COATINGS TABLE

Please refer to the below table for coatings specs:

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Please Note: Coating thickness represents the base layer of nickel and/or copper + typical plating thickness.

Plating Name Color/Finish Typical Thickness Min. Time Max. Working Temp. ('C) Properties Typical Applications
PCT (120'C, RH 100%, 200KPa) Salt Spray Test (acc to ASTM-B117)
Zinc (Zn) White-blue 4-10um 24hrs 24-28hrs 120 Standalone coating with only one layer Motor magnets, Automotive industries
Black 12-24hrs 120
Ni-Cu-Ni Bright/Semi-Bright 15-25um 48hrs 48-72hrs 200 Most common used coating, price beneficial, excellent against humidity Consumer goods, Industrial magnets, Motors
Black 200
Silver (Ag) Silver 10-20um 48-72hrs 48-72hrs 200 High electric conductive Electrical components
Gold (Au) Gold 0.1-1um 200
(Melting point:
1,000)
Excellent wear resistance, high hardness, corrosion resistance, high conductivity, the gold layer is very thin Decorative
Copper (Cu) Copper 10-20um 200 Slightly weaker abrasion and corrosion resistance than Ni-Cu-Ni Speakers, Industrial magnets
Chromium (Cr) Bright 10-20um 200 Good abrasion & oxidation resistance, does not lose its shine in the atmosphere Linear motors, Automotive, Generators
Everlube Yellow >=10um 72-120hrs 72hrs 160 Superior ability of humid heat Speakers, Industrial magnets
Epoxy Assorted Colors 15-30um 48hrs 96-108hrs 200 High-corrosion resistance and chemical resistance, not shock-resistant Linear motors, Automotive, Generators
NiCuEpoxy Assorted Colors 25-45um 16-30hrs 168-1000hrs 200
Parylene Clear 1-70um N/A 24hrs 120 - 350 High reliability, light weight, low coefficient of friction, high tensile, bio-compatible Military & Aerospace, commercial
Passivation Light Gray 1-2mm 4-8hrs 4-8hrs 60 Temporary protection Normally used before over-molded or encased
PTFE
(Spray)
Typical Black
(has other color options)
20-25um Have not tested 600hrs
(provided by our factory)
250 high lubrication, best aging life in plastics,non toxic,non-stick, low coefficient of friction, high electrical strength, chemical resistance, 100% waterproof Medical, Food & Beverage
PTFE (Molded) Typical White
(has other color options)
1.5-3mm Have not tested 600hrs
(provided by our factory)
250 high lubrication, best aging life in plastics, non toxic, non stick, low coefficient of friction, high electrical strength, chemical resistance, 100% waterproof Medical, Food & Beverage
Rubber Assorted Colors ~0.5mm N/A 96-108hrs 135 Excellent adhesion, abrasion and impact resistance Holding magnets
Titanium Nitride (TiN) Golden Yellow 3-6um Have not tested 500
(Melting point:
3,000)
High hardness and wear resistance, good corrosion resistance, reduce friction coefficient, high electrical conductivity and superconductivity Medical, Industrial magnets
Rhodium Silver 0.03-0.05um Have not tested Have not tested 500
(Melting point:
2,000)
High hardness and wear resistance, good corrosion resistance, good reflective effect, very stable chemical property, good anti-oxidation and anti fog effect Medical, decorative
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