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22. Mar 2022 | Application Areas

Hydrogen peroxide formation via solar light: Novel antifouling coating

A new paper reports strong adhesion and lack of ecotoxicity of a solar-driven antifouling sol-gel coating. Test results open the route to the practical utilisation of these novel marine coatings.
Newly developed AquaSun coatings share hydrophobicity and exceptionally high scratch resistance.
Image source: jessmay - Pixabay (symbol image).

The outcomes of adhesion and ecotoxicity tests carried out on metal specimens faithfully representing the surface of real ships, including the primer and tie coat layers typically applied on ship hull prior to deposition of the antifouling paint, show the practical applicability of "AquaSun" antifouling sol-gel coatings.

Ecofriendly antifouling mechanism

Newly developed AquaSun coatings share hydrophobicity (contact angle >115°) and exceptionally high scratch resistance (ASTM 5B). Coupled to the ecofriendly antifouling mechanism based on continuous H2O2 formation upon exposure to solar light and foul release due to low surface energy, these results open the route to the practical utilisation of these novel marine coatings.

The study has been published in Progress in Organic Coatings, Volume 165, April 2022.

EC Techb Report Sustainability


EC Tech Report Sustainability

Making coating systems more environmentally compatible is a burning issue for everyone in the industry, and one that is being fuelled by the European Green Deal. Learn all you need to know about sustainable coatings, how to produce coatings in a more environmentally friendly way and how to give coated products a longer service life. You will find an overview in the EC Tech Report of the many various approaches being adopted. We will dive deep into the European Green Deal, its key points and main purpose as well as consequences for the coating industry, see which new raw materials are being developed to replace or lower the content of products in the SVHC group and learn about different approaches to sustainable paint formulation.

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