The Selective Laser Sintering Process of
 thermoplastics (SLS) enables the manufacturing of
 components with complex shape in a short time period
 without the manufacturing of a specific mold. However, this
 manufacturing process is limited by the restricted range of
 materials. In contrast to this primary shaping process,
 vacuum casting allows a quick, inexpensive and highly
 accurate process but it is limited to the reproduction of
 already existing models. In a novel rapid tooling method,
 these two processes are combined. Thus, silicone parts can
 be manufactured using SLS molds. The manufacturing of
 elastomeric parts in the vacuum casting process using SLS
 molds is being investigated. Therefore, the adhesion of
 silicone to the SLS mold, as well as the resulting mechanical
 properties of the elastomeric parts are investigated. The combination of the SLS process and the vacuum casting process allows the rapid manufacturing of complex elastomeric parts with sufficient mechanical
 properties. The surface roughness of the SLS mold influences the adhesion of the casting material to the mold, as well as the mechanical properties of the manufactured elastomeric components. The synergy of using selective laser sintered molds with the vacuum casting technique displays a
 novel rapid manufacturing method.