We are the Top Anodizing Company in Dubai, UAE
Skye Metal Coating LLC is a Dubai Municipality certified Anodizing company located in Dubai, UAE. We have serviced more than 1000 clients, as of May 2023, for anodizing. This includes aerospace, military and commercial companies. Our company is an ISO 9001 certified company that follows ASTM and MIL standards. For any aluminium anodizing service, please call us at 0507045388
What is Anodizing? Can Anodizing be done on any metal?
Anodizing is a metal finishing process used to increase the thickness of the oxide layer on the surface of a substrate (Aluminium or Titanium). (No, Anodizing process cannot be done on steel) Aluminium or Titanium oxide that is formed generally occupies more space than the base metal converted. The treated part forms an anode electrode that is used to complete an electrical circuit. General benefits of anodization are similar to many of those provided by electroplating and include:
- Increased corrosion resistance
- Enhanced resistance to wear and tear
- Improved surface hardness
- Increased aesthetic appeal
- Lengthened part/component lifespan
Applications of Anodizing Aluminium
General anodizing applications in terms of aerospace metal finishing include providing a protective coating on engine parts and components, landing gear, air-frames and actuators. Since we pioneer in this field, we are rated one of the top anodizing companies in UAE.
Types of anodizing services in Skye metal coating
This anodizing process (Type 1) entails the use of chromic acid to create a thin, electrically non-conductive aluminum oxide film. Moreover, this type of coating is best suited for use with aluminum flight-critical components like landing gear that are routinely subjected to high levels of stress.
Aluminum anodizing (Type 2) is used to enhance the substrate’s corrosion and wear resistance. Sulfuric acid is used to create a thicker aluminum oxide film than with Type 1 anodizing. The coating can be clear or in colors such as black, green, red, gold and blue.
Hard coat anodizing (Type 3) uses a combination of relatively low plating bath temperature and constant rectification of the electrical current to develop an extremely hard oxide film coating. The coating can range from light to dark gray in color and can even be dyed black if desired. Hard coat anodizing provides substantial corrosion protection and wear resistance, along with excellent lubricity.
Aluminium Anodizing Process Steps and How does the Anodizing process work?
Aluminium anodizing is usually performed in an acid solution, typically sulfuric acid or chromic acid, which slowly dissolves the Aluminium oxide. The acid action is balanced with the oxidation rate in order to produce a coating with Nano pores. These pores are the ones that let the electrolyte solution and current to get to the Aluminium substrate. It also helps in increasing the thickness of the coating to a higher degree than the thickness produced by auto-passivation. These pores allow the dye to be absorbed. However, this must be followed by sealing or else the dye will not adhere to the material. This process is typically followed by a clean nickel acetate seal [Ref]. Since the dye is just superficial, the underlying oxide might continue to provide corrosion protection even if few small wear and tear may break through the dyed layer. Conditions like electrolyte concentration, acidity, solution temperature, and current must be controlled to allow the formation of a consistent oxide layer.
Thickness of the Aluminium oxide layer:
Generally, harder and thicker films can be produced by more dilute solutions at lower temperatures with higher voltages and currents. The thickness of our anodizing process is generally between 2.5 μm and 50 μm.  The build-up is half of the total thickness as half of the anodizing layer penetrates the base metal. The aluminium oxide makes the surface of the aluminum harder. In addition, it also keeps the naturally occurring oxide from rubbing off the aluminum in your palm. Additional corrosion protection comes from the sealer that is applied after the anodizing process by placing the metal salts in the pores of the metal oxide coating.
Clear (Class 1) and Anodized Color finish (Class 2):
The anodized aluminum coating can be dyed into different colors with the help of high quality dyes. Â A rainbow of colors are available and we typically have these basic colors in stock: black, red, green, gold, violet, Yellow, brown & blue. Â It should be noted that these organic dyes will fade from UV radiation in sunlight. However, compared to other anodizing companies in Dubai, UAE, the dyes used in our company lasts longer due to their UV protective properties.
Standard Specification No
ASTM: B 253 – 17           Aluminium Surface Preparation
ASTM: B 322 – 14           Degreasing prior to Anodizing
ASTM: B 580 – 19      Anodic Oxide Coatings on Aluminium
We are rated as the top anodizing companies in the entire UAE.
Frequently Asked Questions
Q: What is anodizing service?
A: Anodizing service is a surface treatment process that involves creating an oxide layer on the surface of metal objects, typically aluminum. It enhances the corrosion resistance, durability, and aesthetic appeal of the metal.
Q: How much does anodizing service cost?
A: The cost of anodizing service depends on factors such as the size, complexity, and quantity of the objects being anodized, as well as the specific requirements of the project. Skye Metal Coating provides customized quotes based on these factors and ensures competitive pricing. Typically few hundred dirhams for small items.
Q: What industries use anodizing?
A: Anodizing finds extensive use in various industries, including automotive, aerospace, construction, electronics, and consumer goods. It is commonly employed to enhance the appearance and protect aluminum components in these industries.
Q: What is the anodizing process?
A: The anodizing process involves immersing the aluminum object in an electrolyte bath and applying an electric current. This creates a controlled oxidation reaction, forming a thick and durable oxide layer on the surface of the aluminum. The oxide layer can be further enhanced with coloring or sealing processes to achieve desired properties and finishes.
Q: What are the benefits of anodizing?
A: Anodizing offers several benefits, including increased corrosion resistance, improved durability, enhanced aesthetic options, electrical insulation, and better paint adhesion. It also provides a protective layer that helps to maintain the original appearance of the metal over time.
Q: Can anodizing be done on metals other than aluminum?
A: While anodizing is most commonly associated with aluminum, it can also be applied to other metals such as titanium and magnesium. However, the process and requirements may vary depending on the specific metal being anodized.
Q: Does anodizing change the dimensions of the object?
A: Anodizing typically adds a thin layer of oxide to the surface of the metal, resulting in minimal dimensional changes. However, it is important to consider the thickness of the anodic layer in precise applications where tight tolerances are critical.
Q: How long does the anodizing process take?
A: The duration of the anodizing process depends on factors such as the size and complexity of the object, as well as the specific anodizing requirements. Simple projects may take a few hours, while more intricate or larger-scale jobs can extend to several days.
Q: Can anodized surfaces be colored?
A: Yes, anodized surfaces can be colored using various techniques, such as dyeing or electrolytic coloring. This allows for a wide range of vibrant and durable color options, offering versatility in design and aesthetic customization.
Q: Is anodizing environmentally friendly?
A: Anodizing is generally considered an environmentally friendly process. The anodizing baths typically use non-toxic and water-based electrolytes, and the resulting oxide layer provides increased durability, reducing the need for frequent replacements or maintenance.
Please contact us below for Anodizing service!