Finishing Services

If you need your parts produced with Xometry to be further post-processed, you can indicate it in the Instant Quoting Engine and choose from 40+ finishing options in just a few clicks.

Xometry will work with you from design to production, right through to the finishing of your parts to achieve the required surface finish and functionality.

Quote Your Parts With One of 40+ Finishes

to improve the surface and the aesthetic and functional properties of your parts

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Surface Treatments

  • Bead blasted

    Bead blasting

    Bead blasting involves spraying a pressurised stream of tiny beads of media, plastic or glass beads, from a nozzle onto the surface of the part. This removes the burrs and imperfections, leaving a smooth finish.

    Final result:

    • Slightly grainy in the touch
    • Uniform, matte or satin-like appearance
  • Electropolishing (3D render)

    Electropolishing

    An electrochemical process that cleans steel parts to reduce corrosion and improve appearance by making the metal brighter.

    Final result:

    • Reduced corrosion
    • Brighter appearance
  • Injection moulding SPI surface finishes

    SPI

    SPI finishes are a set of standard mould finishes with different polished textures for enhanced properties.

    Notes:

    We recommend providing a CMF (Colour/Material/Finishing) that defines the visual and tactile characteristics of a product, ensuring design consistency and manufacturing accuracy.

    Final result:

    • Heavily polished, from semi-gloss to fine and coarse matte depending on the selection
    • A1, A2, A3, B1, B2, B3, C1, C2, C3, D1, D2, D3
  • Injection moulding VDI surface finishes

    VDI

    VDI is an international standard for mould texturing of matte surfaces. It is mainly processed by Electrical Discharge Machining (EDM) when mould machining.

    Notes:

    We recommend providing a CMF (Colour/Material/Finishing) that defines the visual and tactile characteristics of a product, ensuring design consistency and manufacturing accuracy.

    Final result:

    • Fine-to-coarse grain depending on the selection
    • VDI12, VDI15, VDI18,VDI21, VDI 24, VDI27, VDI30, VDI33, VDI36, VDI39, VDI42, VDI45

Adhesives and Coatings

  • Passivation (3D render)

    Passivation

    A colorless coating that improves corrosion resistance for 200 and 300 series and precipitation hardened corrosion-resistant steels by removing free iron from the surface.

  • SLA Clear, quick clear

    Quick clear

    Clear coat evens out the surface of the part, which allows light to pass through with little distortion.

    Final result:

    • Enhanced transparency
  • Chem film, gold

    Chromate conversion

    Chromate conversion coatings, also known as chem-film, enhance corrosion resistance and conductivity properties and can be used as a base for paint.

    Notes:

    Type I chromate conversion caused the coating to appear gold or brown in color typically

    Available colors:

    • Gold
  • Blackening / Black oxide (3D render)

    Black oxide

    Black oxide is a type of conversion coating for ferrous materials, such as steel and stainless steel, which blackens the top layer of the material. It can be used to reduce reflection and glare, as well as provide some additional corrosion resistance without affecting part dimensions.

    Available colors:

    • Black
  • Black powder coating (3D render, aluminium)

    Powder coating

    Provides a continuous, protective color finish on parts using evenly applied, heat-cured paint. The finish is usually tougher and even compared to conventional painting. Metals like aluminium and steel can be efficiently coated with polymer powders.

    Available colors:

    • Black
  • MJF PA 12 black spray painting

    Spray painting

    Provides a continuous, protective color finish which is applied by spraying.

    Notes:

    Paint coating is just on the surface level, if it is scratched or subjected to wear and tear, the internal natural colour is visible.

    Available colors:

    • Black
    • Blue
    • Green
    • Red
    • Yellow

Anodising

  • Clear anodising type II (3D render, aluminium shown) Clear anodising type II (3D render, aluminium shown)
    Green anodising type II (3D render, aluminium shown) Green anodising type II (3D render, aluminium shown)
    Gold anodising type II (3D render, aluminium shown) Gold anodising type II (3D render, aluminium shown)
    Orange anodising type II (3D render, aluminium shown) Orange anodising type II (3D render, aluminium shown)
    Blue anodising type II (3D render, aluminium shown) Blue anodising type II (3D render, aluminium shown)

    Anodizing (type II)

    Type II anodize provides increased corrosion resistance and can be used as a base for paint and other finishes.

