Prototyping

Vacuum forming is a moulding technique used to make small batches of plastic parts that must have a perfect surface. To create the silicon moulds, stereolithography models or milled parts are used as the master form. Using a vacuum chamber, a variety of 2-component casting resins with a wide range of material properties can be cast, including hard-solid, soft-rubbery, transparent, crystal clear and RAL colours.

Copies are made using silicon moulds. They have the advantage that complex shapes with undercuts can be released easily and cast without air inclusions. The choice of PU casting material is made in accordance with the material specifications for subsequent series production. The geometry of the part and the PU resin used for casting affect the durability of the moulds. Usually up to 25 parts can be cast from one silicon mould.