Corrosion Resistant Coatings for Aircraft
Aircraft corrosion protection demands increasingly sophisticated solutions as modern airframes combine multiple materials operating in diverse environmental conditions. Field data shows that traditional chromate-based coatings, while effective, leave gaps in protection—particularly at material interfaces where galvanic coupling can accelerate corrosion rates up to 0.5mm/year in aggressive environments.
The fundamental challenge lies in developing coating systems that provide comprehensive corrosion protection while meeting strict aerospace requirements for weight, durability, and environmental compliance.
This page brings together solutions from recent research—including waterborne polyurethane systems with modified graphene oxide, fluorosilicone-based thermal conductive coatings, and nano-engineered powder coating technologies. These and other approaches focus on practical implementation strategies that balance corrosion resistance with coating durability and ease of application in aerospace manufacturing environments.
1. Corrosion-Resistant Coating with Waterborne Polyurethane and Epoxysilane-Coupled Graphene Oxide
UNIV NORTHWESTERN POLYTECHNICAL, 2024
A high-strength corrosion-resistant coating for aircraft comprising a waterborne polyurethane resin, titanium dioxide, modified graphene oxide, defoaming agent, curing agent, dispersant, and light stabilizer. The coating combines the natural barrier properties of graphene oxide with the reinforcement capabilities of hyperbranched polyethyleneimine (HPEI) through epoxysilane coupling. The HPEI grafts onto the graphene oxide surface, enhancing its mechanical strength while maintaining moisture barrier performance. The coating formulation balances these properties through precise control of HPEI concentration, ensuring optimal performance without compromising curing characteristics.
2. Guide Vane Coating with Fluorosilicone Polyurethane Matrix and Thermal Conductivity Enhancers
HUNAN POWER MACHINERY INSTITUTE AERO ENGINE CORPORATION OF CHINA, 2024
Aerospace engine guide vane anti-corrosion coating that combines high thermal conductivity with enhanced corrosion protection. The coating comprises a fluorosilicone modified polyurethane matrix, diamond nanoparticles, carbon nanotubes, hollow microspheres, flake boron nitride, flake zinc phosphate, dispersant, leveling agent, and butyl acetate. The coating provides superior thermal conductivity while maintaining mechanical integrity, enabling efficient corrosion protection of copper alloy guide vanes in aircraft engines.
3. Thermal Powder Coating Method for Corrosion-Resistant Application on Aircraft Engine Components
SAFRAN AIRCRAFT ENGINES, Safran Aircraft Engines Company, 2024
A method for applying a corrosion-resistant coating to aircraft engine components using thermal powder coating. The coating, comprising a polyurethane or silicone polymer with a glass transition temperature below -30°C, is deposited through powder processing, providing enhanced corrosion protection for organic matrix composite or metallic components.
4. Aircraft Skin Coating with Modified Epoxy and Polyester Resin Structures
SICHUAN TIANZHOU GENERAL AVIATION TECH CO LTD, 2023
Aircraft skin paint layer based on modified resin comprising a primer and a topcoat. The primer is a modified epoxy resin formed by hydroxyl ring-opening anhydride reaction with 16-cyclohexanedimethanol and 1,4-cyclohexanedimethanol, introducing six-membered ring alicyclic structure and long-chain flexible ether bonds while maintaining cross-linking density. The topcoat is a color paint prepared by introducing glycols with a six-membered ring structure into the middle of phthalic anhydride through hydroxyl ring-opening anhydride reaction, and an organic compound synthesized from chlorosilane monomers to graft-modify high hydroxyl value polyester resins. The modified resin exhibits enhanced corrosion resistance, adhesion, and thermal stability compared to traditional zinc-based coatings.
5. Corrosion Inhibition Composition with Cerium, Silicate, and Molybdate for Enhanced Solubility
GOODRICH CORP, 2023
A corrosion inhibition composition for metal and metal-coated substrates that enhances molybdate solubility. The composition comprises cerium, a silicate compound, and molybdate, which together regulate molybdate release. This composition provides enhanced corrosion protection for substrates like aircraft landing gear and construction components by improving molybdate solubility.
