Magnet Coating & Surface Treatment
 

The sintered neodymium-iron-boron permanent magnet (sintered ndfeb magnets) is a chemically active powder metallurgical material, which is characteristic of being hard and brittle easy oxidization and erosion. Based on it’s features the most effective way is apply surface or coating As on the surface of sintered NdFB magnetic material, empty holes or oxidization phase occurred by matching may exist .The surface treatment should undergo pre-treatment procedure and have appropriate plating .


Available Coatings:
Su rface
Coating
Thickness (Microns)
Color
Resistance
Passivation
1
Silver Grey
Temporary Protection
Nickel
Ni+Ni
10-20
Bright Silver
Excellent against Humidity
Ni+Cu+Ni
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
Ni+Cu+Epoxy
Zn+Epoxy
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.