The Isopress located at Birmensdorf, Zürich was one of the first thermosetting polymer processors in Switzerland. History Isopress was founded 1940 and until 2015 (to the end of Isopress) it was located at Stallikonerstrasse 69, in 8903 Birmensdorf, in a former spinning building of the textile industry. Until its end, Isopress produced a wide range of thermoplastic and thermoset components. In particular, components for railway technology (switch controllers, "chimney" lightning arrestors for the SBB-CFF-FFS Re 460 (for the company Société Anonyme of the Atelier de Sécheron), loudspeaker covers for S-Bahn wagons) as well as lift buttons, filters for medical technology, electrical components for the Schurter Holding (e.g. EMF switches) and knurled screws etc. The Isopress trained its own apprentices as plastic technologists, it also enabled plastic technologists apprentices of Lego Produktion AG Switzerland to study the second subject of thermosetting processing and to complete the occupational test in this field at the Isopress. In 2001, Isopress entered into a collaboration with Lanker AG in Oberriet. In 2015, Isopress was dissolved and integrated into Lanker AG. Processing The products were produced in thermoset presses, with and without inserts, in injection molding (compression molding with a built-in injection plunger), in thermoset injection molding, and in thermoplastic injection moulding. For this purpose, Sheet Moulding Compounds were pressed in the thermosetting area as well as a kneading-type thermosetting resin with long glass fibres. Thermoplastics: Acrylonitrile-Butadiene-Styrene, Polyoxymethylene, Polystyrol, Polycarbonate, Polyethylene, Polypropylene (also with glass fibers). In the thermosetting range: phenol-formaldehyde resin, melamine-formaldehyde resin, urea-formaldehyde resin, unsaturated polyester resins, phenolic resins, epoxy resin.
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