The power of sleek.
Intersleek.
Pioneering silicone performance since 1996.
Deep sea conditions are demanding, and the pressure to deliver greater efficiency is only increasing.
That’s why Intersleek® was developed. International® pioneered silicone foul-release technology over 30 years ago and continues to push boundaries through scientific rigor, real-world performance data and deep operational insight.
What Intersleek delivers in service
Because performance starts at the surface, advanced silicone technology from International creates a smooth, low-friction surface that prevents fouling from binding, delivering predictable speed retention, controlled drag reduction and consistent efficiency across vessels and operating conditions.
Commercial, lifecycle and partnership value
By preventing fouling from bonding to the hull, International helps reduce fuel consumption, extend maintenance intervals and improve operational efficiency, delivering value beyond the coating itself.
Why it matters now and ahead
Regulatory pressure and environmental expectations continue to evolve. Silicone technology from International helps reduce environmental impact while supporting compliance, helping shipowners meet today’s requirements while preparing for what’s next.
The industry-leading RightShip initiative also recognizes the Intersleek® range of biocide-free foul-release coatings as a technology that delivers energy-saving benefits and may be considered within RightShip’s GHG Rating methodology.
Intersleek Solutions
Peak silicone performance.
Proven at sea.
Built on decades of proven silicone expertise, Intersleek 1100SR delivers consistent results where it matters most: in service.
Intersleek 1100SR is our best-performing silicone foul-release coating, engineered for vessels operating at the highest level. Its ultra-smooth, amphiphilic surface provides low friction, minimizing drag from day one and maintaining efficiency throughout extended docking cycles, with predictable speed retention and up to 1.2% speed loss across the docking cycle.
Container Ship
LNG
Bringing silicone performance within reach.
An ideal solution for bulker and tanker operators, Intersleek 2120 delivers reliable, predictable performance aligned with day-to-day operating conditions.
Intersleek 2120 brings the benefits of silicone foul release technology to vessel operators, providing performance and budget flexibility.
Its smooth, low-friction surface reduces drag and supports efficient operations, offering a practical step forward from traditional self-polishing biocidal antifoulings, with predictable speed retention and up to 1.4% speed loss across the docking cycle.
.png?impolicy=.auto&imwidth=272)
Bulker
.png?impolicy=.auto&imwidth=272)
Tanker
Expertise and partnership.
Supporting you from dock to open sea.
Intersleek is built on decades of experience and a deep understanding of how vessels operate in the real world. This expertise is strengthened by data-driven insight, enabling more informed and confident decisions.
✓ Global network of Technical Service Representatives
✓ Recommendations tailored to operational needs
✓ Best-practice standards and drydock support
✓ Ongoing service guidance and performance monitoring
✓ Decades of trusted customer partnerships
Independent verification
Lloyd’s Register verification strengthens customer confidence.
At International®, we work in close partnership with our customers to deliver tailored solutions that maximise operational efficiency and performance.
Our commitment to transparency and measurable results is reinforced by independent verification from Lloyd’s Register, who have confirmed that our ISO 19030 analysis is fully compliant with the standard.
This validation gives customers confidence in the accuracy of vessel speed loss reporting and demonstrates our dedication to supporting their environmental and economic objectives.
Intertac Vision
Turning data into advice.
Intertrac® Vision combines historical vessel data, dry docking events and advanced machine learning to model vessel performance, fuel consumption and cost across different operating scenarios. Drawing on insights from thousands of vessels, it supports more informed, data-driven coating decisions tailored to vessel type, hull form, operational profile and fouling challenges.
By translating complex operational data into practical recommendations, Intertrac Vision helps simplify the coating selection process and supports collaboration between International® and vessel operators to improve efficiency and long-term performance.
Maximizing vessel performance through collaboration
Our whitepaper explores how International® collaborated with a vessel operator to improve vessel performance and sustainability using Intersleek 1100SR.
Examining three LNG vessels over a 60-month service period, the study highlights the role of operational data, hull efficiency monitoring and fouling control in reducing fuel consumption and CO₂ emissions.
