Every Schlegel seal is engineered to meet measurable performance criteria. Q-LON Fire Retardant gaskets are classified to EN 13501-1 Class E. Q-LON polyurethane foam delivers thermal conductivity of 0.04 W/m·K at 0°C, verified under EN 12667:2001. When you specify a Schlegel product, the published data reflects real, independently verified results.
Not only are we backed by 140 years of manufacturing refining sealing technology for the fenestration industry; we have also spent over a century refining our best-in-class customer service. Through trust, transparency and integrity, we go above and beyond to deliver quality and reliability to all customers.
Schlegel works directly with customers to design dedicated sealing solutions for specific applications. Our customers are guaranteed trusted products and engineered solutions when they need them, so fabricators, distributors and specifiers across Europe can depend on quality leaving our facilities in the UK, Spain, Germany and Belgium ,order after order.
Contact us do discuss every aspect of our sealing solutions for windows and doors.
Access the full Schlegel technical library including product data sheets for Q-LON, brush pile and extruded seals, downloadable brochures covering EN 12365 compliance, and installation guides for timber, aluminium and uPVC applications. All documents are available to download free of charge.