3D Printing Finishing Services


Our 3D printing finishing services, including surface finishing, painting, and assembly, can make all the difference to the success of your prototype, model, or product.

3D Printed Parts & Prototype Finishes

We offer a wide range of in-house 3D printed parts finishing services, including painting, surface finishing, and assembly for prototypes and production components. Our investments in an industry-standard color-matching system and experienced finishing team allow us to deliver custom finishes quickly and accurately.

Clear tray manufactured using SLA technology with ClearVue material finish

These additive manufacturing finishing capabilities ensure your parts meet visual, functional, and performance requirements before moving into testing, presentation, or production.

Depending on your application’s requirements, we provide multiple finish levels for prototypes and production parts:

Level 0 Finish: Support removal only (Strip ’N’ Ship)

Level 1 Finish: Support removal and light sanding of support surfaces

Level 2 Finish: Level 1 finish plus light sanding and bead blasting

Level 3 Finish: Level 2 finish plus sanding for smooth 3D prints

Level 4 Finish: Level 3 finish plus exterior build lines removed and primer applied

Level 5 Finish: Level 4 finish plus paint (painted finish)

Mold Ready Finish: Level 4 finish with all build lines removed (interior and exterior) for urethane casting or metal casting processes

These finishing options support applications that require sanding 3D printed parts, smooth surfaces, or presentation-quality prototypes.

Clear Part Finishing Options

We also provide specialized finishing services for transparent materials such as SLA ClearVue:

Quick Clear Finish: Level 1 finish with a clear paint coat

Level 3 Clear Finish: Level 3 smooth finish with clear paint coat

Supreme Clear Finish: Level 5 finish without fillers or primer, followed by a buffed clear coat for a high-gloss, show-quality finish

At The Technology House (TTH), we support a wide range of additive manufacturing processes—including Carbon DLS, selective laser sintering (SLS), fused deposition modeling (FDM), and HP Multi Jet Fusion (MJF)—allowing us to deliver 3D printing finishing solutions that bring parts closer to production-ready quality.


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From design to prototype and production, our engineering team is ready to help bring your idea to life with advanced 3D printing finishing services and additive manufacturing technologies.

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Production Finishes

Plated Metallic Finishes

In addition to prototype finishing, we also provide a wide variety of additive manufacturing finishing options for production parts.

Metallic & Specialty Finishes

Depending on your project requirements, we offer a range of coatings and finishing treatments for plastic and additive manufacturing parts.

Plastic Finishing Options

  • Vacuum metallizing for chrome-like metallic finishes
  • Electroplating with nickel, chrome, copper, gold, and other metals
  • Custom color painting using our Sherwin-Williams color matching system
  • Anti-static nickel coatings
  • Soft-touch coatings to simulate over-molded grips
  • Vapor polishing or vapor smoothing for smoother surfaces
  • Dyeing
  • Tumbling
  • Bead blasting
  • 3D printed textures
  • Painted finishes, including textured, matte, and gloss coatings
  • Part decoration, including labeling, silk screening, and pad printing

These finishing methods allow engineers and product teams to achieve functional, aesthetic, and production-level finishes for 3D printed parts.

If you have a specific finish requirement or need help determining the best 3D printing finishing service for your project, our project management team can help recommend the right solution.

3D printed prototype with painted custom finish

What Our Partners Are Saying

I have partnered closely with TTH for over a year, and working with them has been a wonderful experience. Their entire team is always pleasant to work with, their project managers are incredibly knowledgeable, and their attention to quality and timeliness is best in class. I simply cannot recommend them highly enough for any project big or small.

- Jordan G., Additive Manufacturing Professional

Most of my 30 year career has been spent finding vendors that meet my Cost, Service, and Quality requirements. The number of suppliers that can meet those criteria for a sustainable period of time are few. TTH is one of those companies. The management team at TTH is always willing to work with us to improve efficiency and offer solutions that exceed our expectations. If you are looking for a partner, not just a supplier, the team at TTH will not disappoint.

- Tom C., NPI Materials Leader

Design Without Restriction

See how we partnered with Vitamix and Carbon to redefine what's possible. We took a legacy, six-piece, injection-molded part design and turned it into a new, one-piece, 3D-printed part.

We'd Love to Hear from You

Our experts have a proven history of providing innovative solutions at every stage of product development—from product design through production.

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Frequently Asked Questions

Q: What 3D printing finishing services does The Technology House offer?
A: The Technology House (TTH) provides a range of 3D printing finishing services, including sanding, smoothing, surface polishing, and other post‑processing techniques. These additive manufacturing finishing services help improve surface quality, remove layer lines, and make printed parts ready for presentation or end‑use.

Q: Why is finishing important for 3D printed parts?
A: Finishing 3D printed parts enhances appearance, improves fit and functionality, and prepares parts for painting or assembly. Without proper finishing, surface texture from the printing process may affect performance or aesthetics — especially for prototypes or customer‑facing components.

Q: What techniques are used to smooth 3D prints and refine surfaces?
A: TTH uses expert sanding, smoothing, and other custom finishing methods to refine the surfaces of 3D printed parts. These techniques can reduce visible print lines, create consistent surface texture, and prepare parts for secondary processes like coating or plating.

Q: Can custom finishes help improve the function of additive manufacturing parts?
A: Yes. Custom finishing can improve part performance by removing rough edges, enhancing tolerances, and creating smoother surfaces. This is especially useful for parts that will be assembled, fit‑checked, or used in functional testing as part of the product development cycle.


Get Your Product to Market

Our integrated approach to design, prototyping, and production allows you to bring your concept to market faster and more cost-effectively than virtually anyone else.

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