Sintered NeFe magnets coating

The sintered neodymium-iron-boron magnet is made of chemically active metallurgical material, which is characteristic of being hard and brittle, easily oxidised and prone to erosion. Based on these features, the most effective way to protect the magnet is to apply a surface or coating. The surface treatment should undergo a pre-treatment procedure and have appropriate plating.


Black Epoxy

Nikel Cuprum

Blue White Zinc

White zinc


Colour zinc

Available Coatings:

Surface Coating Thickness (Microns) Color Resistance


1 Silver Grey Temporary Protection
Nickel Ni+Ni 10-20 Bright Silver> Excellent against Humidity
Zinc Zn 8-20 Bright Blue Good Against Salt Spray
C-Zn Shinny Color Excellent Against Salt Spray
Tin Ni+Cu+Sn 15-20 Silver Superior Against Humidity
Gold Ni+Cu+Au 10-20 Gold Superior Against Humidity
Copper Ni+Cu 10-20 Gold Temporary Protection
Epoxy Epoxy 15-25 Black, Red, Grey Excellent Against Humidity
& Salt Spray
Chemical Ni 10-20 Silver Grey Excellent Against Humidity
Parylene Parylene 5-20 Grey Excellent Against Humidity, Salt Spray.Superior Against Solvents, Gases, Fungi and Bacteria.FDA Approved.