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RIM / RTM / RTM light

RIM and RTM (Resin Injection Molding / Resin Transfer Molding) are used to produce large-area, glass-fibre reinforced polyester parts (mostly in sandwich construction). Double molds are necessary here, which are usually made of GRP. Injection and infusion processes are also very feasible with silicone bags or film.


With the help of this technique, design and manufacturing problems can be predicted and corrected at an early stage of development, even before the actual injection molding process begins. This shortens the development process, avoids additional costs for mold changes and shortens the time to market.

Application examples

  • Skirts and roofs - rail vehicles

  • Fronts - rail vehicles

  • Floor elements incl. heating

  • X-ray couches - medical technology

  • Shuttering parts - medical technology

  • Carbon parts - medical technology

  • Wind turbine - apparatus engineering

  • Air ducting - electrical industry


  • ...and much more

  • Vacuum infusion at aXpel composites AG (link to video)




  • Large parts with smooth surface on both sides

  • Good weather resistance 

  • High rigidity and load-bearing functions 

  • High process reproducibility

  • Relatively short cycle times

  • Applicable also for large series

Further procedures

  • RIM / RTM / RTM light

  • Hand laminate

  • Wet molding

  • PUR - low pressure casting

  • Carbon fibres / Carbon

Form für Dachelement DURO

Form für Dachelement DURO

Dächer und Schürzen Lok 2000

Dächer und Schürzen Lok 2000

Komandoaufbau DURO

Komandoaufbau DURO

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