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Vacuum Casting begins by producing a master model, typically using Stereolithography or Laser Sintering, with a high-quality surface finish. Then a silicone mold is produced by casting silicone around the master copy, partially under vacuum to avoid air bubbles. After curing, the silicone mold is cut according to pre-defined parting planes and the master is removed, leaving a cavity to make copies.

Silicone molding results in high-quality parts comparable to injection-molded components. This makes vacuum casted models especially suitable for fit and function testing, marketing purposes or a series of final parts in limited quantities. Vacuum Casting also lends itself well to a variety of finishing degrees, and we can match the finish you need for your parts.

  • Type of casting Technology: Vacuum Casting.

  • Materials: Vacuum Casting materials can simulate the following production materials and properties like;

  • i) Rubber – high flexibility

  • ii) ABS – high rigidity and strength

  • iii) Polypropylene and HDPR – high elasticity

  • iv) Poly-amide and glass filled nylon – high rigidity

  • v) Poly-carbonate and PMMA – shock resistance, translucence, high temperature resistance

  • vi) Filled ABS – fire resistance and retardant   


  • Dimensional Accuracy: ± 0.3% (with lower limit on ± 0.3 mm on dimensions smaller than 100 mm).

  • Minimum wall thickness: To ensure that the mold is filled properly, a wall thickness of at least 0.75 mm is necessary. For best results, we recommend a wall thickness of at least 1.5 mm.

  • Surface Structure: High-quality surface finish comparable to injection molding.

  • Common Applications: Functional parts; Complex ducting ; Low run part production.

  • Typical quantities: Up to 20 copies per mold (depending on the mold’s complexity and the casting materials).

  • Strengths: Functional parts, good mechanical properties; Complex geometries.

  • Ideal applications for Vacuum Casting: Pre-launch product testing, Small series of housings, Concept models and Complex prototypes.

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Vacuum Casting (VC)

Are you looking for the complete 3D printing rapid prototyping services? Forcyst is your one stop solution. Our experts will help you out with the different prototyping from SLA, SLM to Drop on demand & SLS as per your requirement. 

Forcyst, as India's leading design engineering and rapid prototyping company based in Mumbai offers complete product design & development solutions from concept design & research to 3D printing and manufacturing to the multiple sectors including medical, automotive, oil & gas and more.

Contact us now or email us at to get in touch with us.

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