Product Description
Danosa M.A.D.4 (Membrana AcΓΊstica Danosa) is a 4 mm high-density bitumen-modified acoustic membrane engineered for maximum low-frequency noise control in demanding architectural and industrial soundproofing applications. Supplied by Aural Exchange, M.A.D.4 delivers substantially higher acoustic mass and damping performance than thinner membranes, making it ideal where low-frequency resonance is the dominant problem.
Designed to function as an anti-resonant mass layer, M.A.D.4 is a proven substitute for traditional lead sheets. When installed between rigid or elastic layers, it behaves as a panel absorber, delivering strong attenuation in the most difficult frequency bands.
Key Features & Advantages
- High-density 4 mm bituminous acoustic membrane
- Nominal surface mass of 7 kg/mΒ²
- Engineered for low-frequency resonance control
- Significantly higher performance than 2 mm membranes
- Effective replacement for lead-based acoustic barriers
- Improves insulation performance in lightweight constructions
- Reduces structural resonance and vibration transmission
- Compatible with mechanical fixing or adhesive installation
Measured Acoustic Performance (Laboratory Tested)
- Airborne noise improvement on laminated gypsum board partitions: ΞR = 5 dBA (EN 140-16)
- Low-frequency insulation improvement at 125 Hz (between elastic / spring elements): 9.5 dB
- Low-frequency insulation improvement at 125 Hz (between rigid elements): 8 dB
Results obtained from approved laboratory testing. Actual system performance depends on full construction design.
Technical Specifications
| Thickness | 4.0 mm |
| Mass per unit area | 7 kg/mΒ² |
| Roll dimensions | 6 m Γ 1 m |
| Coverage per roll | 6 mΒ² |
| Youngβs modulus | 70 kPa |
| Poisson coefficient | 0.48 |
| Reaction to fire | C-s3,d0 (EN 13501-1) |
| Watertightness | Pass at 10 kPa (UNE-EN 1928) |
| Dimensional tolerance | < 10% |
Environmental & Sustainability Data
- VOC emissions: 50 Β΅g/mΒ³ (ISO 16000-6)
- Total recycled content: 22%
- Post-consumer recycled material: 60%
- Environmental Product Declaration: EPD S-P-01923
Typical Applications
- High-performance drywall partitions
- Recording studios and critical listening rooms
- Home theatres and cinemas
- Industrial noise enclosures
- Metal sheet damping for machinery housings
- Walls, ceilings, and floors requiring enhanced low-frequency isolation
Installation Notes
- Installed as part of a complete sound insulation system
- Positioned between rigid or elastic layers to control resonance
- Can be mechanically fixed (stapled) or bonded using approved adhesives
- Do not expose to temperatures above 80Β°C
- Keep away from direct flames and heat sources
This product provides acoustic mass only. Overall soundproofing performance depends on correct system design, decoupling, and sealing.
Aural Exchange is Asias leading exporter of Danosa M.A.D.4 High Density Acoustic Membrane to top importers and distributors worldwide. With a strong export presence in Brazil, France, Germany, Italy, the Netherlands, Oman, Portugal, Saudi Arabia, South Africa, Thailand, the United Arab Emirates, the United Kingdom, the United States, Sri Lanka, Vietnam and Qatar, as well as major import markets such as China, India, Australia, Mexico, and Canada, Aural Exchange has built a solid reputation for reliability and consistency. Backed by consistent monthly production capacity, supported by a strategic factory network across South Asia, we ensure fast, efficient, and cost-effective deliveries to our global partners. Known for quality, innovation, and dependable service, Aural Exchange is the trusted choice for buyers seeking to import Danosa M.A.D.4 High Density Acoustic Membrane for acoustic, commercial and industrial applications.
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