Jotun Says Imperial Fouling Protection Can Halve Yacht Hull Carbon Footprint

Jotun Yachting has published lifecycle analysis of its Imperial Fouling Protection System, arguing that more effective underwater-hull protection can materially reduce both environmental impact and operating cost on large yachts. The company says the system can deliver an approximately 50% lower carbon footprint over a 30-year service life than a conventional antifouling approach.

Hull condition changes propulsion demand

Marine growth increases hydrodynamic resistance as organisms accumulate on the underwater hull, forcing propulsion machinery to work harder for a given speed. Jotun says this relationship makes fouling control an operational-efficiency issue as well as a question of appearance and routine maintenance.

The effect becomes particularly relevant for superyachts because large wetted surfaces, extended idle periods and varied cruising patterns can all influence fouling behaviour. Even modest changes in resistance can translate into additional fuel demand when multiplied across years of operation and long cruising distances.

A lifecycle comparison rather than a single docking

Jotun’s analysis considers the coating system over a 30-year service life instead of focusing only on material used during one application. The company says Imperial’s longer-term performance reduces the combined footprint associated with coating materials, maintenance activity and the extra fuel consumption created by hull deterioration.

Lifecycle comparisons depend on operating profile, maintenance practice, climate and time spent stationary, so the result should not be treated as a guaranteed saving for every yacht. The analysis nevertheless illustrates why yards and technical managers increasingly evaluate coatings as part of a vessel-wide efficiency strategy.

Fuel cost can dominate the calculation

According to Jotun, severe fouling can add more than 50% to a yacht’s annual fuel bill in some circumstances. Preventing that deterioration can therefore have financial consequences far larger than the purchase price of the coating itself, particularly for yachts operating substantial annual mileage.

For owners, the relevant calculation includes fuel, haul-out periods, surface preparation, coating renewal and lost operating time. A system that holds hull performance for longer may reduce several of those burdens simultaneously, although the realised benefit remains dependent on correct application and ongoing hull management.

Coatings become part of efficiency planning

Superyacht efficiency discussions often focus on engines, batteries, propellers and hotel loads, but underwater surface condition directly affects the energy needed to move the vessel. That gives coating selection a role in both new-build specification and refit planning when owners are seeking practical reductions in consumption.

Jotun’s latest analysis places hull protection within that broader engineering conversation. As yards and managers gather more operational data, coating performance can increasingly be assessed alongside propulsion and energy systems rather than treated only as a periodic maintenance item.

Official sources: www.jotun.com.