Select Page

Chrome Coating: A Necessary Investment for Aerospace Components

by | Jul 27, 2023

Chrome coating is not just a crucial investment, it’s a necessity for aerospace components that are exposed to harsh conditions during flight. It offers a range of benefits, including enhanced durability, corrosion resistance, and improved performance. If you want to unlock the full potential of your aerospace components, chrome coating is the answer.

In this article, we’ll explore the world of chrome coating and its primary objectives for aerospace components. We’ll dive into the process, the types of chrome coating available, and the unparalleled advantages it brings to the table. Whether you’re looking to protect landing gear, engine parts, or fuel systems, chrome coating presents itself as the optimal choice that combines cost-effectiveness and durability, addressing your search for an enduring solution. 

Looking to transform your aerospace components with the essential investment in chrome coating? Request a free quote or contact us today for a comprehensive assessment of your chrome coating needs and a personalized solution tailored to your requirements!


What Is Chrome Coating?

Chrome coating, also known as chromium plating or chrome plating, is a process of electroplating a thin layer of chromium onto a surface.1 It is commonly used to provide a decorative or protective finish to various materials, such as metal, plastic, and glass.

Aerospace components are subjected to harsh operating conditions, including high temperatures, friction, and exposure to corrosive elements. Chrome coating provides an additional layer of protection, enhancing the durability and longevity of these components. The hard and wear-resistant properties of chrome coating help prevent damage and extend the lifespan of aerospace parts.

Chrome coating acts as a barrier between the component’s surface and the surrounding environment, protecting it from corrosion. Aerospace components often encounter moisture, chemicals, and other corrosive substances during operation. The corrosion resistance provided by chrome coating helps prevent rust, degradation, and costly damage, ensuring the reliability and safety of the components.


What is Chrome Coating?


How Does It Work?

The chrome coating process involves several steps: surface preparation to clean and prepare the surface, immersion in an electrolyte bath containing chromic acid and sulfuric acid, electroplating with the aerospace component as the anode and a chromium electrode as the cathode, controlling parameters like temperature and current density, and post-treatment such as passivation and polishing. 

Chrome coating provides corrosion resistance, wear resistance, and durability to aerospace components, protecting engine parts, landing gear, hydraulic systems, fasteners, and structural elements. It also allows for customization of appearance while meeting aesthetic and functional requirements.


Benefits Of Chrome Coating

Chrome coating, also referred to as chrome plating, brings a host of benefits to diverse industries and applications. Let’s explore some of the key benefits of chrome coating specifically in aerospace applications: 


Enhanced Corrosion Resistance

The chrome layer acts as a physical barrier, shielding the underlying substrate from direct contact with corrosive elements such as moisture, chemicals, and atmospheric pollutants. Additionally, chrome possesses excellent corrosion resistance properties, preventing the formation and progression of oxidation or rust on the coated surface. 

This helps to maintain the integrity and longevity of aerospace parts, particularly those exposed to harsh operating conditions or corrosive environments, such as aircraft exteriors or engine components.


Improved Hardness And Wear Resistance

Through the process of electroplating, chrome coating creates a thin layer of chromium over the surface of the component. When applied as a coating, chrome forms a hard and durable surface layer that enhances the hardness of the underlying substrate. This hardness helps to withstand mechanical stress, friction, and wear encountered during aerospace operations. This layer of chromium is incredibly hard and resistant to wear and tear, making it ideal for components exposed to extreme conditions and high levels of abrasion. 


Easy To Clean And Maintain

Chrome coating contributes to the ease of cleaning and maintaining aerospace components by offering a smooth and non-porous surface that resists the adhesion of dirt, grime, and contaminants. The inherent properties of chrome, such as its low surface energy and high chemical resistance, make it easier to clean and maintain the coated parts.


Electrical Conductivity

The conductivity of chrome coating is achieved through the use of thin layers of metallic chrome, which inherently possesses good electrical conductivity properties. The chrome coating acts as a conductive layer that can help facilitate the flow of electrical current across the surface of the coated aerospace components. 

