Color dyeing
Shotpeening
Vapor polishing
Food-Coatings
Inserts and threading
More tech?
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Do you have any burning questions?
It may be true that 3D printing hasn’t been used as long for production as turning, milling or injection molding. As an engineer, maybe you don’t really have that ‘feel’ with printed parts yet. And you are not confident about how 3D printed products hold up in your machines. We fully understand that! And we will help ease your mind.
So: do you have a 3D printed application in mind? Use a 3D printed part and taste the pudding? See if it will hold up? Then contact Neil for a free sample. On the house!
What customers say
“Maatwerk, juist in het hoge segment. 3D-printen geeft de ontwerpvrijheid die je nodig hebt voor complexe, functionele onderdelen.”
Machine Building
Read the story →“Het onmogelijke mogelijk maken. Complexe geometrieën die met traditionele technieken niet haalbaar zijn, printen in serie.”
Engineering
Read the story →Frequently asked questions about post-processing
What post-processing options are available for SLS parts?
Vapor polishing (smooth, pore-closing surface), dyeing (colour through the entire part), metal coating (nickel, copper, chrome), tumbling, and dimensional quality control. requires no dyeing as it is structurally black.
Does post-processing affect the mechanical properties of the part?
Vapor polishing closes surface porosity, which can slightly increase water tightness and chemical resistance. Dyeing penetrates the material without affecting strength. Metal coatings add conductivity and surface hardness. Our engineering team advises on the impact per application.
How long does post-processing take?
Standard lead time for post-processing is 2 to 5 additional business days on top of production. For vapor polishing or dyeing of large batches we align planning with your delivery schedule.
Can you dye parts to a specific RAL colour?
Yes. We dye SLS parts through and through to the desired colour. This means scratches or wear do not reveal a different colour underneath. Colour matching to RAL or Pantone references is possible.
Is vapor polishing the same as acetone smoothing?
No. Acetone smoothing only works on ABS (FDM). Vapor polishing for SLS uses a proprietary chemical process that smooths the surface of PA12, PA11 parts without dissolving the material. The result is a glossy, pore-closed surface with consistent wall thickness.
Which post-processing is best for food-safe parts?
PA12 Blue MD is food-grade certified (EC 1935/2004, FDA) and can be used directly without post-processing. For standard PA12, vapor polishing closes surface pores, making the part easier to clean for hygienic applications.
Need post-processing advice?
Upload your file for a quote including post-processing, or discuss the best finishing option with an engineer.
Why manufacturers choose Parts on Demand
Industrial SLS 3D printing at production scale. 11 machines. 6 engineering-grade materials. One dedicated team.
Production capacity, not prototyping
Our fleet of 3x EOS P500 dual-laser and 7x EOS P396 systems runs 24/7 for series production. That means consistent mechanical properties from batch 1 to batch 1,000. When you need 5 parts or 50,000, the process and quality are identical.
Co-engineering included
Every project is reviewed by our in-house application engineering team before production. We optimize wall thickness, orientation, and geometry for SLS (DfAM), catching issues that would cause rejects. Competitors send your file straight to a printer. We make sure it works first.
6 materials, each with a purpose
PA12 for general-purpose parts (48 MPa tensile strength). PA 950 HD for structural black parts at reduced cost (44 MPa, 80% powder reuse). Carbon LW for metal replacement at 40% less weight. PA802CF for maximum stiffness. PA11 for chemical resistance. TPU for flexible, rubber-like applications.
Based in Utrecht, shipping across Europe
Standard delivery from 5 working days. Express within 48 hours. Upload your STEP, STL, or 3MF file and receive a quote within 24 hours. No tooling costs, no minimum order quantities, no setup fees. Scale from prototype to series whenever you are ready.