Technology & Innovation
SINTEF Develops Sustainable Anti Icing Coating for Aviation and Energy
Norwegian SINTEF creates a fluorine free polyurethane coating that prevents ice buildup on aircraft and wind turbines, enhancing safety and reducing costs.
Revolutionary Anti-Icing Technology Offers Sustainable Solution for Aviation and Energy Industries
Norwegian researchers at SINTEF have developed a groundbreaking polyurethane-based coating that represents a paradigm shift in ice prevention technology for aircraft, drones, and wind turbines. This environmentally friendly solution addresses the critical challenges of ice formation that cost the aviation industry billions annually while offering superior performance compared to traditional electrical heating and chemical de-icing methods. The innovation, emerging from the three-year IceMan project with a budget of 1.4 million euros, demonstrates water droplet roll-off capabilities and freezing delays of over four hours at -5°Celsius, positioning it as a transformative technology for multiple industries facing icing challenges.
The significance of this development is underscored by the persistent, costly, and safety-critical nature of icing in both transportation and energy sectors. Traditional methods, including thermal and chemical solutions, are energy-intensive, environmentally problematic, and often limited in effectiveness. The SINTEF coating, being fluorine-free and compatible with existing application processes, introduces a new sustainable standard for ice prevention.
This article explores the context of icing challenges, details the SINTEF innovation, examines market and environmental implications, and discusses broader applications and future prospects for this emerging technology.
Current Challenges and Market Context of Ice Formation
Operational Risks and Economic Impact
Ice accumulation on aircraft surfaces is one of the most persistent and costly challenges in aviation. It occurs when supercooled water droplets in clouds or freezing precipitation hit cold surfaces, freezing almost instantly and altering the aerodynamic properties of wings and control surfaces. This can lead to reduced lift, increased drag, and in severe cases, loss of control. Even minor ice formation can disrupt airflow, posing significant safety risks.
The economic impact is substantial. The global aircraft de-icing market was valued at $1.18 billion in 2022 and is projected to grow at a compound annual growth rate (CAGR) of 5.0% through 2030. Alternative projections estimate the market could reach $1.59 billion by 2029 at a CAGR of 4.8%. These figures reflect both the direct costs of de-icing and the operational disruptions and safety measures required to manage ice.
Costs vary dramatically depending on aircraft size, weather severity, and regional pricing. For example, de-icing a small Cessna 172 may cost up to $160 for light snow, while a business jet may incur costs of several hundred dollars for mild frost and up to $10,000 for severe freezing rain. These expenses are compounded by indirect costs such as flight delays, maintenance, and compliance with stringent regulatory requirements.
“Ice accumulation can reduce wing lift by up to 30% while simultaneously increasing drag by 40%, creating potentially catastrophic flight conditions.”
Industry-Wide and Regional Implications
The challenge of icing is not confined to aviation. Wind turbines, power lines, and marine vessels all face operational hazards and economic losses due to ice. In the wind energy sector, ice can reduce annual energy production by 3-10% in typical conditions, with extreme cases seeing losses up to 20%. Severe icing events have been documented to cause power reductions of up to 80% in some wind installations.
Regional climate plays a significant role. Cold climate areas with frequent snow and freezing temperatures require more frequent and intensive de-icing, leading to higher operational costs and increased downtime. The International Civil Aviation Organization has noted that ice-related disruptions contribute to significant economic impacts during severe weather periods.
The need for effective, scalable, and environmentally responsible ice prevention technologies is thus a global challenge, affecting a wide range of industries and geographies.
The SINTEF Innovation: Breakthrough in Anti-Icing Technology
Technical Foundations and Performance
The SINTEF polyurethane-based coating represents a proactive shift in ice management. Instead of removing ice after it forms, this coating prevents supercooled water droplets from adhering and freezing on surfaces. The technology was developed through the IceMan project, a three-year international collaboration funded by the POLNOR Programme under Norway Funds.
The coating incorporates functionalized polyhedral oligomeric silsesquioxanes (POSS) additives into a waterborne polyurethane matrix. These hybrid materials create a surface that causes water droplets to bead up and roll off before freezing can occur. Application is straightforward, using conventional spray or brush techniques, allowing integration into existing manufacturing and maintenance processes.
Laboratory tests have shown that the coating can delay ice formation for more than four hours at -5°C and significantly improve water repellency. The use of scanning electron microscopy and energy-dispersive X-ray spectroscopy has helped optimize the material’s microstructure for maximum anti-icing performance.
