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Soundproof Walls · Mass Loaded Vinyl

Mass Loaded Vinyl for Walls

MLV is a dense, flexible limp-mass barrier that blocks airborne noise through Mass Law — layered under drywall (or over hat channel in a decoupled build) to raise STC across the walls. We stock three variants sized for different assemblies and occupant sensitivities. All three seal with Vinyl Seam Tape (not foil) at every butt seam.

Mass Loaded Vinyl acoustic barrier rolls — 4' × 25' (100 sq ft) limp-mass rolls for wall and ceiling soundproofing.

Available MLV Variants

Companion component — Vinyl Seam Tape

1LB MLV, 2LB MLV, and EVA MLV all require Vinyl Seam Tape (never foil tape) to seal butt seams and preserve the barrier's acoustic continuity. Contact us for current Vinyl Seam Tape pricing and availability.