Antifouling Coating

- Jun 24, 2019-

Antifouling coatings are coatings used to prevent sea creatures from adhering, eroding, and fouling, and to maintain water-immersing structures such as ships, docks, and sonar. It consists of paints, poisons, pigments, solvents and additives. Applying on the rust-preventive primer, it slowly oozes out with the poison in the coating, forming a toxic surface layer on the surface of the coating film, and killing marine organisms such as barnacles, limestone, etc. attached to the coating film. [1] Antifouling coatings can be divided into: contact type, additive type, diffusion type, self-throwing type, mainly used in anti-fouling projects such as ships, marine structures and pipelines in seawater and fresh water.

[2] Marine biofouling is ubiquitous in the marine environment and is the most important problem facing the shipping industry. According to research, there are as many as 2000 common marine fouling organisms. The most common ones are algae, leeches, barnacles, oysters, etc. Their attachments cause great harm to ships and marine facilities, which seriously hinders the development of the marine economy. The attachment of marine organisms can lead to increased hull weight and navigation friction, increased power and fuel consumption, blockage of marine pipelines, and failure of marine instruments. Marine transportation costs have quadrupled in the past three decades, causing serious losses to world trade and seaborne trade.

 [3] So far, coating marine antifouling coatings is still the most economical and effective measure to prevent the attachment of marine organisms. Therefore, the bottom of the ship needs to be coated with antifouling paint.

Our company produced Cybutryne is a triazine herbicide used in antifouling paints on boat hulls with increasing popularity since the restriction of the use of tributyltin. Cybutryne has a very similar mode of action to other triazines in that exposure reduces plant photosynthetic ability.