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Exploring the World of Surfacing Treatments for Metal Fabrication Parts

Metal fabrication is an essential process in various industries, and the quality and durability of the finished parts often depend on the surfacing treatments applied. These treatments not only enhance the aesthetic appeal of the metal parts but also improve their resistance to corrosion, wear, and other forms of damage. In this blog, we will delve into the fascinating world of surfacing treatments for metal fabrication parts, exploring a range of techniques and their applications.

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  1. Electroplating

Electroplating is a popular surfacing treatment that involves depositing a layer of metal onto a substrate using an electrolytic process. Common metals used for electroplating include chromium, nickel, and zinc. This treatment offers several benefits, such as corrosion resistance, improved appearance, and enhanced electrical conductivity.


  • Decorative finishes on automotive and household fixtures.
  • Corrosion-resistant coatings on machine components and fasteners.
  1. Powder Coating

Powder coating is a dry finishing process that involves applying a free-flowing, dry powder to a metal surface. The coated part is then cured using heat, allowing the powder to melt and form a hard, durable finish. This technique offers an array of colors and textures and is known for its environmental friendliness, as it generates minimal waste.


  • Outdoor furniture, fences, and metal signs.
  • Automotive parts, including wheels and bumpers.
  1. Anodizing

Anodizing is an electrochemical process that converts the surface of aluminum into a durable, corrosion-resistant, and decorative finish. It involves immersing the aluminum part in an electrolyte solution and applying an electrical current. The resulting oxide layer can be dyed to achieve various colors.


  • Aircraft components and architectural structures.
  • Consumer electronics and sporting goods.
  1. Thermal Spray Coating

Thermal spray coating is a versatile surfacing treatment that involves spraying a wide range of materials, such as metals, ceramics, and polymers, onto a metal surface. The sprayed particles adhere to the substrate, creating a protective and wear-resistant layer.


  • Gas turbine components in the aerospace industry.
  • Industrial equipment for protection against abrasion and corrosion.
  1. Passivation

Passivation is a chemical process used to remove free iron from the surface of stainless steel, creating a passive film that enhances the metal's corrosion resistance. This treatment is crucial for maintaining the longevity and appearance of stainless steel parts.


  • Medical devices, food processing equipment, and marine components.
  • Architectural structures and jewelry.
  1. Galvanization

Galvanization is the process of applying a layer of zinc to the surface of steel or iron to protect it from corrosion. There are two primary methods: hot-dip galvanizing and electro-galvanizing, each suited to specific applications.


  • Construction materials like steel beams and guardrails.
  • Agricultural equipment and automotive parts.
  1. Metal Polishing

Metal polishing is a finishing process that enhances the appearance of metal surfaces by removing imperfections and creating a smooth, shiny finish. Various techniques, including abrasive polishing and chemical polishing, can be used to achieve different levels of gloss and smoothness.


  • Jewelry and decorative household items.
  • Aerospace components and medical instruments.


Surfacing treatments for metal fabrication parts play a vital role in enhancing their durability, appearance, and functionality. The choice of treatment depends on the specific requirements of the part and the intended application. By understanding the various surfacing options available, manufacturers can ensure that their metal fabrication parts meet the highest standards of quality and performance. Whether you're looking for corrosion resistance, improved aesthetics, or enhanced wear resistance, there is a surfacing treatment that can meet your needs.

About Openex

Openex is home to a full-service, one-stop-shop, contract manufacturing company producing custom large machined parts and fabrications. Our full large fabrication services including large machining, cutting, welding, rolling, punching, braking, testing, painting, and others.
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