This process involves the extrusion of the polyurethane, using a pressure-dye-like apparatus, on the primed glass. The extruder may have variable size sections and is operated by a robotic arm. Extruded polyurethane can form a U-shaped profile with spacing blocks after wet drying.


  • Simplified design, classic encapsulation process of grinding edges.
  • Short-term process.
  • Low cost of extrusion equipment.
  • The U-shaped profile covers the remaining space between the windscreen and the vehicle.

PU Extrusion Section

Typical Design