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Corrosion Resistance

NdFeB material is easily oxidized when exposed to air, coating is necessary to protect it. We provide with all kinds of coating for magnets according to customer's applications. Even uncoated, our magnets have excellent corrosion resistance to assure super long life time. They perform superiorly in HAST tests under extremely high temperature, high pressure and high humidity conditions.Almost every neodymium magnet will be electroplated or coated. The main reason why magnets need surface treatment is to protect their surfaces from corrosion and damage, and to enhance their service life and performance. At present, the main coating technologies of magnets are: zinc plating, nickel plating, chromium plating, gold plating, silver plating, black nickel, epoxy and colored zinc,etc.

NdFeB magnets coating

The coating of magnets

Magnets substrate

Surface treatment can also improve the adhesion and corrosion resistance of magnets. By choosing proper surface treatment methods, magnets can adapt to different working environments and application requirements. Therefore, surface treatment is very important for the stability, reliability and life of magnets.

Company: Fuzhou AOMAG Magnetics Co.,Ltd.
Add: Jinshan Industrial Zone, Cangshan, Fuzhou, P.R,China
Tel: 86-0591-86397993    Fax: 86-0591-86399173
Mail:     Skype: Danielle.omagnet
AOMAG Magnetics is a professional manufacturer and exporter of permanent magnet (NdFeB, Alnico, Smco & Ferrite) and Magnetic Assemblies in China since 1996. AOMAG Magnetics, the leading magnet brand in China. Our annual production capacity is 8000 tons. We own a complete production chain and perfect quality assurance system. We are an IATF 16949:2016, ISO 14001:2015 & ISO 45001:2018 certified company. 
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