Revolutionizing Marine Coatings with Electrostatic Technology
In a significant leap for the marine industry, electrostatic coating application (ESTA) is transforming how vessels are coated, enhancing sustainability and efficiency. Originating from a Dutch shipyard family background, Bert Adema, a business development manager at PPG, recounts his journey back to the marine sector. His collaboration with shipyards in the Netherlands and Israel has led to successful trials and the widespread adoption of ESTA, marking a pivotal shift in marine coating practices.
The Catalyst: A Vision for Sustainable Innovation
The journey towards implementing ESTA began with an unexpected request from a Dutch team led by a former astronaut. They were developing a hydrogen-powered sailing vessel and sought a sustainable coating solution that would minimize material waste. This request sparked curiosity and prompted trials of electrostatic application in a semi-sheltered outdoor setting at a small shipyard in the Netherlands. The initial tests, captured on a shaky phone video, ignited discussions within PPG and ultimately garnered support from leadership for a more formal exploration of ESTA.
As trials progressed, extensive coordination among engineers, applicators, suppliers, and shipyard managers became essential. The team adapted application techniques and documented environmental conditions to ensure consistent performance. Despite skepticism from some quarters, the first orders for applying premium hull coatings on large commercial vessels validated ESTA’s potential. This marked a turning point, confirming that ESTA was no longer an experimental technique but a scalable solution poised to redefine industry standards.
Measurable Benefits and Real-World Applications
As ESTA transitioned from concept to practice, it began delivering tangible benefits for ship owners and shipyards. While not suitable for every project, when applicable, ESTA offers significant advantages over traditional airless application methods. These include improved control over film thickness, reduced overspray, and a cleaner working environment. Shipyards have reported up to 50% reductions in coating overspray, leading to time savings during docking due to less masking and cleanup required.
PPG confirms 40 per cent reduction in coating overspray using electrostatic application
A notable case study at EDR Antwerp Shipyard exemplifies these benefits. By applying electrostatic coatings to the underwater hull of the Ro/Ro passenger vessel Stena Transporter, the yard achieved a remarkable 40% reduction in overspray. The advanced marine coating used was specifically designed for electrostatic application, resulting in less paint waste and a cleaner dock area. Philippe Trouillard, commercial manager at EDR, highlighted the efficiency of the electrostatic process, noting how charged paint droplets are attracted to the vessel’s surface, minimizing environmental impact.
Furthermore, ESTA has improved working conditions for applicators. The reduced airborne material and lower emissions contribute to a safer and more comfortable application experience. As shipyards continue to explore electrostatic methods, the marine coatings industry is witnessing a transformative shift towards precision, operational efficiency, and sustainability. The future of ESTA hinges on ongoing collaboration within the marine sector, as industry stakeholders work together to redefine what is possible, one vessel at a time.
