Black Epoxy Coated Neodymium Disc Magnets Rare Earth Countersunk Magnet with M3 M4 M5 M6 M8 screw Hole
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Characteristics of Epoxy Coated Countersunk Magnets
Excellent against humid: epoxy coated countersunk neodymium magnets have advantage of humid resistance.
Excellent against salt-spray: neodymium countersunk magnets plated with epoxy have advantage of salt-spray resistance.
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Black Epoxy Neodymium Magnets (Neodymium Magnets With Black Epoxy Coating)
Epoxy coatings are known for their excellent mechanical properties such as hardness and durability, as well as abrasion resistance, impact and chemical resistance. These properties make epoxy coatings ideal for neodymium magnets. Epoxy-coated neodymium (Ndfeb) magnets are a good choice if you are looking for a neodymium magnet suitable for use outdoors or in humid environments because they are strong waterproof magnets. Epoxy coating is more durable and slip resistant than Ni-Cu-Ni triple coating. Neodymium rare earth magnets with epoxy coating are usually in black back, so they are also called black epoxy neodymium magnets. Other color for epoxy coated neodymium can be customized.
Applications of Epoxy Coated (Waterproof) Magneter
Epoxy coated magnets are widely used in industries requiring waterproof, anti-corrosion, or outdoor durability, Inklusive:
Marine and Offshore Equipment – Anchors, underwater sensors, and navigation devices.
Automotive and Electric Vehicles – Components exposed to moisture, oil, or chemicals.
Aerospace and Defense Systems – For reliable performance in high-humidity or temperature-variable environments.
Medical and Laboratory Equipment – Suitable for sterilized, chemical-resistant, or cleanroom environments.
Renewable Energy Systems – Used in wind turbines, hydroelectric sensors, and outdoor monitoring systems.
Consumer Electronics – Waterproof magnetic connectors, wireless charging modules, and earphone closures.
Industrial Manufacturing – Fixtures, jigs, and holding tools exposed to coolant or lubricant.
Why Choose Epoxy Coated Magnets?
Ideal for Long-Term Outdoor Use – Withstand humidity, rain, and temperature changes without corrosion.
Reliable Magnetic Strength – Retains strong holding power while staying fully protected.
Cost-Effective Protection – More affordable than full encapsulation but provides superior durability.
Environmentally Friendly Option – Epoxy coating is RoHS and REACH compliant, ensuring safety for industrial and consumer
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