Vacuum Casting & Silicon Molding
Vacuum casting is used for materials that cannot be cut from or carved out of an original block of material. After making an initial pattern, a silicone based mold is made based on the pattern. This allows the desired material to be casted (poured into pattern cavity and hardened). This method allows for the prototyping of clear plastics and rubber parts. Normally, a vacuum casted mold is good for approximately 10-15 pieces.
Vacuum Casting and silicone molds are perfect for short run production. Vacuum castings produce prototypes that are precise replicas of the mold that are also dimensionally and texturally accurate. The process starts by placing a two piece silicone mold in a vacuum chamber. The raw material is poured into the mold. The vacuum process draws the liquid into the mold to create the shape. The casting is then cured in an oven, the mold is removed, and the casting is complete!
Vacuum Casting & Silicone Molding can create prototypes that are very detailed without having to create multiple parts. Quality of prototype is very similar to final product. Prototypes are excellent marketing visuals and can have functional components. Various colors can be used.