6. Ceramic Coatings with Rare Earth Stabilized Zirconia and Silicates for EBC and CMC Layers via DVC Process
OERLIKON METCO INC, Oerlikon Metco Company, 2023
Ceramic coatings for protecting EBC and CMC layers and thermal spraying methods thereof, particularly for gas turbine engine components. The coatings combine erosion-resistant, water vapor corrosion-resistant, and CMAS-resistant properties through a DVC (deposition by vacuum) process. The coatings are deposited directly on the EBC-coated substrate and comprise a mixture of rare earth stabilized zirconia (RE-ZrO) with rare earth silicates or other combinations of rare earth oxides, zirconia with rare earth oxides, zirconia with rare earth silicates, or other rare earth stabilized zirconia mixtures.
7. Multi-Layer Corrosion-Resistant Film with Vinyl Resin and Glass Layers for Aircraft Cargo Beams
SHANGHAI ZITU NEW MATERIALS TECHNOLOGY CO LTD, Shanghai Zitu New Material Technology Co., Ltd., 2022
A corrosion-resistant protective film for aircraft cargo compartment beams that prevents moisture and chemical corrosion through a multi-layered system. The film comprises a vinyl resin anticorrosive layer, a glass-based layer, and a release paper layer. The glass layer is applied first, followed by the vinyl resin layer, and finally the release paper layer. This layered structure provides comprehensive protection against corrosive substances while maintaining the structural integrity of the beam. The film's thickness range is between 0.03-0.12mm, with an areal density of 150g/m2-250g/m2.
8. Nanoscale Titanium Dioxide-Based Powder Coating with Fluorinated Epoxy Resin for Aircraft Surfaces
SCIENTIFIC AND TECH SHARE LIMITED COMPANY OF HUAHONGQING INDUSTRY OF ANHUI, 2022
Powder coating for aircraft surfaces at the nanoscale, enabling enhanced durability and performance compared to traditional metal coatings. The coating employs a specially formulated titanium dioxide-based powder system, with additives that enhance wetting and leveling properties. The coating is cured using a fluorinated epoxy resin, which combines with the powder to create a strong, corrosion-resistant, and aerodynamically optimized finish for aircraft surfaces.
9. Graphene-Nano-Metal Composite Coating with In Situ Metal Atom Replacement for Corrosion Resistance
HUNAN HANKUN INDUSTRY CO LTD, 2021
A marine anti-corrosion nano-aviation coating that protects aircraft substrates from corrosion through a single-step hydrothermal reduction of graphene oxide and nano-metal. The coating consists of a graphene-nano-metal composite material, synthetic resin, deionized water, and additives, which forms a dense protective layer that shields water, oxygen, and hydrogen ions from corrosive substances. The coating achieves superior corrosion protection through the in situ replacement of oxygen atoms in graphene oxide by metal atoms, while also incorporating ethylene glycol, glucose, and ascorbic acid for residual metal ion reduction and purification.
10. Magnesium-Lithium Alloy Surface Anticorrosive Coating System with High-Density Resin Primer and Sealing Varnish
AEROSPACE RES INST MAT & PROCESS TECH, 2020
Composition for forming a magnesium-lithium alloy surface anticorrosive coating system and a preparation method of the anticorrosive coating system. The composition comprises an anticorrosive primer and a sealing varnish, wherein the anticorrosive primer is made of raw materials including the following mass ratios: 70-100 parts of high-density and toughness resin, preferably 80-95 parts.
11. Coating Application Method for Reinforced Structures with Corrosion-Resistant Composition
CHINA SPECIAL VEHICLE RESEARCH INSTITUTE, 2020
A coating protection treatment method for advanced reinforced structures that enhances durability in corrosive marine environments. The method involves applying a specialized coating to the structure's surface, specifically designed to address the unique challenges of salt spray exposure. The coating formulation combines advanced materials with proven corrosion-resistant properties, ensuring accelerated performance and extended maintenance intervals for aircraft structures.
