• About Us
• SONOpan
• SONOpanX
• Technical Documentation
• Case Studies
• Environmental Impact

Matériaux Spécialisés Louiseville Inc. (MSL), the manufacturer of SONOpan, is recognized as a leader in sustainable soundproofing and thermal insulation solutions for architectural and construction professionals. Our Louiseville-based mill has focused on developing innovative, eco-friendly fiberboard panels made from natural materials that are dimensionally stable, lightweight, and simple to install, meeting the design and performance demands of modern architecture.

With a commitment to environmental stewardship, MSL utilizes an advanced, automated manufacturing system that fully recycles water in a closed-loop process, achieving zero effluent and minimizing environmental impact. Our ISO 9001 certification reflects our dedication to quality assurance and operational excellence throughout all phases of production.

MSL‘s mission is a dedication to developing high-performance, sustainable solutions that improve acoustic and thermal comfort while supporting the well-being of building occupants.