The SGM Prime Dual 4mm is a premium, two-layer car sound deadener engineered for superior performance. It features enhanced, lightweight butyl rubber compounds separated by a 100-micron aluminum foil core, with an outer foil layer of identical thickness. This innovative design achieves one of the highest CMP (Composite Material Performance) ratings in the Prime series, despite its substantial 4 mm profile, by maintaining an optimal strength-to-weight ratio.

The synergy of the dual mastics ensures excellent vibration damping, strong metal adhesion, and reliable corrosion protection. With a stable operating range of -40°C to +120°C, it performs consistently in diverse climates.

Two-layer car sound deadener SGM Prime Dual 4mm is ideally suited for targeted application on wheel arches and in the trunk, where it delivers maximum damping impact with minimal added weight. It is also effective on the floor and firewall (engine bulkhead), creating a comprehensive vibration barrier in critical, high-stress zones.

For optimal results, the material should be pre-heated and meticulously applied with a roller. This step is essential due to the increased rigidity of its double-foil construction, which is key to its exceptional damping capability.