Closed-cell foam with MLV (polymer) SGM Classic Silshot 7mm is a classic multi-layer noise barrier from the SGM Classic line. It combines three functional layers into a single high-performance material:

• Face layer — Mass Loaded Vinyl (MLV) (polymer core) for optimal sound blocking across a broad frequency range.

• Inner layer — a resilient closed-cell polyethylene foam layer for thermal insulation and additional sound absorption.

• Lower and mounting layer — a pressure-sensitive adhesive backing with siliconized release paper, which facilitates installation and creates a constrained layer damping (CLD) effect to dampen vibrations.

This composite noise barrier material provides high-performance sound suppression across a broad frequency spectrum, all while maintaining a lightweight profile. Its moisture-resistant construction and temperature stability ensure reliable performance in diverse climates. It is specifically engineered for applications where minimizing weight is critical, without compromising acoustic comfort.