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Powder Coating

Process introduction:
The powder coating process is to spray on the surface of the parts with an electrostatic spray machine. Under the work of static electricity, the powder will be uniformly adsorbed on the surface of the workpiece to form a powder coating layer. The powder is cured by high temperature baking and leveling, so that different spraying effects are obtained by using different powder.
Our treatment process:
Degreasing->Rinsingg->Rinsing(pure water best)>nano-oxide film->Rinsing->Pure water rinsing>Drying >Painting
a) Free phosphate and nickel and chromium heavy metals. (RoHs/CALIFORNIA PROP. 65 COMPLIANT)
b) Almost no sediment during the process, which reduces the waste water treatment and environmental burden.
Powder coating effect: we can do satin, semi-matte, matte, sand grain, hammer grain, crack grain and other different effects.
Our standard test:
a) Salt spray test
b) Impact test
c) Bending test
d) Cross-cut test, adhesion test
f) Pencil hardness test
g) Color difference/chromatic aberration detection
h) Gloss check
i) Thickness test
Additional test per customer's request:
a) RoHs test
b) UV test
c) Damp heat test
d) Xenon lamp test, Florida exposure test

Our powder coating customizing process:

customer offers us color chips/color samples/color code(for example Pantone)>> Meco customizes powder sample>>Trial coating>>powder coating test(inlcuding color, gloss and function)>>Customer's approval of powder>>mass production

  • Capable size: 1mx1m, weight 30Kg.

  • powder coating thickness: 60~100um, by film thickness tester for each batch.

  • Hardness: minimum 2H

  • Indoor or outdoor powder to be customized, salt spray test can be up to 2,000Hrs.

  • Brand of powder we use: Akzo Nobel, Dupont, Tiger,TCI,Sherwin

  • For high request of corrosion resistance and weather resisitance, the pretreatment could be Anodizing or Zinc plating.


Meco is dedicated in providing customers high quality OEM/ODM services, full quality control from product developing, to manufacturing, packaging and shipping, to satify customers' various purchasing needs. 



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