12. Lacquer Formulation for Drone Skin with Multi-Resistance and Aesthetic Properties
LYU JUN, 2018
A lacquer formulation for drone skin that combines UV, rain, temperature, and chemical resistance properties while maintaining aesthetic appeal. The formulation provides comprehensive protection against environmental stressors, including UV degradation, moisture ingress, extreme temperatures, and corrosive substances, while also enhancing the drone's visual appearance.
13. Multi-Layer Protective Film with Functionalized Coating and Integrated Adhesive for Aircraft Surfaces
SHANGHAI ZITU NEW MATERIALS TECHNOLOGY CO., LTD., Shanghai Zitu New Material Technology Co., Ltd., 2018
Protective film for enhanced chemical corrosion protection of aircraft surfaces, comprising a release layer, an adhesive layer, a functional material film, and the functional material film laminated with the adhesive. The film integrates a multi-layer material film comprising a flexible material, elastomer, and functionalized coating, providing enhanced chemical corrosion protection through its layered structure.
14. Anticorrosive Coating Formulation with Modified Nano-Activated Carbon and Synergistic Additives
YUAN ZHENG, 2018
A high-performance anticorrosive coating for extreme environments, comprising a unique formulation of modified nano-activated carbon, white oil, modified zeolite powder, hydrogenated castor oil, modified attapulgite, pumice sand, polyisobutylene, modified bentonite, polyvinyl alcohol, and zinc chromate. The coating provides enhanced protection against corrosion in marine and aviation applications through its synergistic combination of active corrosion inhibitors and physical barrier components. The formulation achieves superior performance while maintaining a lower cost profile compared to traditional anticorrosive coatings.
15. Composite Material with Corrosion-Resistant Polymer Matrix and UV-Blocking Additive for Aircraft Casings
QINGDAO AIFEIKE AVIATION TECHNOLOGY CO., LTD., 2018
A composite material for aircraft outer casings that combines excellent corrosion resistance and UV protection. The coating comprises a combination of a corrosion-resistant polymer matrix and a UV-blocking additive. The polymer matrix provides structural integrity while the UV-blocking additive enhances the coating's UV resistance. This dual-component system enables comprehensive protection against corrosion and UV degradation, ensuring the aircraft's structural integrity and safety.
16. Marine Corrosion-Resistant Aero Engine Paint with Epoxy Primer and Specialized Additives
HEBEI CHENYANG IND & TRADE GROUP CO LTD, 2018
A marine corrosion-resistant aero engine deionized water paint for aircraft engine surfaces, comprising an epoxy primer with enhanced performance against high-humidity environments. The paint combines a proprietary epoxy resin with environmentally friendly cosolvents and specialized additives to provide superior protection against microorganisms, salt spray, and chemical corrosion. The primer's performance is demonstrated through its resistance to deionized water and salt spray, with enhanced impact resistance and wear resistance.
17. Drone Casing with Multi-Layered Corrosion-Resistant Coating System
NANJING KAITIANYAN UNMANNED AERIAL VEHICLE TECHNOLOGY CO., LTD., Nanjing Kaitianyan UAV Technology Co., Ltd., 2018
Corrosion-resistant drone casing comprising a substrate, a hot-dip galvanized layer on the upper surface of the substrate, a metal anti-corrosion primer layer, a high-strength powder water-resistant coating, and an anti-corrosion coating on the zinc layer.
