The attachment of marine fouling organisms is harmful to any marine structure such as ship hulls, fishing nets, jetties and platforms. Marine antifouling coating is still the widely commercial used solution for marine antifouling in shipping industry. It is necessary to evaluate the antimicrobial and antifouling performances of marine antifouling coating before formal use. Assessment methods of antimicrobial and antifouling performances are investigated in this study. Based on the antifouling mechanism, flat colony counting test, crystal violet staining test, diatoms static fouling test and diatoms dynamic fouling test are chosen for the laboratory test. With reference to some standards on shallow submerging test for marine antifouling panel, the deficiencies of the current evaluation method are discussed and the corresponding solution is then proposed. The appropriate proportion of the evaluation scale is divided according to the different influences on the antifouling property of the biofouling, and the monomer fouling is selected as the main evaluation scale. A novel calculation method of Fouling Resistance can be proposed and compared with ASTM and SAC standard. An effective assessment system for antimicrobial and antifouling performance of marine antifouling coating is proposed and validated by cases.
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