This conductivity is particularly important in applications where electrical grounding, shielding, or conductivity is required. Chrome coating can help prevent the buildup of static electricity, minimize electromagnetic interference (EMI), and ensure proper grounding of electrical systems.2


Types Of Chrome Coating

Chrome coating encompasses various types that are used for different purposes in the aerospace industry. These coatings are designed to provide specific characteristics, making them versatile solutions for aerospace component protection and performance.


Hard Chrome Plating

Hard chrome plating offers several benefits, including increased surface hardness, improved wear resistance, and enhanced corrosion resistance. The resulting chrome layer is typically thick, ranging from 0.02mm to 0.04mm, depending on the application requirements. 

It provides excellent protection against friction, abrasion, and chemical degradation, making it ideal for applications where parts are subjected to harsh conditions or heavy wear. It is often used to protect critical components, such as landing gear, hydraulic cylinders, piston rods, and engine parts, from wear and corrosion.


Electroless Nickel-Chromium Plating

Electroless nickel-chromium plating is a process of depositing a layer of nickel-chromium alloy onto a metal substrate without the need for an external electrical current.3 Unlike electroplating, which relies on an electrical current to drive the deposition, electroless nickel-chromium plating is an autocatalytic process that occurs through a chemical reaction. 

It offers several advantages, including uniform and controlled deposition, excellent corrosion resistance, high hardness, and wear resistance. The coating provides a protective barrier against corrosion and can withstand harsh environments and chemical exposure.


Black Chrome Coating

Black chrome coating offers several benefits beyond its distinctive appearance. It provides excellent corrosion resistance, similar to traditional chrome plating, making it suitable for components exposed to harsh environments. The coating also offers enhanced hardness and wear resistance, increasing the durability and lifespan of the treated parts. Additionally, black chrome can be polished to a high shine, further enhancing its visual appeal. 


Diffused Chromium Coating

Diffused chromium coating provides excellent resistance to high-temperature oxidation and corrosion. The diffusion of chromium atoms into the substrate enhances the material’s ability to withstand harsh environments, making it particularly beneficial for aerospace components. Diffused chromium coating improves the substrate’s hardness, wear resistance, and surface lubricity, which can extend the lifespan and performance of the treated parts.


Thin-Film Chrome Coating

The thin layer of chrome provides excellent protection against corrosion, abrasion, and wear. It also provides a superior aesthetic finish. The coating is highly reflective and is available in a variety of colors. This type of chrome coating is also easy to clean and maintain. It is also highly conductive, making it ideal for applications where electrical conductivity is required.

Want to get started with any of these chrome coating processes? Contact us today for professional chrome coating services tailored to your specific needs!


Aerospace Custom Chrome Coating Applications

Aerospace components require a durable and corrosion-resistant coating to protect them from the extreme conditions of flight. Chrome coating is an ideal solution, as it provides superior protection against wear and corrosion, and can be customized to meet the specific needs of each application. 

Aerospace components that are commonly chrome-coated include landing gear, engine parts, and fuel systems. Chrome coating is used to create a protective barrier on parts that need to remain lubricated, such as bearings and gears. In addition, chrome coating is used to create a decorative finish on components that require a high-end appearance, such as cabin and cockpit interior components.

The process of chrome coating aerospace components requires precision and expertise. At Valence, our team of experienced professionals is dedicated to providing the highest quality chrome coating services for aerospace applications. Our advanced chrome coating technology ensures that your components will be protected and perform at their best, even in the most extreme conditions.


Aerospace Custom Chrome Coating Applications


Aerospace Coating Approvals

Aerospace coatings must be approved by a range of national and international organizations. The Federal Aviation Administration’s (FAA) approval process is comprehensive and rigorous. The FAA also provides a list of approved coatings, which must be consulted before any coating is used on a commercial aircraft.

