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Coating

Coating Options of Neodymium Magnets

Nickel:Ni + Cu + Ni, total thickness of the coating Ni + Cu + Ni is>= 10 Micron
Silver:Ni + Cu + Ni + Ag, total thickness of the coating Ni + Cu + Ni is>= 10 microns, Ag is 1 ~ 2 microns
Gold:Ni + Cu + Ni + Au, total thickness of the coating Ni + Cu + Ni is>= 10 Micron, Au is 1 ~ 2 Micron
Epoxy:Total thickness of the coating is>= 10 Micron
Zinc:Total thickness of the coating is>= 6 Micron
Tin:Ni + Cu + Ni + Sn, total thickness of the coating: Ni + Cu + Ni + Sn is 10-12 Micron
Chromium :Ni + Cu + Ni + Cr, total thickness of the coating Ni + Cu + Ni is>= 10 microns, Cr is 1 ~ 2 microns

coatings and surfaces of neodymium magnets

Interface Type minimum layer thickness Surface Color Properties
Neutralization <= 1μ Silver Gray temporary protection
Nickel Ni + Ni 10-20μ silvery silver excellent resistance in humid environments
Ni + Cu + Ni excellent resistance in humid environments
Zinc Zn 8-20μ Blue White glossy glowing color good saltwater resistance
C-Zn excellent saltwater resistance
Tin Ni + Cu + Sn 15-20μ Silver satin excellent resistance in humid environments
Gold Ni + Cu + Au 10-20μ shiny gold excellent resistance in humid environments
Copper Ni + Cu 10-20μ shiny gold Temporary treatment
Epoxy Ni + Cu + Epoxy 15-25μ Black excellent climate and saltwater resistant
Zn + Epoxy
chemical coating Ni 10-20μ silvery silver excellent resistance in humid environments