VB-TSM is the perfect product for severe noise control problems. It is especially effective for RV and marine engine compartments and generator housings. VB-TSM is a unique, high performance composite material incorporating two layers of acoustical foam, a loaded vinyl barrier and an aluminized mylar thermally reflective skin. A ¼” foam isolation layer decouples the barrier while the 1” thick acoustical foam layer absorbs airborne sound. The aluminized mylar surface skin provides thermal protection for use in the harshest environments.