Surface Finishing
Service

Our Surface Finishing Capabilities

Use us as your one-stop solution for both manufacturing and surface finishing of your custom parts, reducing the risk of production. Here is a list of standard surface finishes. For custom surface finishes such as laser cutting or hard anodizing, please contact: info@wjprototypes.com

Polishing

Polishing refers to the use of mechanical, chemical or electrochemical action to reduce the surface roughness of the product to obtain a bright and smooth surface. It is the modification of the surface of the product with polishing tools and abrasive particles or other polishing media.

• Applicable Materials
  PC, PMMA, Steel, Stainless steel, brass, copper, Aluminum, etc
• Texture
  Smooth, glossy finish
• Surface roughness
  Ra 0.2μm / Ra 32μm
• Function
  Reduce product surface roughness, improve product appearance

Anodizing

Anodizing refers to the electrochemical anodizing of metals or alloys. Under the corresponding electrolyte and specific process conditions, aluminum and its alloys form an oxide film on the aluminum product (anode) due to the action of the applied current.

• Applicable Materials
  Aluminum
• Colors
  Any RAL code or Pantone number
• Thickness
  5-20μm
• Function
  Make the products not easy to be scratched, not easy to be corroded

Sandblasting

Sandblasting is the process of cleaning and roughening the surface of the substrate by the impact of high-speed sand flow. Due to the impact and cutting effect of abrasives on the surface of the product, the surface of the product can obtain a certain degree of cleanliness and different roughness.

• Applicable Materials
  Aluminum, Steel, Stainless Steel, Brass, Copper
• Colors
  Natural color of raw material
• Thickness
  Uniform matte
• Function
  Improve the mechanical properties and fatigue resistance of the product, and increase the service life of the parts

Painting

This is a coating process that uses corona discharge to make powder coatings adhere to the product. A wide variety of colors are available to create the desired aesthetic.

• Applicable Materials
  Aluminum, Steel, Stainless Steel
• Colors
  Any RAL code or Pantone number
• Thickness
  200-300μm
• Function
  Improve product appearance. Make products more wear-resistant and corrosion-resistant

Powder Coating

It refers to the treatment method of chemically reacting metal with chromate to form a stable chromate film on its surface.

• Applicable Materials
  Aluminum
• Color
  Clear, Yellow
• Applications
  Tools, hardware, electrical systems
• Function
  Increase the corrosion resistance of product while maintaining their conductive properties.

Passivation

Passivation refers to the process in which the metal is oxidized by a strong oxidant or electrochemical method to make the surface into an inactive state.

• Applicable Materials
  Steel, Stainless Steel
• Colors
  Natural color of raw material
• Texture
  Smooth glossy finish
• Function
  Make products more corrosion-resistant. Increase the service life of the parts

Zinc Plating

This process is done by coating the part in a flux and dipping the part into molten zinc. The molten zinc forms a bond with the steel, creating a protective layer on the surface of the part.

• Applicable Materials
  Steel, Stainless Steel
• Texture
  Smooth finish
• Can be applied with
  Sandblasting, Passivation
• Function
  Prevent product surface oxidation or corrosion

Electropolishing

Electropolishing is an electrochemical process used to clean metallic surfaces and reduce micro-roughness of stainless steel parts. Useful to remove a thin (up to 10μm) layer of material.

• Applicable Materials
  Steel, Stainless Steel
• Texture
  Smooth, glossy finish
• Color
  Natural color of raw material
• Function
  Improve surface finish

Nickel Plating

Nickel plating is a process used to electroplate a thin layer of nickel onto a metal part.

• Applicable Materials
  Aluminum, Steel, Stainless Steel
• Texture
  Smooth finish
• Can be applied with:
  Sandblasting, Painting
• Function
  Make the product resistant to corrosion and abrasion, as well as for decorative purposes