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Coatings

Please refer to the below table for coatings.

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Plating Name Color Typical Thickness
Min. time
PCT (120°C, RH 100%, 200KPa) Salt Spray Test acc to ASTM- B117)
Max. Working Temperature (°C) Properties Typical application examples
Zn
White-blue
Color
Black
4-10um
24hrs
48hrs
12-24hrs
24-48hrs
120
120
120
Standalone coating with only one layer Motor magnets, automotive industries
Ni-Cu-Ni
Bright/Semi-Bright
Black
15-25um 48hrs 48-72hrs
200
200
Most common used coating, price beneficial, excellent against humidity Consumer goods, industries magnets, motors
Ag Silver 10-20um 48-72hrs 48-72hrs 200 High electric conductive Electrical components
Au Gold 10-15um 200 Excellent wear resistance, high hardness, corrosion resistance, high conductivity, the gold layer is very thin Decorative
Cu Copper 10-20um 200 Slightly weaker abrasion and corrosion resistance than Ni-Cu-Ni
Cr Bright 10-20um 200 Good abrasion & oxidation resistance, does not lose its shine in the atmosphere
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-resistanct Linear motors, automotive, generators
NiCuEpoxy Assorted Colors 25 - 45um 16 - 30hrs 168 - 1000hrs 200
Parylene Clear 3-10um N/A 24hrs 150 High reliability, light weight, low coefficient of friction, high tensile, bio-compatible Military & aerospace, commercial
Passivation Light Gray 1-2 4-8hrs 4-8hrs 60 Temporary Protection Normally used before over-molded or encased
Teflon (PTFE) White >=0.5mm 72-120hrs 120hrs 260 Non-stick, low coefficient of friction, non-wetting, high electrical strength, chemical resistance, 100% waterproof Medical, Food & Beverage
Rubber Black ~0.5mm N/A 96 - 108hrs 135 Excellent adhesion, abrasion and impact resistance Holding magnets

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