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Thursday, 04 June 2020
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Raw materials & technologies, Raw materials, Coatings additives

Antifouling effects of enzymes in coatings

Monday, 11 January 2010

The use of enzymes is an alternative for biocides in antiflouling coatings with unwanted adverse effects for marine coatings.

The results of the antifouling acitvity of enzymes will be presented at the ECC "Marine Coatings II"

The results of the antifouling acitvity of enzymes will be presented at the ECC "Marine Coatings II"

At present antifouling coatings containing toxic biocides and heavy metals are in use on ships and installations in the marine environment. Unwanted adverse effects of the biocides such as toxicity to non-target organisms, imposex in gastropods and increased multiresistance amongst bacteria have been observed. Therefore new alternative methods are needed. The use of enzymes could be a solution. Fouling organisms use biological adhesives in their initial attachment. A way to disrupt these adhesives is by using hydrolytic enzymes to degrade essential compounds in the adhesives. Knud Allermann will present the results of the antifouling activity both in laboratory tests and field tests on panels, yachts and ships at the European Coatings Conference "Marine Coatings II" in Berlin on 9-10 February.

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