Learn more about the The Role of Algaecides in Marine Antifouling Paints, Proven Effectiveness Of OMADINE® Fungicides-Algaecides, and Zinc OMADINE® Biocide Efficacy.
Zinc OMADINE® Biocide Efficacy
Using a published US Navy antifouling paint formulation* as a guide, we prepared a series of prototype paints containing combinations of zinc OMADINE® biocide and cuprous oxide. Painted panels were immersed in the ocean at Miami Marine Research and Testing Laboratory and evaluated monthly for resistance to fouling. After exposure paints containing a combination of OMADINE® antifoulant biocide and a cuprous salt were virtually completely free of fouling. They clearly outperformed all others tested, including commercial controls and the US Navy formulation.
* MIL-P-15931, Formula 121, vinyl resin, rosin, and cuprous oxide.
Immersion testing was conducted at Miami Marine Research and Testing Laboratory (Biscayne Bay, Florida). Panels were coated with paints containing: 1) no biocide; 2) 56% cuprous oxide with wood rosin 3) 55% cuprous oxide and 5% zinc OMADINE®. These photos are after 20 months of testing.
After panel testing it is important to evaluate your coating on a boat. Here is a picture of a Australian Navy vessel that was tested for 4 ½ years. As you can see, the performance on the area painted with an AF paint containing zinc Omadine and cuprous oxide performed very well.
The second panel to the left contains Arch's zinc Omadine.
The final test is commercial use. Here is a cruise ship in dry-dock.
After 24 months it shows excellent polishing and performance with an antifouling paint containing zinc Omadine.
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