18. Alloy Matrix Anticorrosion Coating with Integrated Corrosion-Inhibiting Agent and Surface Treatment Component
YANTAI LUMAI WATERPROOF AND ANTICORROSION MATERIAL CO., LTD., Yantai Lumai Waterproof and Anti-corrosion Materials Co., Ltd., 2018
High-performance alloy matrix anticorrosion coating and preparation method for marine and aviation equipment surfaces. The coating comprises an alloy matrix comprising at least one metal alloy, a corrosion-inhibiting agent, and a surface treatment component. The alloy matrix is formed by combining the metal alloy with the corrosion-inhibiting agent and surface treatment component in a controlled reaction process. The surface treatment component is applied to the alloy matrix surface and undergoes a controlled thermal treatment to enhance the corrosion-inhibiting properties of the alloy matrix.
19. Coating System with Polymer Resin Base, Aluminum-Based Primer, and Hydrophobic Polymer Layer for Helicopter Surfaces
LIYANG EAST WING GENERAL AVIATION TECHNOLOGY CO., LTD., 2018
A waterproof and corrosion-resistant coating for helicopter surfaces that maintains integrity over time. The coating combines a durable polymer resin base with a specialized aluminum-based primer and a proprietary hydrophobic polymer layer, providing exceptional protection against environmental corrosion and water penetration. The coating system ensures continuous waterproofing while maintaining the structural integrity of the helicopter's surface, even under extreme environmental conditions.
20. Hybrid Organic-Inorganic Polymer Matrix for Aluminum Aircraft Corrosion Protection
THE BOEING CO, 2018
Surface treatment and primer system for aluminum aircraft using environmentally friendly inhibitors that replace traditional lead-based systems. The system employs a hybrid organic-inorganic polymer matrix that forms colloidal particles or network gels depending on reaction conditions. This matrix provides enhanced corrosion protection through controlled polymerization, allowing the system to achieve superior performance compared to traditional lead-based systems. The system can be applied as a primer, followed by a surface treatment, to provide comprehensive corrosion protection for aluminum aircraft components.
21. Coating Matrix with Mesostructured Particles Incorporating Corrosion Inhibitors via Continuous Nebulization-Heating Synthesis
PYLOTE, 2017
A coating comprising a matrix containing mesostructured particles that retain mechanical and barrier properties while incorporating functional corrosion inhibitors. The coating is synthesized through continuous nebulization-heating steps that form individual and mesostructured spherical particles, which are loaded with functional corrosion-inhibiting molecules and nano-objects. The mesostructured particles maintain their three-dimensional network structure within the coating matrix while providing the anticorrosion properties through both molecular and nano-scale active sites.
22. Method for Preparing Anti-Corrosion Coating with Resin-Based Primer and Talc-Reinforced Hydrotalcite for Aircraft Alloys
MARINE CHEMICAL RESEARCH INSTITUTE CO LTD, 2017
A method for preparing an anti-corrosion coating for aircraft skin alloys that prevents filamentous corrosion while maintaining salt spray resistance. The coating comprises a primer comprising a resin, epikmeB resin, and hydrotalcite, which is applied to the alloy substrate. The primer is formulated with talc as a reinforcing agent to enhance its mechanical properties while maintaining its corrosion resistance properties. The coating is formulated in a specific ratio of components to achieve optimal performance in both salt spray and corrosive environments.
23. Coating for Aircraft Fasteners Comprising Inorganic Salt and Polysiloxane Components with Controlled Thickness
Hi-Shear Corporation, HI-SHEAR CORPORATION, 2017
Corrosion-resistant coating for aircraft fasteners that eliminates the need for chromate-based inhibitors while maintaining performance. The coating comprises a composition containing a salt of an inorganic cation and an anion, with additional components like poly (3-ammonium propyl alkoxysiloxane) carboxylic acid salt and polytetrafluoroethylene. The coating is applied to fasteners through a controlled drying process that maintains a thickness of 0.0002-0.0005 inches. The coating exhibits superior performance in galvanic corrosion protection compared to traditional chromate-based coatings, while maintaining adhesion and mechanical properties.
