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    Neodymiun coatings

    Published: 2023-02-21 14:15:12 • Daniel Gårdefelt

    When producing a neodymium magnet, it requires some sort of protection, a coating.
    Click here for a more detailed page of all the coatings and their attributes.

    Most common are:

    Nickel plating is the most common neodymium magnet coating. Nickel provides good corrosion resistance and durability, as well as a bright and shiny appearance to the magnet. Nickel-plated neodymium magnets are commonly used in a wide range of applications such as motors, generators, and sensors.

    Zinc plating: Zinc plating is less expensive than nickel plating and provides good corrosion resistance. Zinc-plated neodymium magnets are frequently used in applications where cost is an important consideration, such as the automotive industry.

    Epoxy coating: Epoxy is a non-metallic coating that is highly durable and corrosion resistant. Epoxy-coated neodymium magnets are frequently used in harsh environments such as marine or aerospace applications, or when the magnet will be exposed to chemicals or solvents.

    Gold plating: Because gold has excellent corrosion and oxidation resistance, it is a popular coating for neodymium magnets used in high-end applications. Gold-plated magnets are frequently used in medical equipment, jewelry, and luxury items.

    Black oxide coating: A decorative and long-lasting coating that provides a matte black finish. While black oxide-coated neodymium magnets are not as corrosion-resistant as other coatings, they are frequently used in decorative or aesthetic applications.

    The coating used on a neodymium magnet is determined by the application and the desired level of corrosion resistance and durability. Each type of coating has advantages and disadvantages, so when choosing a coating for a neodymium magnet, it is critical to consider all factors. Coatings can improve the physical properties of a magnet, such as its strength, temperature resistance, and stability, in addition to protecting it from corrosion. Overall, the coating chosen for a neodymium magnet is an important factor in ensuring the magnet's long-term performance and reliability.

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