Schlegel Q-LON

Schlegel’s Q-LON polyurethane foam seal is an ideal air, water, and sound insulation solution for pivot doors. Providing high performance with low compression force, this system offers long-term durability thanks to its one-piece structure applied to the door leaf and integrated polypropylene inner profile. It maintains its shape and performance even in extreme climatic conditions, exhibiting a stable sealing feature without stretching or shrinking. Thanks to their special polyurethane structure, Q-LON seals offer high flexibility and durability. They maintain their form despite up to 50% compression and do not experience performance loss even at low temperatures. Their soft structure ensures easy closing on pivot doors, they are long-lasting, and remain unaffected by paint, detergents, or UV rays. Thanks to their polyethylene outer surface, they can be used for years without deformation.

It has one of the best values on the market for thermal and sound insulation. With a thermal conductivity of 0.04 W/m•K, it provides 3–6 times better insulation and offers up to 4 dB of sound insulation. It ensures sealing even on deformed doors and provides high performance with low compression force. It is an ideal solution both aesthetically and technically for pivot doors.