24. Inorganic-Organic Hybrid Coating Composition with Polysiloxane Matrix and Titanium Dioxide for Enhanced Durability
GUANGXI UNIVERSITY, Guangxi University, 2017
Coating composition for a helicopter landing platform that enhances its durability and resistance to environmental stressors through a novel inorganic-organic hybrid matrix. The composition incorporates a polysiloxane matrix with a silicon-oxygen bond energy of 446 kJ/mol, which significantly exceeds that of organic carbon-carbon bonds. This enables the formation of a strong interpenetrating network with the polysiloxane, providing exceptional mechanical properties. The composition combines a polysiloxane matrix with an inorganic matrix, such as titanium dioxide, to create a hybrid material with superior performance characteristics. The resulting coating exhibits enhanced weatherability, moisture resistance, and UV resistance, as well as excellent salt spray and high-temperature resistance, making it suitable for demanding helicopter landing platforms.
25. Polyurethane-Based Coating for UAVs with Enhanced Scratch Resistance and Electrical Insulation Properties
WENZHOU CHUYING TECHNOLOGY CO LTD, 2016
Coating for unmanned aerial vehicles (UAVs) that enhances durability and resistance to environmental stressors while maintaining electrical insulation properties. The coating comprises a specialized polyurethane-based material that provides enhanced scratch resistance and electrical insulation while maintaining the vehicle's structural integrity. The coating is applied to the UAV's surface using a controlled process that ensures uniform coverage and optimal adhesion. This coating solution enables UAVs to operate effectively in challenging environments such as high-altitude areas, remote regions, and areas with corrosive substances, while maintaining their performance characteristics.
26. Aircraft Wing Skin Coating with Multi-Layer Zinc Yellow and Acrylic Urethane Fluorocarbon Structure
Liyang Ha-Da Achievement Transformation Center Co., Ltd., LIYANG HADA ACHIEVEMENTS TRANSFORMATION CENTER CO., LTD., 2016
A low-cost, environmentally friendly aircraft wing skin coating comprising a substrate and a protective zinc yellow coating comprising a layer of primer and two layers of acrylic urethane fluorocarbon finish. The coating comprises a zinc yellow primer dry film thickness of 14 microns, an intermediate fluorocarbon finish dry film thickness of 36 microns, and an outer layer of fluorocarbon finish dry film thickness of 59 microns.
27. Fluorine-Based Polymer Coating System with Enhanced Thermal Stability and UV Resistance for Aircraft Wings
LIYANG HADA ACHIEVEMENTS TRANSFORMATION CENTER CO LTD, 溧阳市哈大成果转化中心有限公司, 2015
A high-performance aircraft wing coating system that addresses the limitations of conventional fluorocarbon coatings. The coating employs a novel fluorine-based polymer with enhanced thermal stability, UV resistance, and chemical durability. This polymer combines the benefits of fluorine-containing monomers with cross-linking agents to achieve superior performance characteristics. The coating system enables high-performance aircraft wing applications while maintaining stringent environmental and cost requirements.
28. Fluorocarbon Coating for Aircraft Wing Shells with Zinc Yellow Acrylic Polyurethane Base and High-Strength Finish Layer
LIYANG HADA ACHIEVEMENTS TRANSFORMATION CENTER CO LTD, Liyang Ha Da Achievement Transformation Center Co., Ltd., 2015
A fluorocarbon coating for aircraft wing shells that enhances performance through advanced ultraviolet light resistance, temperature stability, and corrosion protection. The coating combines a base layer of zinc yellow acrylic polyurethane paint with a high-strength fluorocarbon finish layer. The fluorocarbon coating achieves superior performance characteristics through its unique molecular structure, which enables enhanced bonding with aluminum and magnesium alloy materials and composite components. This proprietary fluorocarbon coating system provides superior protection against environmental factors such as UV radiation, temperature fluctuations, and corrosive substances, enabling aircraft flight at higher speeds while maintaining structural integrity.
