PPG Highlights Benefits of Electrostatic Application Technology for Marine Hull Coatings

PPG has released a new white paper titled Electrostatic Application of Marine Hull Coatings, highlighting how the technology can help ship owners and operators improve coating efficiency while reducing environmental impact.

The electrostatic application process works by negatively charging paint particles as they leave the spray gun, while the surface being coated is grounded. This creates an attractive force that draws the coating to the substrate, resulting in improved transfer efficiency and reduced overspray compared with conventional spraying methods. The technology also helps achieve a more uniform coating finish. According to a case study cited in the paper, EDR Antwerp shipyard achieved a 40% reduction in overspray using the electrostatic application process.

“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.”

PPG noted that the technology can support sustainability goals by reducing paint consumption, which in turn lowers the demand for raw materials, manufacturing, and transportation. These benefits contribute to lower Scope 3 carbon emissions across the coating lifecycle. In addition, when combined with low-friction marine coating solutions, the technology can help vessel operators reduce fuel consumption and lower Scope 1 emissions during operation.

“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.”

Source: PPG