Aircraft coatings must also comply with the standards set by the International Organization for Standardization (ISO). ISO standards are internationally recognized and help ensure that coatings meet the highest level of quality and safety.

Aerospace coatings must also meet the standards set by the Society of Automotive Engineers (SAE). SAE standards are specifically designed for aircraft and aerospace components.


Why Choose Valence Surface Technologies Chrome?

Valence provides aerospace-grade chrome coating that offers unmatched durability and protection for aircraft components. Our chrome coating is designed to meet stringent industry requirements and is approved by major aerospace OEMs. Our chrome coating is applied using advanced technologies, such as electroless nickel-chromium plating, hard chrome plating, diffused chromium coating, thin-film chrome coating, and black chrome coating.

We are committed to delivering superior quality products and services that meet the highest standards. Our team is available to answer any questions you may have and provide you with the best possible solution for your aerospace component requirements.


Unmatched Durability And Protection: Choose Valence Surface Technologies For Aerospace-Grade Chrome Coating

Our chrome coatings provide superior corrosion resistance, improved hardness and wear resistance, and enhanced aesthetics. The coatings are also easy to clean and maintain and offer excellent electrical conductivity. Our coatings are applied in a controlled environment to ensure the highest quality standards are met. We use advanced methods and materials to ensure the coatings are applied evenly and consistently.

Our experienced team of coating professionals can help you select the right coating for your application, and provide the highest quality of service. We are dedicated to ensuring your components are fully protected from corrosion and wear, and that your investment in chrome coating is an investment that will last.


Final Thoughts

Transform your aerospace components with the essential investment in chrome coating, unlocking unparalleled durability, corrosion resistance, and performance enhancement. Choose from a range of chrome coating types, including hard chrome plating, electroless nickel-chromium plating, black chrome coating, diffused chromium coating, and thin-film chrome coating, tailoring your components to meet the precise requirements of any application.

Opt for the pinnacle of quality and watch your aerospace components thrive for years to come with the perfect chrome coating solution. Request a free quote or contact us today for a comprehensive assessment of your chrome coating needs! 

Check out these blogs for more interesting news and insights:



How do you apply chrome coating?

Chrome coating can be applied to a variety of surfaces and components using several different methods. The most common is electroplating, which involves submerging the component in a solution of chromium metal and applying an electric current to the solution to deposit the metal onto the surface. Other methods include thermal spraying, where a spray of chromium particles is applied to the surface, and chemical vapor deposition, where a vapor containing chromium is applied to the surface.


What is an alternative to chrome coating?

If chrome coating is not suitable for a particular application, there are several other options available. Powder coating is a popular alternative, which involves applying a dry powder to the surface and then curing it with heat. Anodizing is another option, which involves using an electrolytic process to create a thin oxide layer on the surface. 


How long does a chrome powder coat last?

The longevity of a chrome powder coat depends on several factors, including the type of powder used, the thickness of the coating, and the environment in which it is used. Generally, a chrome powder coat should last between 5 and 10 years, depending on the conditions.


How thick is chrome coating?

The thickness of a chrome coating can vary depending on the application and the method used to apply it. Generally, electroplated chrome coatings are between 0.25 and 0.50 microns thick, while thermal-sprayed chrome coatings can be up to 10 microns thick.


Is chrome plating carcinogenic?

There is no evidence that chrome plating is carcinogenic. However, it is important to ensure that the chemicals used in the plating process are handled properly, as some of them can be toxic if inhaled or ingested.



  1. What is a Chrome Plating? – Definition from Corrosionpedia. (n.d.). Corrosionpedia. Retrieved June 14, 2023, from
  2. Trumble, B., & Lawless, P. (1997, May 1). Case study: alternatives to chromate conversion coatings for corrosion protection of zinc plated electronic shelves. IEEE Xplore. 
  3. Electro-Coating. (n.d.). Nickel Chrome Plating | Electro-Coating. Retrieved June 14, 2023, from

Our expertise and processes make doing business easy.