29. Protective Aircraft Wing Coating with Fluorocarbon-Infused Polyurethane Base System
LIYANG HADA ACHIEVEMENTS TRANSFORMATION CENTER CO LTD, 溧阳市哈大成果转化中心有限公司, 2015
A protective coating for aircraft wing shells that combines high-performance fluorocarbon coatings with a specialized polyurethane base system. The coating consists of a base material and a skin protection layer, where the polyurethane base is a zinc yellow acrylic polyurethane paint with a specific fluorine content. The base layer provides excellent adhesion and durability, while the fluorocarbon finishing layer enhances weather resistance, chemical resistance, and thermal stability. The coating achieves optimal performance through its unique composition and application process, which enables superior protection against extreme environmental conditions without compromising structural integrity.
30. Multi-Layer Fluorocarbon Coating with Zinc Yellow Acrylic Polyurethane and Variable Fluorine Monomer Ratio
LIYANG HADA ACHIEVEMENTS TRANSFORMATION CENTER CO LTD, 溧阳市哈大成果转化中心有限公司, 2015
A high-performance fluorocarbon coating for aircraft wing surfaces that combines excellent thermal resistance, UV protection, and weather resistance with enhanced durability and surface finish. The coating comprises a base material with a skin protection layer of zinc yellow acrylic polyurethane paint, followed by a 35 μm thick fluorocarbon finishing layer. This multi-layer design provides superior performance characteristics, including high thermal resistance, UV protection, and weather resistance, while maintaining a dry film thickness of 13 μm. The coating achieves its exceptional performance through the use of a fluorine-containing monomer ratio in the fluorocarbon resin, which enables a high cross-linking degree and superior mechanical properties.
31. Fluorocarbon Coating with Zinc Yellow Acrylic Polyurethane Layer for Aircraft Body Outer Shells
LIYANG HADA ACHIEVEMENTS TRANSFORMATION CENTER CO LTD, Liyang Ha Da Achievement Transformation Center Co., Ltd., 2015
A fluorocarbon coating for aircraft body outer shells that combines superior performance with environmental sustainability. The coating comprises a base material with a zinc yellow acrylic polyurethane skin layer and a fluorocarbon finishing layer. The fluorocarbon layer achieves exceptional weather resistance, chemical resistance, and thermal stability through its high fluorine content and molecular bonding strength. This innovative combination enables the coating to meet stringent performance requirements while minimizing environmental impact. The coating's dry film thickness is optimized at 20 microns, with the fluorocarbon layer achieving a thickness of 48 microns.
32. Multi-Layer Fluorocarbon Coating with Nanometer Thickness for Aircraft Fuselage
LIYANG HADA ACHIEVEMENTS TRANSFORMATION CENTER CO LTD, Liyang Ha-Da Achievement Transformation Center Co., Ltd., 2015
A high-performance fluorocarbon coating for aircraft fuselage that enhances durability and resistance to extreme conditions through advanced nanotechnology. The coating consists of a base material and a specialized polyurethane paint layer with a nanometer thickness of 22 microns, followed by a 44 micron nanometer thickness fluorocarbon finish layer. This multi-layered structure combines the exceptional thermal resistance, chemical resistance, and UV protection properties of fluorocarbon with the mechanical strength and abrasion resistance of a specialized polyurethane coating. The nanometer thicknesses are carefully controlled to achieve optimal performance while maintaining cost-effectiveness and environmental sustainability.
33. Method for Coating Aircraft Components with Multi-Component Epoxy and Polyatomic Alcohol Resin Layers
CHINA NAT OFFSHORE OIL CORP, 2015
A method for coating aircraft components that enhances durability and gloss retention through a multi-component system. The coating comprises a base layer containing epoxy resin, modified resin, pigments, corrosion prevention agent, filler, and solvent. The base layer is applied to the component's surface, followed by a weather-resistant transparent layer containing polyatomic alcohol resin, auxiliary agent, and solvent. This multi-layer system provides superior corrosion protection and color retention compared to traditional coatings.
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