“In practice, this will mean that supercooled water droplets that land on the rotor blades won’t be able to freeze onto the surface. The water will bead up and roll off the surface before it has time to freeze.”, Christian Karl, SINTEF researcher
Environmental and Regulatory Advantages
A major innovation is the exclusion of fluorine compounds, which are common in traditional anti-icing coatings but pose environmental and health risks due to their persistence and bioaccumulation. The SINTEF coating is fluorine-free, aligning with growing regulatory restrictions on per- and polyfluoroalkyl substances (PFAS).
The waterborne formulation also reduces volatile organic compound (VOC) emissions compared to solvent-based coatings, supporting compliance with air quality regulations and reducing health risks for workers. These environmental benefits are achieved without sacrificing performance, as demonstrated by the coating’s laboratory and field results.
The coating’s passive mechanism eliminates the need for continuous energy input, unlike electrical heating systems, and reduces or eliminates the use of chemical de-icing agents. This not only lowers operational costs but also minimizes environmental contamination from chemical runoff.
Economic Impact, Market Transformation, and Broader Applications
Cost Reductions and Operational Efficiency
The SINTEF coating has the potential to fundamentally change the economics of ice management. By preventing ice formation, it can reduce or eliminate the recurring costs associated with traditional de-icing methods, such as repeated chemical applications and high energy consumption from heating systems.
In wind energy, preventing ice build-up can reduce production losses, maintenance costs, and safety incidents related to ice throw. Ice accumulation is known to cause up to 13% of turbine downtime annually due to increased stress on components and the need for repairs. The coating’s long-lasting protection can help operators achieve more predictable budgets and fewer weather-related interruptions.
The technology is also applicable to other sectors, including telecommunications (where ice can disrupt power lines and towers), marine operations (where ice affects hulls and deck equipment), and automotive (where sensors and mirrors are vulnerable to icing).
“More and more industrial sectors, like wind energy, aerospace, automotive and marine technology, have turned their attention to our solution.”, Christian Karl, SINTEF researcher
Research Collaboration, Validation, and Commercialization
The development of the coating involved international collaboration between SINTEF (Norway), Technology Partners (Poland), MSP InnTech (Poland), and BioEnvision AS (Norway). The project combined advanced materials research with practical testing on drone rotors, aircraft components, and wind turbine blades.
Validation included laboratory wetting and freezing tests, wind tunnel studies on standard aerofoil profiles, and real-world field trials. The coating’s performance was confirmed both in controlled environments and operational scenarios, such as in the terraXcube icing research tunnel and in-flight drone tests.
Commercialization prospects are strong, with the technology being compatible with existing coating processes and attractive to industries seeking sustainable, cost-effective solutions. Early adoption is expected in high-value applications such as aviation and wind energy, with broader uptake likely as regulations tighten and environmental awareness grows.
Conclusion
The SINTEF anti-icing coating represents a major advancement in sustainable ice management for aviation, wind energy, and beyond. Its fluorine-free, waterborne formulation offers significant environmental benefits while delivering superior performance in preventing ice formation and reducing maintenance costs.
As industries face increasing pressure to improve safety, efficiency, and environmental stewardship, this technology stands out as a practical, scalable, and responsible solution. Ongoing research and international collaboration will likely drive further innovation and adoption, positioning the SINTEF coating as a benchmark for future anti-icing technologies.
FAQ
What is the main advantage of the SINTEF anti-icing coating over traditional methods?
The main advantage is its ability to prevent ice formation proactively without the need for energy-intensive heating or environmentally harmful chemicals, offering long-lasting protection and reduced operational costs.
Is the SINTEF coating environmentally safe?
Yes, it is fluorine-free and waterborne, avoiding the use of persistent and bioaccumulative chemicals like PFAS, and reducing VOC emissions during application.
Can the coating be applied to existing equipment?
Yes, it can be applied using standard spray or brush techniques and is compatible with existing maintenance and manufacturing processes.
What industries could benefit from this technology?
Aviation, wind energy, telecommunications, marine, and automotive sectors are all potential beneficiaries due to the widespread challenges posed by ice formation.
Has the coating been tested in real-world conditions?
Yes, the coating has undergone laboratory, wind tunnel, and field testing, including on drone rotors and wind turbine blades, with positive results.
Sources
Photo Credit: SINTEF
Technology & Innovation
Airbus A380 Flight Lab Unveiled for CFM RISE Open Fan Testing
Airbus and CFM International unveil A380 flight lab livery at Farnborough 2026 for CFM RISE Open Fan engine tests.
