China Neodymium And Ferrite Magnets Manufacturer & Supplier 
Bonded ndfeb is also a type of neodymium magnet, which is different from the manufacturing process of sintered neodymium iron boron. Generally, it is mainly composed of ring multiple magnetic poles and is widely used in fields such as electronics, electrical appliances, automobiles, machinery, etc. Currently, most of the bonded neodymium magnets you can see on the market are epoxy coated? What is the reason for this? Next, the courage magnet supplier will introduce this coating to you.
Bonded NdFeb magnets usually need surface protection to prevent oxidation and corrosion to improve their durability and service life. Electroplating is one of the commonly used surface treatment methods, and epoxy electroplating is the commonly used electroplating method of bonded NdFeb magnets, for the following reasons:
Below is a black epoxy coating bonded to a neodymium ring magnet, with white markings on the surface and, more commonly, gray epoxy.
1、Good corrosion resistance: epoxy plating can form an epoxy resin coating with good corrosion resistance on the surface of the magnet, effectively preventing oxidation and corrosion, thus protecting the performance and life of the magnet.
2、Wear resistance: epoxy coating has good mechanical strength and hardness, which can effectively protect the surface of magnet and improve its durability.
3、Good electrical insulation performance: The epoxy electroplating coating has excellent electrical insulation performance, which can prevent short circuits or leakage of conductive parts on the surface of the magnet, and improve the safety and stability of the magnet.
4、No hanging point.
5、Salt spray resistance up to 72H
Magnet electroplating black epoxy is an effective surface treatment process that can improve the service life and aesthetics of magnets. It is suitable for magnets that need to be used in harsh environments.
Selection of bonded neodymium magnet specification size;
Learn more about bonded neodymium magnets;
Molded Bonded NdFeB vs Injection NdFeB Magnets
Bonded NdFeB Physical Characteristics and Properties DataSheet