Introduction

The application of powder coating, which is applied as a free-flowing, dry powder is a surface finishing technique used to create a hard finish tougher than normal paint. Powder coating is mainly used to coat metal parts, such as those used in household appliances.

MaterialColorApplicationsStandards
Aluminum,  Stainless Steel, SteelBlack, any RAL code or Pantone number.Vehicle parts, household appliances, aluminum extrusionsGloss, semi-gloss, flat, metallic, textured

Pros and Cons

Advantages: no need for thinners, no toxicity, no environmental pollution, good coating quality, very high adhesion and mechanical strength, corrosion resistance, short curing time, no need for primer, low technical requirements from workers, high utilization rate of powder recovery.

Disadvantages: coating very thick, surface effect corrugated, not smooth, only semi-matte, breaks down under UV rays.

Design Considerations

  • The added thickness of the coated layer makes it necessary to plug and mask holes or other tolerance-tight surfaces that will play a functional role.

  • Pricing of powder coats can be inconsistent between colors, finishes and part geometry.

  • Most polymers used for powder coating have poor electrical conductivity.

surface finish - powder coating

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