Born in 1885 in Rochester USA, with over a century of experience, the Schlegel brand stands for high quality sealings.

Besides working with customers to design dedicated solutions, Schlegel continues to improve existing processes and products, as well as test new compounds to achieve quality sealings of the very highest standard for every type of window and door.



Our best-in-class polyurethane foam seals

Q-LON is Schlegel’s high performance gasket. It is made from a special polyurethane foam core that allows high durability and superior recovery performance. The outside film is a weather resistant embossed polyethylene liner, available in a wide range of colours. Q-LON is available for timber, aluminium and uPVC windows and doors.

Q-LON features

Made with a unique combination of materials and with technical performance unparalleled by any other material used in seals, Schlegel Q-Lon offers the highest standard of sealing function – even under extreme conditions.

Profile materials

Schlegel offers a wide range of seals for every application material: timber, aluminium, uPVC.



A vast range of gaskets for timber windows and doors.


A vast range of gaskets for aluminium windows and doors.



A vast range of gaskets for PVC windows and doors.

Tyman International is a division of the Tyman group (TYMN: LSE), an international supplier of window components and access solutions. Tyman International products are sold in more than 100 territories worldwide under the Schlegel, Giesse, Reguitti and Jatec brands.