Fireproof Sound Absorbing Cotton is a PET-based acoustic material developed for architectural and commercial projects where sound absorption and fire-performance requirements need to be considered together.

Technical Specifications & Parameters
|
Parameter |
Specification Details |
|
Material Composition |
100% Recycled Polyester (PET) Fiber |
|
Standard Dimensions |
1220 × 2440 mm (Custom sizes available upon request) |
|
Available Thickness |
9 mm, 12 mm, and customized thicknesses |
|
Density Range |
100–300 kg/m³ |
|
Acoustic Performance |
NRC up to 0.95 (Dependent on thickness, mounting method, and air cavity) |
|
Frequency Response |
Effective across 100–4000 Hz range |
|
Processing Options |
Straight cutting, CNC profiling, and die-cutting |
|
Fire Performance |
ASTM E84 Class A (configuration dependent) |
|
Thermal Stability |
Operating range: -40℃ to +120℃; low thermal conductivity |
Why Choose Fireproof Sound Absorbing Cotton
Fire-Rated Compliance
Engineered for projects requiring certified fire safety. Qualified configurations are backed by documentation tailored to regional standards.
Efficient Reverberation Control
The porous PET fiber matrix absorbs sound energy to minimize mid-to-high frequency reflections, improving overall speech clarity and acoustic comfort.
Concealed System Integration
Functions as a high-performance internal core layer within wall panels, ceiling assemblies, and partitions without impacting the final aesthetic finish.
Adaptable Custom Fabrication
Easily cut, CNC-profiled, or die-cut to fit complex architectural geometries, irregular shapes, and tight installation tolerances.
Eco-Friendly Recycled PET
Manufactured from 100% recycled polyester fiber, offering a lightweight, sustainable acoustic solution for green building requirements.

Typical System Integration
Fabric-Wrapped Acoustic Panels: Positioned directly behind decorative acoustic fabrics to provide structural body and sound damping.
Perforated & Slatted Wall Systems: Installed in the cavity behind wooden or metal slotted surfaces to trap and absorb passing sound waves.
Suspended Ceiling Solutions: Utilized inside acoustic baffles, ceiling clouds, and drop-ceiling grids to control overhead noise buildup.
Partition Walls & Cavities: Placed inside stud-framed partitions to upgrade the overall acoustic absorption index of dividing walls.
Equipment Enclosures: Integrated into machinery housings or technical casework to dampen mechanical noise where fire performance is mandatory.
Fire Performance & Documentation Support
For applicable configurations, Greenwall can provide relevant fire-performance data sheets and laboratory test documentation for project evaluation and compliance submissions.
When requesting a quotation, buyers should specify:
- Required fire standard
- Target fire rating
- Project country or market
- Material thickness
- Density requirement
- Intended installation system


FAQ
Q: How does this product differ from standard polyester acoustic cotton?
A: This variant is formulated specifically for projects requiring documented fire-performance attributes alongside acoustic control, making it suitable for regulated commercial spaces rather than general decorative applications.
Q: Can this material be supplied cut-to-size for specific project drawings?
A: Yes. We support custom cutting, CNC routing, and dimensional sizing according to project blueprints and installation schedules.
Q: What fire documentation is available for review?
A: Relevant test reports and material data sheets can be provided for applicable specifications. Please specify the required regional standard when submitting an inquiry.
Q: Is this material suitable for visible surface installations?
A: While it can be used in hidden or semi-exposed configurations, it is primarily optimized as an internal core or backing layer behind fabrics, perforated panels, or slatted walls.
Q: Can this material be used in high-humidity or outdoor-sheltered environments?
A: Yes. The polyester fiber composition is naturally hydrophobic and resistant to rot, mold, and mildew, making it suitable for damp locations.
Q: Do you provide laboratory acoustic test reports (NRC data)?
A: Yes. Full third-party acoustic testing reports and fire certification documents are available upon request for project bidding and compliance filings.
