appearance:Off white dispersion

Odour:Nearly odourless to mild

Zinc Pyrithione:38 to 40%

Density (250C):1.35 to 1.45 g/cm3

Solubility:Sparingly soluble in water and most organic solvents

Stability in product:Light stable, stable in the pH range 4-10


Kopthione 40% FPS is highly recommended for the protection against fungal attack on interior coating and paints.

For complete control of algae on exterior painted surfaces and facades use of Diuron along with Kopthione 40% FPS is highly recommended.

Kopthione 40% FPS offers good wet state protection against bacterial spoilage , however it is advised to carry in house experiments to rule out use of additional in-can preservative.


Optimum use concentrations will depend on the required properties. Normal addition levels are in the range 1 to 2.5%

Antimicrobial efficacy:

Kopthione 40% FPS possesses a broad spectrum of antifungal and antialgal activity against all fungi and algae including following relevant organisms.

Typical profile of the microorganism attacking exterior painted surface

Name of Microorganism:


Escherichia Coli

Micrococcus luteus

Proteus Vulgaris

Pseudomonas aeruginosa


Candida albicans

Saccharomyces cerevisiae


Lynbyaba sp



Nostoc commune

Pleurococcus sp.

Scenedesmus sp.

Anabaena sp.


Trebouxia sp.


Alternaria alternate

Aspergillus niger


Aureobasidium pullulans

Chaetomium globosum

Cladosporium sp.

Fusarium sp.

Pacillomyces sp.

Addition and compatibility:

For optimum and uniform mixing Kopthione 40% FPS should be added during the early stages of production preparation preferably after the addition of all extenders of the paint recipe. It is compatible with most formulations in which its application is recommended. However, users are advised to carry out with their own tests.

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Kumar Organic Products Limited

Corporate Address : 819/C, 13th Cross, 7th Block, Near JSS College Circle, Jayanagar, Bangalore, Karnataka, India. – 560082.

Reg. Office : Usha Krishna Towers, Plot 36-B, Road No.3 & 5, Jigani Industrial Area, Anekal Taluk Bangalore -560105, Karnataka.

CIN: U85110KA1991PLC012095

Email: kop@kumarorganic.net

+91-80-41425832, 41525960

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