Spray Painting
In spray painting, a coating optimized for polyamide is applied. The coating layer is typically 0.1 – 0.3 mm. A wide range of colors and also special effects (e.g. “Glow in the Dark”) can be achieved with this finishing process.

Spray Painting at 3Faktur
The spray painting is done externally by an industrial coating service provider. As a result, extended production times of 2 – 3 weeks are to be expected. We use Cerakote® as preferred coating, as it is optimized for additive manufactured PA and TPU. Other paint systems (e.g. to reproduce specific RAL colors) can also be used on request.
How it works
In spray painting, liquid paint is sprayed onto the surface of the component. Before painting, the surface of the plastic is thoroughly cleaned to ensure high paint adhesion. In the process used at 3Faktur, no adhesion primer is generally required, as the paints are optimized for polyamide or TPU.
The applied varnish forms a wet layer on the surface of the plastic, which gradually levels itself and dries to form a smooth and uniform surface. The drying time depends on the type of varnish and the thickness of the applied layer.
Applications
Spray painting is recommended for visible parts only. Compared to dyeing, significantly more colors and also even better color homogeneity and replicability can be achieved with coating. However, due to the high manual effort involved, the costs for this post-processing are significantly higher.
FAQ Spray Painting
What is the coating thickness?
The coating is applied in a manual process, so the layer thicknesses vary. In the case of Cerakote coatings, no primer is necessary, insofar the layer thicknesses are in the order of a tenth of a millimeter, in the case of coating systems with primer, the layer is thicker (depending to the number of layers applied).
Are the components sanded?
Not in the standard process, this can be done on request. In the standard process, the components are chemically smoothed before coating.
Are RAL colors also possible?
Yes this is possible with other paint systems. Please specify the desired RAL tone in your request.