Type 2 Clear Coat Anodizing: The Ultimate Guide

What is Type 2 Clear Coat Anodizing?

Type 2 clear coat anodizing is a type of anodizing that uses a clear, transparent anodic coating to protect metal parts from corrosion and wear. Unlike other anodizing processes, this type of anodizing results in a clear, colorless coating that does not change the appearance of the metal part (think macbook style). 

Benefits of Type 2 Clear Coat Anodizing

There are several benefits to using type 2 clear coat anodizing, including:

      • Improved corrosion resistance: The clear coat anodic layer provides a protective barrier against corrosion and other environmental factors that can cause metal parts to degrade over time.

      • Improved wear resistance: The clear coat anodic layer also provides added resistance to wear and tear, helping to prolong the life of metal parts, though not nearly as much as type 3 hard coat.

      • Improved appearance: Because the clear coat anodic layer is transparent, it does not alter the appearance of the metal part. This makes it an ideal choice for parts that are visible or have a specific cosmetic appearance.

      • Cost-effective: Type 2 clear coat anodizing is often less expensive than other types of anodizing and provides many of the same benefits.

    How Does Type 2 Clear Coat Anodizing Work?

    Type 2 clear coat anodizing works by using an electrolytic process to deposit a clear, transparent anodic layer on the surface of a metal part. The metal part is first cleaned and prepared, then it is immersed in an electrolyte solution and connected to a power source. A direct current is then passed through the solution, causing the metal part to become the anode and the electrolyte to become the cathode. This causes the clear coat anodic layer to be deposited on the surface of the metal part.

    Materials Suitable for Type 2 Clear Coat Anodizing

    Type 2 clear coat anodizing can be performed on a variety of metal parts, including aluminum, titanium, and other metals. However, it is most commonly used on aluminum parts due to its high resistance to corrosion and wear.

    Advantages of Type 2 Clear Coat Anodizing Over Other Anodizing Types

    There are several advantages to using type 2 clear coat anodizing over other types of anodizing, including:

        • Clear, colorless coating: Type 2 clear coat anodizing results in a clear, colorless coating that does not alter the appearance of the metal part.

        • Improved corrosion resistance: The clear coat anodic layer provides excellent protection against corrosion, making it ideal for use in harsh environments.

        • Improved wear resistance: The clear coat anodic layer also provides added resistance to wear and tear, helping to prolong the life of metal parts.

        • Cost-effectiveness: Type 2 clear coat anodizing is often less expensive than other types of anodizing and provides many of the same benefits.

        • Can be dyed: Unlike Type 3 hardcoat which does not take dye well, type 2 takes it exceptionally well which is why it’s a very much in demand coating for architecture. 

      Factors That Affect the Quality of Type 2 Clear Coat Anodizing

      There are several factors that can affect the quality of type 2 clear coat anodizing, including:

          • Electrolyte quality: The quality of the electrolyte solution used in the anodizing process can have a significant impact on the quality of the clear coat anodic layer.

          • Power source: The quality and consistency of the power source used in the anodizing process can also affect the quality of the clear coat anodic layer.

            • Temperature: The temperature of the electrolyte solution can also impact the quality of the clear coat anodic layer. Generally, temperatures between 20°C and 25°C are considered optimal for type 2 clear coat anodizing.

            • Time: The length of time that the metal part is immersed in the electrolyte solution will also impact the quality of the clear coat anodic layer. Typically, type 2 clear coat anodizing takes between 30 minutes and 2 hours, depending on the desired thickness of the anodic layer.

            • Surface preparation: The quality of the surface preparation before anodizing can also affect the quality of the clear coat anodic layer. The metal part must be thoroughly cleaned and free of any contaminants before the anodizing process begins.

            • Process controls: Without consistency in the process, there will be no consistency in the end result. To ensure repeatability, the process needs to be “locked in” via POR. 

          How to Choose the Right Type 2 Clear Coat Anodizing Service

          When choosing a type 2 clear coat anodizing service, there are several factors to consider, including:

              • Quality of the anodizing process: Look for a service that uses a high-quality electrolyte solution and power source to ensure a consistent and high-quality clear coat anodic layer.

              • Turnaround time: Consider how quickly you need your metal parts to be anodized and choose a service that can meet your timeline.

              • Cost: Make sure to compare the cost of different type 2 clear coat anodizing services to ensure that you are getting the best value for your money.

            • Experience and reputation: Look for a type 2 clear coat anodizing service that has a strong reputation and years of experience in the industry.

            Overall, Type 2 clear coat anodizing is an effective and cost-efficient way to protect metal parts from corrosion and wear. By following the right process and choosing a high-quality service, you can ensure that your metal parts are protected and preserved for years to come.

            FAQs

            Can type 2 clear coat anodizing be performed on other metals besides aluminum?

            Yes, type 2 clear coat anodizing can be performed on other metals besides aluminum, including titanium and other metals. However it is less common. 

            How long does type 2 clear coat anodizing take?

            The length of time that type 2 clear coat anodizing takes can vary, but it typically takes between 30 minutes and 2 hours. The thickness buildup is usually a mil an hour or so. 

            What factors can affect the quality of type 2 clear coat anodizing?

            The quality of type 2 clear coat anodizing can be affected by factors such as the quality of the electrolyte solution, the power source, the temperature, the time, and the surface preparation as discussed early. 

            Is type 2 clear coat anodizing more expensive than other types of anodizing

            No, type 2 clear coat anodizing is often less expensive than other types of anodizing and provides many of the same benefits. That said, there is little cost difference between hard coat and clear coat at Semano. It is only cheaper when compared to our other coatings like AX200. 

            Can type 2 clear coat anodizing be used in harsh environments?

            To an extent, type 2 clear coat anodizing can provide mild corrosion resistance. However, for plasma environments and the like, it’s a much different story and hard coat is recommended. 

            What’s the dielectric strength of clear coat?

            Typically much lower than hard coat, usually in the 800-1000 volts range, depending on the thickness.