Magnets Coating / Plating - Xinfeng Magnet Inc.

NdFeB Magnets | Permanent Magnet | Sintered Neodymium Magnets

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Magnets Coating / Plating 2015-11-08

Available Coatings Of Sintered NdFeB Magnets
Surface	Coating	Thickness(Microns) of coating	Color	Resistance	Salt spray Test Standard (hours)	Pressure Coating Test Standard (hours)
Passivation		1--2um	Silver Grey	Temporary Protection	Not available	Not available
Nickel	Ni+Ni	10--20um	Bright Silver	Excellent against Humidity	24	24
Nickel	Ni+Cu+Ni	10--20um	Bright Silver	Excellent against Humidity	24	24
Zinc	ZN	3--8um	Bright Blue	Good Against Salt Spray	24	Not available
Zinc	C-Zn	3--8um	shiningColor	Excellent Against Salt Spray	48	Not available
CR3+Zinc	ZN	3--8um	Bright Blue	Good Against Salt Spray	24	Not available
CR3+Zinc	C-Zn	3--8um	shining Color	Excellent Against salt Spray	48	Not available
Tin	Ni+Cu+Sn	10-25um	Silver	Superior Against Humidity	48	Not available
Gold	Ni+Cu+Au	2--10um	Gold	Superior Sgainst Humidity	Not available	Not available
Ag	Ni+Ag	2--10um	Silver	Superior Against Humidity	Not available	Not available
Epoxy	Epoxy	10-25um	Black,Grey	Excellent Against Humidity & Salt Spray	48	Not available
	Ni+Cu+Epoxy					Not available
	Zn+Epoxy					Not available

Coating Test Standard of Nickel coating
(1).Salt Spray Test(SST): Test condition : Temperature:35C Degree,5% NaCl ,Continous spray for 24 hours. Test Standard/Criterion: Coating is good ,doesn’t get off,no bubbles,no dots.no rust appear.
(2)Pressure cooker Test (PCT): Test condition : 121C and 95% RH and 2 atmosheric pressure, test for 24 hours Test Standard/Criterion: Coating does not Get off, there are no air bubbles or dots Appear

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