Epoxy coating neodymium disc magnets
Neodymium disc magnets with Epoxy coating overcome the corrosion problems associated with traditional Nickel-based coatings. This makes them ideal for outdoor use and locations where exposure to corrosive elements occurs, including Marine, Industrial and Agricultural environments. Epoxy also increases mechanical strength to the normally brittle Neodymium material and makes the magnet more durable.
However, the added cost and the air gap created by the coating make Epoxy coated magnets slightly less powerful and more expensive. Higher magnetic grades like this N50 item are used to help overcome this reduction in power. For specialized, long term use in exposed environments, Epoxy coated Neodymium magnets can provide long-lasting performance and increased durability in situations where uncoated magnets would degrade and eventually fail.

Products description
Product Name: epoxy coating neodymium disc magnet
Product Materials: Sintered NdFeB Magnet
Grade of Magnets: N52
Size of the products: D25X10mm
Coating: Black Epoxy
Working Temp.: <=80℃
Magnetic direction: Through thickness
Application:
Small round magnets is often used for craft gifts, diy toy, whiteboard, packing box ,diy design or holding tools , Big round magnet generally is used in industry, such as motor, speakers, sensors etc.
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Surface Treatment: There have many plating options like Nickel coating, Zinc, Gold, Black Epoxy, White Epoxy and so on. Zn and Nickle coating is the most popular coating. Black epoxy could protect magnets from corrosion and abrasive wear.
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Magnetic direction: Through thickness ![]() |
Caution Neodymium magnets ( Nd2Fe14B Magent ) can be dangerous, as they generate extremely strong pull forces, therefore must be handled with care to avoid personal injury and damage to the magnets. Fingers and other body parts can get severely pinched between two attracting magnets. Neodymium disc magnets are brittle, and can shatter if allowed to slam together, launching small pieces at great speeds. Eye protection should be worn when handling there magnets.
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