Airbus SE and CFM International unveiled the livery for the Airbus A380 flight lab dedicated to testing the CFM RISE (Revolutionary Innovation for Sustainable Engines) Open Fan engine architecture at the Farnborough International Airshow on July 21, 2026.
The presentation coincides with the completion of the first conceptual flight test design review. The joint program between Airbus and CFM International, a 50/50 joint company between GE Aerospace and Safran Aircraft Engines, aims to reduce fuel consumption and carbon dioxide emissions by 20 percent compared to current commercial engines.
Transitioning to flight test preparation
The designated testbed aircraft, an Airbus A380 identified as Manufacturer Serial Number (MSN) 114, departed a six-year desert storage in France on July 16, 2026. The aircraft relocated to Shannon, Ireland, to undergo painting and structural modifications. Engineers will eventually mount the open fan engine in the number 2 position on the inboard left wing for the Test-Flights campaign.
CFM International recently completed the preliminary design review for the compact core system, open fan, and outlet guide vanes. Arjan Hegeman, Vice President of Future of Flight Engineering at GE Aerospace, stated that this milestone allows the Manufacturing of parts for the grounded demonstrator to begin.
Prioritizing engine durability
While the open fan design removes the traditional engine casing to accommodate a larger fan and reduce drag, program leaders are placing equal emphasis on component longevity. GE Aerospace has completed over 350 tests and 3,000 endurance cycles on core components, which includes early dust ingestion testing.
“If there’s anything we’ve learned over the last years, it’s that durability matters as much as, if not more than, fuel efficiency,” Hegeman said.
Hegeman noted that the engineering teams are aiming to reach technology readiness level six by the turn of the decade.
AirPro News analysis
The explicit focus on durability during the early testing phases of the CFM RISE program reflects a broader industry shift. Current-generation narrowbody engines have faced well-documented time-on-wing and maintenance challenges, prompting Manufacturers to prioritize robust operating characteristics alongside fuel efficiency gains. By subjecting core components to 3,000 endurance cycles and dust ingestion tests years before the first flight, CFM International is working to ensure the open fan architecture can withstand harsh operational environments from entry into service. We expect this dual mandate of efficiency and reliability to define the Certification pathway for next-generation Propulsion systems.
Sources: GE Aerospace Press Release
Photo Credit: GE Aerospace
Technology & Innovation
Joby Aviation and Toyota Form eVTOL Manufacturing Joint Venture
Joby Aviation and Toyota establish a joint venture to manufacture the S4 eVTOL, with Toyota holding a 51% stake.
Joby Aviation, Inc. (JOBY) and Toyota Motor Corporation (TM) have formalized their nearly decade-long partnership by establishing a joint venture to manufacture electric vertical take-off and landing (eVTOL) aircraft. The new entity, named the Joby Toyota Aero Manufacturing Preparation Company, will focus on scaling commercial production of the Joby S4 Series eVTOL aircraft.
Announced in a press release on June 30, 2026, following a U.S. Securities and Exchange Commission (SEC) 8-K filing on June 29, 2026, the alliance combines Joby’s electric aviation technology with Toyota’s established production systems expertise. The joint venture will operate across locations in Santa Cruz, California, and Toyota City, Japan.
Joint venture structure and financial stakes
Toyota holds a 51 percent majority stake in the new manufacturing company, acquired through the purchase of 1.02 million shares for $1.02 million. Joby retains the remaining 49 percent stake, having purchased 980,000 shares for $980,000. The joint venture will be governed by a five-member board of directors, with three members designated by Toyota and two designated by Joby.
The agreement includes specific intellectual property licensing arrangements between the two parent companies. Joby will license certain aircraft-related intellectual property to the joint venture on a royalty-free basis. In return, Toyota will license manufacturing-related intellectual property to the venture, which includes certain royalty-bearing rights.
Scaling eVTOL production
The formal joint venture builds upon a foundation of significant financial and technical support from the Japanese automaker. Toyota has provided approximately $900 million in total capital to Joby to date. The automaker is already providing technical assistance as Joby establishes a series production line for the S4 eVTOL aircraft at a facility in Ohio.
In the June 30 press release, Joby Aviation founder and CEO JoeBen Bevirt highlighted the depth of the corporate relationship.
“Toyota has been by Joby’s side for nearly a decade, providing invaluable guidance and support as we built the foundation for Manufacturing our aircraft. Today’s announcement reflects the strength of our relationship and our shared confidence in the opportunity ahead.”
