PPG has unveiled a new white paper outlining how electrostatic application technology could help ship owners and operators cut waste, improve vessel efficiency and reduce environmental impact across the marine sector.

 

The paper, Electrostatic Application of Marine Hull Coatings, explores how the technology enhances the application of marine hull coatings by electrically charging paint particles as they leave the spray gun. The negatively charged particles are attracted to the grounded vessel surface, improving coating coverage while significantly reducing overspray.

 

According to PPG, the process delivers higher transfer efficiency and a more uniform finish than conventional spraying methods. In one case study cited in the paper, the EDR Antwerp shipyard achieved a 40% reduction in overspray.

 

“Electrostatic application is a breakthrough process innovation that, combined with our chemistry innovation, delivers improved productivity and sustainability for our shipyard customers,” said Jan Willem Tegelaar, PPG global platform director, marine coatings. 

 

“It has already revolutionized the automotive and aerospace industries; building on this cross-industry expertise, we have adapted the technology and developed compatible fouling control coatings to save time and reduce waste without disrupting existing workflows for marine vessels.”

 

Beyond operational improvements, PPG said the technology can support sustainability goals by reducing paint consumption, lowering demand for raw materials and cutting emissions associated with manufacturing and transportation. 

 

The company noted that these Scope 3 lifecycle savings complement the operational carbon reductions achieved through advanced low-friction hull coatings that can help vessel operators reduce Scope 1 emissions.

 

The white paper also highlights the role of hull coatings in improving fuel efficiency. Biofouling remains a major challenge for ship operators, increasing drag and driving up fuel consumption.

 

“Electrostatic application is just one piece of the puzzle. Combined with advanced hull coating performance, it contributes to a more effective sustainability solution,” said Joanna van Helmond, PPG product development director, marine fouling control, Protective and Marine Coatings. 

 

“Friction caused by biofouling can account for 50% of a ship’s total drag1, leading to higher fuel consumption. By applying solutions such as PPG SIGMAGLIDE 2390 coating electrostatically, we can create a smoother, glossier film that reduces hydrodynamic resistance. This in turn leads to lower fuel consumption and greenhouse gas (GHG) emissions.”

 

The publication examines the evolution of electrostatic spray technology, its operational benefits for shipyards and vessel owners, and the contribution advanced hull coatings can make toward the International Maritime Organization’s decarbonization targets.

 

PPG is also set to showcase its broader marine coatings strategy at the Posidonia International Shipping Exhibition, where the company will present its integrated approach combining low-friction hull coatings, electrostatic application technology and digital tools under the theme, Reach New Horizons of Sustainability and Performance.