Prototyping since 1997


Mechanically usable models with attributes close to the finished serial part can be manufactured very quickly with the vacuum casting process. The main condition for vacuum casting is the availabilit of a master model. After the surface finish, the model will be embedded in Silicon and removed after hardening of the silicon. The silicon mould translates the model 1:1 with a 1/10 mm precision. Under a vacuum, the silicon mould is now filled with liquid resin with the result of the finished cast.

Due to mechanical wear and tear of the mould, an average of 15 to 20 casts can be produced from one mould.

As these casts represent near perfect copies of the prototypes, they can be used to test technical parametres
of the future marketed product relatively accurate.


  • fast (within 5 to 8 working days)
  • Small series of one to several hundred pieces possible
  • Usage of newest casting products, covering a large area of commercially available plastic, delivering functional parts with very similar attributes to the future injection cast large series parts. Material can be transparent, glass fibre strengthened, dyed or soft, allowing the production of series accurate models, particularly in regards to the surface after process.


  • 5 casting machines in various sizes


  • all common PU materials
FASTPART kunststofftechnik GmbH - Wolfener Straße 37 - 12681 Berlin - Germany - Tel.: +49 (0) 30 93 66 63-0 - Mail: