29. Jan 2026
Rampf and Gealan partner on high-speed PU sealing for automotive
The automated process enables precise dispensing of the foam directly onto components, creating a reliable seal in a single production step.
German materials specialist Rampf Advanced Polymers and automotive plastics manufacturer Gealan Formteile have partnered to deliver a high-efficiency sealing solution for complex loudspeaker housings used in vehicles.
The collaboration centres on the use of Raku Pur 32-XGEA23, a polyurethane foam system developed by Rampf, which is applied using Formed-In-Place Foam Gasket (FIPFG) technology. The automated process enables precise dispensing of the foam directly onto components, creating a reliable seal in a single production step.
According to the companies, the formulation combines specific reactivity and viscosity characteristics that allow components to be rotated multiple times during processing without the foam sagging. This makes it possible to seal highly complex three-dimensional geometries in one pass, helping manufacturers maintain production speed without compromising seal integrity.
Gealan Formteile, which develops and produces complex plastic components for the automotive sector, said the system supports both performance and throughput requirements demanded by OEMs and Tier-1 suppliers.
“Our customers demand both speed and absolute reliability, and our materials and processing technologies are engineered to deliver exactly that,” said Christian Pflug, Head of R&D at Gealan Formteile. “By using Raku Pur 32-XGEA23 sealing foam from our long-standing partner Rampf Advanced Polymers, we ensure consistently high-performance sealing results.”
The project highlights the growing role of tailored polyurethane foam systems combined with advanced automation in meeting the automotive industry’s requirements for precision, durability and fast cycle times.
Rampf Advanced Polymers, based in Grafenberg, Germany, develops polyurethane, epoxy and silicone-based systems for sealing, casting and bonding applications across a range of industries. Gealan Formteile specialises in the manufacture of complex plastic parts for automotive applications.
Photo © Rampf
Rampf Advanced Polymers
Gealan Formteile