Natural Rubber Mat Bonded with Synthetic Rubber
AAB-NR-BSR is a vibration damping product comprising natural rubber and synthetic elastomeric compounds bound by mass-polymerized polyurethane. Sound transmission characteristics of structures are determined by essentially three parameters: mass, stiffness, and damping. AAB-NR-BSR rubber underlays increase the damping rate of heavy horizontal structures so that freely propagating structure-borne waves decay faster and impact sound insulation performance of these structures increase above the so called coincidence frequency.
Acrefine AAB-NR-BSR can either be directly used under screed applications or in between two plywood layers which support reinforced concrete floating floor slabs resting on rubber mounts. It is recommended to be used under floating floors of equipment rooms with high noise levels where airborne and impact noise insulation performance is to be increased.