New Product Announcement: Antifouling Paint Tech


Nanoporous material manufacturer Svenska Aerogel recently presented a new product that can be used in antifouling paints to reduce copper toxicity in the ocean. SeaQare is reportedly based on an amorphous, porous silica (Quartzene), which is hydrophilic and contains copper.

According to the company’s release, SeaQare acts as a carrier of copper in antifouling paints, contributing to a controlled release of copper into the water. This allows copper to be used more efficiently than in traditional antifouling paints, avoiding unnecessary copper toxicity in the water.

The product was recently presented at the International Antifouling Conference in, Sweden, by Svenska Aerogel’s Head of R&D Pernilla Ståhle.

“The new product was well received; several important market players showed great interest in the lowest release rate they had ever seen,” Ståhle said. “This means that SeaQare does not release more copper into the sea than is necessary to obtain the desired protection against fouling.”

Tested by the Research Institutes of Sweden (RISE) between June 2021 and October 2021, an antifouling paint containing SeaQare was compared to commercial antifouling paints on the market and were applied to PMMA panels. The panels were then randomly attached to an aluminum frame which was placed at the Kristineberg Center on the Swedish west coast.

The first inspection was reportedly made after two months, while the second was made after four months. Fouling was then documented at both inspections.

Svenska reports that the results showed that the paint containing SeaQare released significantly less and more even copper levels than the other paints. Competing paints caused a large release of copper, which later decreased to a steady state level. SeaQare reportedly showed an initial release that was one-tenth as large as the normal release after a week of testing.

According to the company, the test is now being repeated on the Swedish west coast. Continued testing with the product is expected to be conducted in North America waters in 2023.

“With SeaQare, we have shown that we can provide high efficacy while having a minimal amount of copper in the paint,” said Ståhle. “This is done by incorporating copper into the Quartzene’s structure, which consists of nano-sized pores with an enormous internal surface area.”


Tagged categories: Antifoulants; Asia Pacific; Coating Materials; Coatings; Coatings Technology; Coatings technology; Copper; EMEA (Europe, Middle East and Africa); Environmental Controls; Latin America; Marine Coatings; New Product Spotlight; North America; Ships and vessels; Sustainability; Svenska Aerogel; Z-Continents

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