Soundsulate 2 lb Mass Loaded Vinyl MLV 4 ft x 130 ft - High STC Sound

In this review of Soundsulate 2 lb Mass Loaded Vinyl, the bottom line is simple: this roll is for anyone who needs a reliable, space-saving airborne sound barrier. The reviewer found it most useful where blocking voices, music, street noise, or engine sound matters, and the product shines because of its proven STC rating of 31 and flexible, thin profile. For studio owners, home theater builders, and vehicle conversion projects that require a continuous barrier without adding much bulk, this MLV delivers predictable results when installed with no gaps.

Key Features

• STC 31 rating: Provides measured reduction of airborne noises like speech and music, making rooms noticeably quieter when fully covered.
• Two pounds per square foot: The dense material blocks sound without becoming excessively thick, useful where wall or floor depth is limited.
• Large continuous roll: A single 4 ft by 130 ft roll (520 sf) eliminates seams across many installations, reducing potential weak points in coverage.
• Flexible and durable: The MLV is easy to cut and shape around studs, joists, ducts, and pipes for custom installations.
• Non toxic and stable: Safe for indoor use, it will not off-gas or decompose and also acts as an air and moisture barrier.

Who It's For

This material is aimed at homeowners, studio builders, and vehicle or boat owners who need to block airborne sound without rebuilding walls. It works well in home theaters, recording rooms, around HVAC, and as an acoustic wrap for machinery where a thin, heavy barrier is required.

It is not intended for stopping structure-borne impact noise such as footsteps from an above floor, so contractors focused on vibration isolation should look for additional underlayment or decoupling solutions. Also, because the roll ships as a one-piece 1,040 lb pallet, projects that require smaller, ready-to-handle sheets may prefer pre-cut panels.

Pros & Cons

Pros

• High material density delivers effective airborne noise reduction for voices and equipment noise.
• Thin profile (roughly 0.25 in) preserves room dimensions while adding substantial sound blocking mass.
• Large continuous roll reduces seams and simplifies covering long runs or large surfaces.

Cons

• Does not stop impact or structural vibration noise on its own; additional solutions are necessary for footsteps or impact sounds.
• One-roll shipping weight is heavy (about 1,040 lbs) and requires pallet delivery with signature, which adds handling complexity.

Specifications

Brand	Soundsulate
Material type	Mass Loaded Vinyl (MLV)
Weight	2 lb per sq ft
Dimensions	4 ft x 130 ft (520 sq ft)
Thickness	Approximately 0.25 in
STC rating	31 (blocks airborne noise)
Shipping	One continuous roll on pallet, signature required

Our Verdict

Soundsulate 2 lb MLV is a practical, cost-effective choice for anyone needing a high-density airborne sound barrier without sacrificing space. Installers who fully cover surfaces will see clear reductions in speech, music, and engine noise, and the durability and non toxic composition add long-term value. Those needing impact noise control should pair it with isolation materials, but for airborne sound control this roll is good value.

Frequently Asked Questions

Can this MLV stop footsteps or impact noise?
It is designed to block airborne sound and is not intended to stop impact or vibration noise; pair it with underlayment or decoupling systems for footsteps.

How is the product shipped and handled?
The 520 sf roll ships as one continuous roll weighing about 1,040 lbs on a pallet by freight carrier and requires a signature on delivery.

Is the material safe indoors?
Yes, the vinyl is non toxic, will not off-gas, and also acts as an air and moisture barrier suitable for indoor use.