    Notes:
    • Involves using dyes to affect the part’s surface color
    • Anodized colors cannot be matched to specific Pantone or RAL colors
    • Type II coatings are susceptible to wear and may bleach or fade under prolonged direct sunlight

    Available colors:

    • Blue
    • Gold
    • Green
    • Natural
    • Orange
  • Black hardcoat anodising type III (3D render, aluminium shown) Black hardcoat anodising type III (3D render, aluminium shown)
    Grey hardcoat anodising type III (3D render, aluminium shown) Grey hardcoat anodising type III (3D render, aluminium shown)
    Clear hardcoat anodising type III (3D render, aluminium shown) Clear hardcoat anodising type III (3D render, aluminium shown)

    Hardcoat anodizing (type III)

    Type III hardcoat anodize produces a thicker layer of standard anodizing, making it more durable and wear-resistant. Can be used as a base for paint and other finishes.

    Notes:
    • Colors tend to come out slightly dark due to thickness
    • Anodized colors cannot be matched to specific Pantone or RAL colors

    Available colors:

    • Black
    • Grey
    • Natural

Metal & Precious Metal Plating

  • Electroless nickel plating (3D render)

    Electroless nickel plating

    Electroless nickel plating provides a uniform nickel coating, which offers protection from corrosion, oxidation, and wear on irregular surfaces.

    Final result:

    • Protection from corrosion, oxidation and wear on irregular surfaces
    • Brighter appearance
  • Gold plating (3D render)

    Gold plating

    Gold Plating provides good corrosion and tarnish resistance. Gold has low contact resistance, excellent conductivity, and solderability.

    Final result:

    • Gold-like appearance
    • Increased corrosion and tarnish resistance
  • Silver plating (3D render)

    Silver plating

    Electroplating silver provides good corrosion resistance but easily tarnishes. Silver offers high solderability and electrical conductivity.

    Final result:

    • Silver-like appearance
    • Increased corrosion-resistance
    • Easily tarnishes
  • Zinc plating (3D render)

    Zinc coating / Galvanising

    Zinc plating involves the electrodeposition of a thin coating of zinc metal onto the surface of another metal object, known as a substrate. The zinc coating creates a physical barrier that prevents rust from reaching the underlying metal surface.

    Final result:

    • Increased corrosion resistance

Heat Treatments

  • Annealing

    The annealing process involves the heating of a metal to or near the temperature at which recrystallisation begins without change in the stresses. After heating, the metal is cooled to room temperature in the oven or put in the sand.

    Final result:

    • Improved cold working capacity of the metal

  • Case-hardening (Carburising)

    A heat treatment process which includes hardening the surface of metal while allowing the metal underneath to remain soft. As the name implies, carburising is inducting carbon or nitrogen into low-carbon alloys at elevated temperatures so that the hardenability increases.

  • Tempering

    A heat treatment method that is mainly dedicated to reducing the amount of hardness of metals. It involves heating the metal to a temperature below the critical point. The temperature is adjusted depending on the amount of hardness that needs to be reduced and it varies depending on the metal type as well.

    Final result:

    • Reduced hardness
    • Increased elasticity and plasticity
    • Reduced yield and tensile strength

  • Through hardening

    Through hardening differs from case hardening where, instead of just the surface, the whole alloy is made to have relatively similar hardenability. This can be achieved by introducing carbon into the alloy matrix and quenching it repeatedly in brine or in water. Oil quenching can also be used.

    Final result:

    • Hardened surface layer that is resistant to wear, abrasion, and deformation

Choose From 40+ Finishing Options for Your Parts

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Knowledge & Community For Engineers & Product Designers

Post-Processing Resources

Surface Finishes for 3D Printing Injection Molding Surface Finishes: SPI and VDI Surface Finishes for CNC Machining Sheet Metal Finishes: Plating And Polishing Options Vapor Smoothing: An Effective Surface Finish Process in 3D Printing Anodizing Aluminium: An Effective Finishing Option Powder Coating vs. Anodizing for Aluminium Everything You Need to Know About Black Anodizing

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