Mass-loaded vinyl
Block the Noise.
Sound Transmission Ratings up to 32 STC.
Flexible, thin, and highly effective, MLV blends seamlessly into architectural and industrial environments while delivering exceptional noise isolation.
Acoustic Performance in a Workable Form
Mass-Loaded Vinyl ("MLV") is a dense, yet flexible sound barrier material designed to block noise and dampen the transmission of vibration in an easily installed configuration.
MLV's engineered composition delivers impressive Sound Transmission Class (STC) ratings, making it ideal for new construction, retrofits, constrained spaces, or as part of multi-layer assemblies.
Unlike rigid barriers, MLV conforms to irregular surfaces, allowing for seamless integration in walls, ceilings, machinery enclosures, and partitions.
MLV's engineered composition delivers impressive Sound Transmission Class (STC) ratings, making it ideal for new construction, retrofits, constrained spaces, or as part of multi-layer assemblies.
Unlike rigid barriers, MLV conforms to irregular surfaces, allowing for seamless integration in walls, ceilings, machinery enclosures, and partitions.
This product is perfect for:
- Walls, Ceilings & Floors in Renovation or Retrofit Projects
- Control Rooms, Studios & Office Partitions
- Piping, HVAC, and Mechanical Ductwork
- Automotive, Marine & Mobile Applications
- Mobile Sound Barriers for Machinery & Generator Enclosures
Types of MLV
Mass-loaded vinyl
PROSPEC® Barrier -
Reinforced MLV
For demanding environments where strength, durability, and modular installation are critical.
Performance & Design Highlights:
- Features an interior mesh-like reinforcement for added tensile strength, tear resistance, and durability.
- Designed with grommet supports, enabling hanging as a curtain or sliding barrier. Perfect for modular and temporary noise enclosures.
- Common applications include high-noise equipment, integration with walls in severe environments to form acoustic partitions, and use in demanding indoor environments where flexibility and durability are essential.
Mass-loaded vinyl
PROSPEC® Barrier -
Non-Reinforced MLV
For applications where maximum flexibility and smooth, uninterrupted surfaces are required.
Performance & Design Highlights:
- A flexible, pliable vinyl sheeting ideal for direct attachment to surfaces where reinforcement for hanging is not required.
- Best used in situations where MLV is wrapped within wall assemblies, under floors, or over ceilings to enhance sound-blocking with minimal bulk.
- Common applications include built-in retrofits for increasing STC in walls, ceilings, or floors, as well as concealed installations where reinforcement or exterior wear resistance is not necessary.
Performance Specifications
Download the full spec sheet below.
High Density, High Performance
1 lb/ft² (¼″) thickness delivers STC ~26; 2 lb/ft² achieves STC ~32
Boosts Whole‑Wall Performance
A single layer can boost STC by 5–10 points when integrated with a standard wall assembly
Non‑Resonant, Flexible Design
Its mineral-filled PVC (or EVA) structure disrupts sound transmission, especially in mid to high frequencies
Fire and Moisture‑Resistant
Many MLV products meet Class A fire ratings and offer inherent water resistance, ideal for humid or code‑driven environments
Class‑Leading Durability
EVA-based variants outperform PVC in longevity, resisting brittle breakdown
Space‑Efficient Sound Control
Delivers excellent acoustic performance without the bulk. Perfect for retrofits, automotive cabins, studded walls, and tight plenum spaces
Applications at a Glance
Equipment Enclosures & Machinery Curtains
Reduce noise in manufacturing cells, pump rooms, and generator bays.
Wall Soundproofing Upgrades
Improve the acoustic environment in offices, classrooms, and healthcare spaces without structural changes.
Ceiling & Plenum Barriers
Stop noise transfer between floors and through open ceiling grids.
Floor Underlayment Soundproofing
Minimize footfall and impact noise in multi-story buildings.
Temporary or Modular Barriers
Deploy fast, remove easily, and reconfigure for changing layouts.
Doors & Windows Sound Shields
Curtail airborne infiltration by installing MLV overlays over doors and window frames.
Why Choose Memtech Acoustics
Certified and Licensed Professionals
Every project is guided by acoustical engineering expertise, not guesswork.
National Standards Alignment
Our products follow IBC, ASTM E90 / ASTM E413 / ASTM C423, NFPA 80 & NFPA 285, and AASHTO Design Guide Specifications.
Turnkey, Full-Service Delivery
One partner for assessment, engineering, sourcing, and installation* from concept to compliance.
High Responsiveness, Proven Reliability
Fast mobilization, accurate timelines, and dependable project execution.
Trusted Local Partner, On-Demand Support
Michigan-based with regional reach and national shipping capabilities.
*Shipping available across the continental USA; installations are offered in select regions.
Documentation & Resources
CAD drawings included with custom orders
LEED documentation available upon request
Downloadable installation instructions and specifications
Let's Get Started. Contact Us.
Talk to our experts. We’ll assess your needs and recommend a solution that works for your project.
