Standard or minimal surface treatments used to clean, smooth, or prepare parts for further finishing.
As Machined
Standard finish (3.2 μm / 125 μin Ra); parts are cleaned and deburred, with no additional surface finishes applied.
Machining marks
Visible, minor surface scratches
Services
CNC machining, Sheet metal fabrication
Applicable Materials
Metals, Plastics
Sanding
Sanding uses abrasives to remove imperfections, smooth edges, and prepare surfaces for finishing.
Machining marks
Reduced but visible
Services
CNC machining
Applicable Materials
Metals, Plastics, Wood
Polishing
Polishing uses abrasives or compounds to reduce roughness and create a smooth, reflective appearance.
Machining marks
Glossy or mirror-like finish
Services
CNC machining
Applicable Materials
Metals, Plastics
Surface Texturing
Abrasive blasting processes that remove surface contaminants and create uniform, textured finishes.
Sand Blasting
Using compressed air to blast abrasive media effectively removes rust, scale, and surface contaminants.
Machining marks
Uniform roughness, slightly abrasive feel
Services
CNC machining, Sheet metal fabrication
Applicable Materials
Metals, Plastics, Glass, Ceramics
Bead Blasting
Small glass beads or abrasive materials blast surfaces at high pressure, ensuring gentle cleaning and a uniform finish.
Machining marks
Matte or satin surface
Services
CNC machining, Sheet metal fabrication
Applicable Materials
Metals, Plastics, Glass, Ceramics
Coating & Painting
Protective or decorative layers are applied to the parts to enhance durability, corrosion resistance, or appearance.
Powder Coating
A dry powder is electrostatically applied and cured under heat to form a durable, uniform, and colored finish.
Machining marks
Removed
Services
CNC machining, Sheet metal fabrication, Injection molding
Applicable Materials
Metals, some heat-resistant plastics
Painting
Painting applies liquid coatings to material surfaces for protection, aesthetics, or functional finishes.
Machining marks
Partially visible
Services
CNC machining, Sheet metal fabrication, Injection molding, 3D printing
Applicable Materials
Metals, Plastics, Wood, Composites
E-Coating
E-Coating uses an electrically charged bath to deposit a uniform, corrosion-resistant paint layer onto metal surfaces.
Machining marks
Hidden
Services
CNC machining, Sheet metal fabrication
Applicable Materials
Steel, Aluminum, Zinc, Cast Iron
Electroplated & Metal Coatings
Metallic coatings are deposited via electroplating to resist rust and improve aesthetic appeal.
Electroplating
Electroplating deposits a metal coating onto a conductive surface using an electric current. Commonly used metals include nickel, zinc, and chrome.
Machining marks
Partially hidden
Services
CNC machining, Sheet metal fabrication
Applicable Materials
Metals
Zinc Plating
Also known as electrogalvanizing, this process applies a thin zinc layer via electroplating to prevent corrosion and enhance appearance.
Machining marks
Partially hidden
Services
CNC machining, Electroplating
Applicable Materials
Steel, Iron, Brass
Nickel Plating
Nickel plating deposits a thin layer of nickel onto metal surfaces. Available as electrolytic or electroless plating.
Machining marks
Partially hidden
Services
CNC machining, Sheet metal fabrication
Applicable Materials
Steel, Copper, Brass, Aluminum
Chemical Treatments
Chemical surface treatments that modify metal surfaces for enhanced corrosion resistance and performance.
Anodizing
Anodizing thickens the metal’s oxide layer, enhancing corrosion resistance and enabling optional coloring. Types 1, 2, and 3, along with Chemical Film/Alodine.
Machining marks
Visible
Services
CNC machining, Sheet metal fabrication
Applicable Materials
Aluminum, Titanium
Passivation
Chemically removes free iron and contaminants from metal surfaces, enhancing corrosion resistance.
Machining marks
Visible
Services
CNC machining, Sheet metal fabrication
Applicable Materials
Stainless Steel, Other Corrosion-resistant Alloys
Chromate Conversion Coating
A chemical surface treatment for aluminum and magnesium alloys that improves corrosion resistance and paint adhesion.
Machining marks
Visible
Services
CNC machining, Sheet metal fabrication
Applicable Materials
Aluminum, Magnesium alloys
Black Oxide Coating
Creates a thin black oxide layer on ferrous metals to enhance corrosion resistance and prevent oxidation.
Machining marks
Visible
Services
CNC machining, Sheet metal fabrication
Applicable Materials
Steel, Iron
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