RTM process (resin transfer molding)


In this process, the reinforcing material is first placed in the mold. In a further step, the mold is closed with a counter mold. Liquid resin is then injected into the closed mold under pressure.

Products made by RTM process have very high surface quality on both sides. The components have a homogeneous, smooth high-density structure and the best possible mechanical properties. The surface can be further improved by applying a gelcoat into the mold.

ACCENTFORM manufactures special products made of glass-fiber reinforced plastic (GRP) for industrial customers and wholesale customers in the automotive sector: from spare parts for car bodies to complex body tuning parts or trim for commercial vehicles to complete body series.

The RTM process offers the advantage of a finely structured breakdown of the work content thanks to its production structure. This makes it possible to train employees quickly and safely in the individual production steps. This ensures a reliable production process and high flexibility in the output quantity.

After the trimming necessary for the process – which at ACCENTFORM is carried out by a robot – reinforcing and adaptation parts are bonded to the body parts on the inside. To ensure a permanent and secure adhesive bond, the KTL-coated metal parts bonded by means of a 2K MMA adhesive.

The GRP surfaces up to a size of  2,0 x 3.5m can be produced in quantities of over 250 units per year using the conventional RTM process. The photo gallery and our video provide a good overview of the individual production steps from cutting the glass fiber mat, through RTM injection and assembly of the components, to delivery of the GRP cladding.

Manufacturing in the RTM process in pictures:

Video RTM:


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Serial parts – references:

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