Our coloration methods

Our coloration methods


Our workshop is able to obtain colours very close to the RAL and PANTONE references to ensure the manufacturing of prototypes and small series of plastic parts that are as close as possible to reality. We offer three different finishes to obtain the colour of the machined and moulded parts.

Three available methods


Plastic CNC-machined parts made of PPS reinforced in glass fiber without paint finish


First, the colour of the parts can be obtained without finishing by using the natural colour of the material. For example, the ABS material of CNC parts is naturally beige. In addition, in vacuum casting the reference 8260 from Heicast is available in white or black colour. However, the absence of a finish limits the available shades. To mimic a specific RAL or Pantone, it is advisable to apply a paint finish or a mass dyed colour.



Parts produced by vacuum silicone moulding with a wide range of RAL colours


Secondly, we can paint all 3D prototypes in vacuum casting and CNC parts made of ABS material. Other plastic machining materials are generally difficult to paint and a paint finish will not provide an optimal visual finish. We are also able to add a layer of paint to the surface of prototypes obtained from PU PC, allowing us to use the mechanical characteristics of transparent materials without being limited in terms of coloration.



Part made by molding prototype

Thirdly, a mass colour finish allows us to colour the surface of silicone vacuum casted parts as well as the thickness. In addition, mass colour parts do not have the disadvantage of the excess paint layer, which can influence the dimensions and critical zone tolerances. This finish is available only in silicone molding, since a dye is added to the liquid material which will be inserted into the vacuum silicone mould.




These processes are specific to 3D prototypes in vacuum moulding and plastic machining. Other coloration methods are also available for metal machining projects. These are powder paint finishes for metal surfaces, electroplating, chrome plating and anodising.

More information about our finishes in plastic and metal machining and vacuum silicone moulding is available here. Our company also offers several applications in CNC machining and vacuum mould casting.


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