Toyota Motor Corporation Chairman Akio Toyoda stated that the company views air mobility as a natural extension of its philosophy of providing mobility for all, expanding its focus from the ground into the sky to bring new value to society.
Certification progress and next steps
The manufacturing alliance aligns with Joby’s ongoing Certification efforts with the U.S. Federal Aviation Administration (FAA). During the first quarter of 2026, Joby began flying its first FAA-conforming aircraft for type inspection authorization. This testing phase is a required step as the company works toward achieving full FAA type certification for the S4 Series.
With the joint venture now legally established, the two companies will begin integrating their engineering and manufacturing teams across the California and Japan facilities to prepare for high-volume aircraft production.
AirPro News analysis
We view the formalization of the Joby Toyota Aero Manufacturing Preparation Company as a critical de-risking event for Joby’s production ambitions. While designing and certifying an eVTOL aircraft presents significant regulatory hurdles, manufacturing these vehicles at scale with automotive-style efficiency is an entirely different challenge that has historically troubled aerospace Startups. By securing a majority-stake commitment from Toyota, Joby gains direct access to one of the world’s most proven manufacturing systems. Furthermore, the intellectual property arrangement, where Toyota retains royalty-bearing rights on its manufacturing processes, suggests the automaker sees long-term revenue potential in aerospace production beyond its initial capital Investments.
Photo Credit: Joby Aviation
Sustainable Aviation
KBR Selected for Asia’s First Ethanol-to-Jet SAF Plant in Singapore
KBR will provide PureSAF technology licensing and FEED services for a 100,000-ton/year SAF facility on Jurong Island, Singapore.
On June 29, 2026, KBR announced its selection by Keppel Ltd. and Aster Chemicals and Energy to provide technology licensing and Front-End Engineering Design (FEED) services for a proposed 100,000-ton-per-year SAF (SAF) facility on Jurong Island, Singapore.
The planned facility is envisioned as Asia’s first commercial-scale ethanol-to-jet (EtJ) SAF plant. According to the KBR press release, the project will utilize the company’s PureSAF technology to produce a 100% drop-in jet fuel, supporting Singapore’s national mandate to increase sustainability usage across the aviation sector.
PureSAF technology and project scope
The Jurong Island facility will leverage PureSAF, a technology originally developed by Swedish Biofuels AB and engineered for commercial-scale production by KBR, which holds the exclusive global license. The process is designed to convert ethanol into aviation fuel that requires no blending with conventional Jet A or Jet A-1 before use.
In a statement accompanying the announcement, KBR President and CEO Stuart Bradie highlighted the system’s flexibility.
“KBR’s PureSAF is a feedstock-flexible, bankable technology that is designed to deliver a 100% drop in jet fuel, ready to power aircraft without blending. We are constantly innovating our SAF solution to make it compatible with feedstock availability in different regions and to enable the aviation industry to transition to low-carbon jet fuel with a cost-optimized approach.”
The FEED study will determine the technical configuration and project capital expenditure required for the facility. The development remains subject to regulatory approvals and a final investment decision (FID) by the project partners.
Aligning with Singapore’s aviation mandates
The selection of KBR follows a January 28, 2026, agreement between Keppel’s Infrastructure Division and Aster to jointly assess the development of the Jurong Island site. Aster operates as a joint venture between Indonesian petrochemical company Chandra Asri and Swiss commodities trader Glencore.
The proposed 100,000-ton annual production capacity aligns directly with targets set by the Civil Aviation Authority of Singapore (CAAS). Starting in 2026, the CAAS mandates a 1% SAF uplift for all departing flights from the country, with a stated goal of increasing that requirement to between 3% and 5% by 2030.
Alongside the SAF plant contract, KBR and Keppel signed a Memorandum of Intent to collaborate on broader energy transition initiatives. The companies plan to explore technologies related to waste-to-energy, plastic recycling, biofuels, and artificial intelligence-driven digitalization.
AirPro News analysis
We view the progression of the Jurong Island project to the FEED stage as a critical indicator of the Asia-Pacific region’s readiness to scale SAF production. While North America and Europe have led early SAF capacity investments, Singapore’s firm regulatory mandate provides the demand certainty required to underwrite commercial-scale facilities in Southeast Asia. The choice of an ethanol-to-jet pathway is particularly notable, as it allows operators to bypass the constrained supply of fats, oils, and greases that limit hydroprocessed esters and fatty acids (HEFA) production volumes. The project’s ultimate realization hinges on the upcoming final investment decision, which will test the commercial viability of the EtJ process in the current economic environment.
Sources: KBR
Photo Credit: KBR
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