Quiet the cabin. Block road, engine and exhaust noise.
AcoustiLayer® mass loaded vinyl adds a dense, limp barrier under floors, inside doors and across firewalls - the single most effective way to cut airborne noise in a vehicle.
Why mass loaded vinyl in vehicles
Sound deadening tiles stop panels from ringing, but they don't block the airborne noise pushing through floors and bulkheads. Mass loaded vinyl is a barrier - it adds limp mass that reflects and absorbs sound energy before it reaches the cabin. Pair the two and you address both vibration and transmission.
Because AcoustiLayer® is thin and flexible, it conforms to floor pans, transmission tunnels and door skins without fighting the contours, and its water-resistant vinyl holds up to the damp, warm environment of a vehicle.
Where to apply it
- Floor pan - the biggest single source of road and tyre noise; lay MLV over the deadener, under carpet.
- Firewall - blocks engine and intake noise entering from the bay.
- Doors - seal the inner skin and add mass to the trim card.
- Boot & wheel arches - quiet exhaust drone and tyre roar at the rear.
- Roof & bulkheads - reduce rain noise and resonance in vans and campers.
Build-up & pairing
For best results, build in layers: a constrained-layer damper on the bare metal first, then AcoustiLayer® MLV as the barrier, optionally with a closed-cell foam decoupler between metal and MLV so the mass floats. Seal every seam - a gap in the barrier leaks noise.
Mass works by area coverage and continuity. Overlap or tape seams and cut neat openings around fixings rather than leaving gaps.
Which thickness to choose
Use 2 mm for doors, headliners and weight-sensitive builds, 3 mm for floors and firewalls as the all-round choice, and 4 mm where maximum attenuation matters more than weight - commercial vehicles, campers and audio builds. All grades are the same 2000 kg/m³ AcoustiLayer® vinyl.