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Description
SilentCloud® ProMass 50
Non-Adhesive Acoustic Membrane
High-Density Soundproofing Barrier for Walls, Ceilings & Floors (5 kg/m²)
SilentCloud® ProMass 50 is a professional-grade, non-adhesive acoustic membrane engineered to add mass, damp vibration, and significantly reduce airborne and impact noise when used as part of a correctly designed soundproofing system.
Developed for installers, contractors, and serious DIY soundproofing projects, ProMass 50 delivers predictable, high-density visco-elastic performance with a focus on system compatibility, installation control, and long-term stability.
This is a core system component, designed exclusively for use within professional soundproofing build-ups where performance, compliance, and durability matter.
Key Benefits
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High-mass performance — 5 kg/m² density for effective sound blocking
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Non-adhesive format — ideal for decoupled systems and mechanical fixing
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Ultra-thin profile — adds mass without sacrificing internal space
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Excellent vibration damping — controls resonance in lightweight structures
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Fire rated (Euroclass B-s2,d0) — suitable for residential and commercial use
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Flexible and installer-friendly — wraps around studs, corners, and services
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Moisture, rot & mould resistant — long-term dimensional stability
Where ProMass 50 Is Used
SilentCloud® ProMass 50 is specified where soundproofing performance must be engineered, not guessed.
Construction Applications
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Stud and partition walls
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Ceilings and suspended ceilings
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Timber and metal frame systems
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Between plasterboard layers
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Under floating floors and screeds (system-dependent)
Industrial & Specialist Applications
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Damping metal panels and decks
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Plant rooms and machinery enclosures
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Drainpipes and ductwork (with absorbent layers)
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Reducing rain noise on metal roofs
Technical Specifications
| Specification | Detail |
|---|---|
| Product Type | Non-Adhesive Acoustic Membrane |
| Density | 5 kg per m² |
| Thickness | Approx. 2.5 mm |
| Roll Size | 1.22 m × 6.0 m |
| Coverage | 7.32 m² per roll |
| Weight per Roll | ≈ 36 kg |
| Material | Polymer-based, asphalt-free visco-elastic membrane |
| Fire Rating | Euroclass B-s2,d0 |
| Water Absorption | None |
| Flexibility | High |
| Installation | Mechanical fixing or sandwich construction |
How SilentCloud® ProMass 50 Works
Sound travels easily through lightweight structures. ProMass 50 improves acoustic performance by:
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Adding mass to reduce airborne sound transmission
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Damping vibration to control resonance and structure-borne noise
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Working with absorbent layers (mineral wool, acoustic slabs) to form an effective mass-spring-mass system
Professional soundproofing relies on system design, not single-layer solutions.
Recommended System Use (Important)
For best results, SilentCloud® ProMass 50 should be used as part of a complete soundproofing build-up, typically:
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Plasterboard
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SilentCloud® ProMass 50
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Acoustic mineral wool
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Plasterboard or resilient system
When installed correctly, this delivers substantially higher performance than membrane-only approaches.
Installation Notes
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Cut cleanly using a sharp utility knife
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Fix using mechanical fixings, battens, or sandwich between boards
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Overlap joints and seal where required
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Always avoid rigid mechanical bridges
Professional installation is recommended for regulated or commercial environments.
⭐⭐⭐⭐⭐ Trusted by Installers & Professionals
Rated Excellent by Trade & Professional Customers
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“Consistent, professional-grade membrane.”
Uniform density, clean handling, and integrates perfectly into proper acoustic systems. Reliable results across multiple installs.
— Commercial Installer, Manchester
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“Clear specifications and predictable outcomes.”
No exaggerated claims — just a membrane that performs correctly when used in a proper build-up.
— Acoustic Consultant, London
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“Non-adhesive gives far better control on site.”
Stable, easy to fix, and no long-term creep issues. Ideal for serious installations.
— Drylining Contractor, Birmingham
⭐⭐⭐⭐⭐
“Excellent performance in plant room enclosure.”
Installed between boards with absorbent layers. Immediate reduction in vibration and transmitted noise.
— Facilities Engineer, Leeds
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“Designed properly, not oversold.”
The membrane is solid, but the system-first approach is what sets it apart. Refreshing to see it done correctly.
— Builder, Surrey
Why SilentCloud® ProMass 50
SilentCloud® products are engineered with system performance first, not marketing shortcuts.
✔ Installer-led design
✔ Clear, practical guidance
✔ Honest technical data
✔ No exaggerated single-product claims
✔ Reliable, repeatable results
Frequently Asked Questions
Is this self-adhesive?
No. This is a non-adhesive membrane, preferred for decoupled systems, mechanical fixing, and long-term stability.
Can it be used on its own?
No. Acoustic membranes must be combined with boards and absorbent layers to achieve effective soundproofing.
Does it help with impact noise?
When used within compliant flooring systems, it helps reduce vibration and impact transmission as part of the overall build-up.
What’s Included
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1 × SilentCloud® ProMass 50 Acoustic Membrane Roll
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Access to professional technical support if required
Order With Confidence
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UK-held stock
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Fast dispatch
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Trade and bulk pricing available
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Expert technical advice on request
