Soundproof Insulation Cotton

Soundproof Insulation Cotton

Soundproof Insulation Cotton is a flexible porous fiber material used within wall, floor, ceiling, and HVAC assemblies for sound absorption and thermal insulation, helping reduce reflected sound and reverberation.
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Description
Technical Parameters

Soundproof Insulation Cotton is a flexible porous fiber material used within wall, floor, ceiling, and HVAC assemblies for sound absorption and thermal insulation, helping reduce reflected sound and reverberation.

 

Technical Specifications

 

Parameter

Specification

Material Composition

Polyester fiber, recycled PET, glass wool, or rock wool, depending on product configuration

Available Thickness

25, 50, 75, and 100 mm

Density Range

Polyester: 20–64 kg/m³; Rock Wool / Glass Wool: 40–80 kg/m³

Fire Safety Rating

Class A (Mineral Wool) / Class B (Polyester), subject to the applicable test standard

Moisture Absorption

<1% by volume under the stated test conditions

Thermal Conductivity

0.033–0.040 W/(m·K), depending on material density

Acoustic Performance

NRC 0.70–0.95, depending on thickness, density, and mounting method

 

Applications

 

Residential Construction: Used in interior partition walls and floor assemblies as part of a sound-control assembly.
Commercial Buildings: Installed behind drywall or acoustic panels in offices, conference rooms, and hotels for interior acoustic treatment.
HVAC Systems: Used as duct lining or external insulation for HVAC noise and thermal control.
Industrial Facilities: Applied in machinery enclosures, generator rooms, and equipment areas requiring acoustic treatment.

 

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Acoustic Performance

 

Noise Reduction Coefficient: NRC values typically range from 0.70 to 0.95, depending on material thickness, density, and mounting method.
Sound Transmission Class: When incorporated into properly designed wall assemblies, acoustic insulation materials can contribute to improved STC performance. Actual results depend on wall construction, stud configuration, gypsum board layers, installation, and other assembly factors.
Broadband Absorption: Porous fiber structures absorb sound energy across a broad frequency range, helping reduce reflected sound and reverberation.
Resonance Dampening: Helps reduce standing waves and hollow echoes within enclosed cavities and partition voids.

 

Material & Construction

 

Porous Matrix: Open-cell fiber structures help convert sound energy into low-level heat through air friction within the material.
Recycled PET Options: Recycled PET options are available for projects requiring sustainable acoustic materials.
Binder Composition: Low-VOC bonding agents hold the fibers together, helping maintain material integrity and ease of handling.
Edge Integrity: Factory-trimmed edges allow close fitting between studs and joists, helping minimize gaps within acoustic assemblies.

 

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Thickness & Density Options

 

Thickness Range: Available in standard thicknesses of 25mm, 50mm, 75mm, and 100mm to match standard framing depths.
Density Gradations: Standard densities range from 24 kg/m³ to 64 kg/m³ for polyester variants, and up to 80 kg/m³ for mineral wool options.
Custom Sizing: Custom cut lengths and widths available to fit non-standard stud spacing or specialized equipment housings.
Compression Packing: Delivered in compressed rolls or vacuum-packed bundles to optimize shipping volume and lower freight costs.

 

Custom Manufacturing

 

Custom Dimensions: The material can be supplied in dimensions suited to customer installation requirements, reducing on-site cutting.
Material Configuration: Polyester, recycled PET, glass wool, and rock wool configurations can be discussed according to the required product type and application.
Specification Matching: Thickness and density can be matched to the intended construction and insulation requirements based on project specifications.
OEM & Bulk Supply Capability: We support OEM production for distributors, contractors, and project suppliers, including customized dimensions, packaging, labeling, and specification requirements.
Bulk Supply Requirements: Custom product specifications can be reviewed for wholesale orders, including dimensions, material configuration, packaging, and other agreed production requirements.

 

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Quality Control Process

 

Raw Material Testing: Incoming PET fibers, glass wool, and mineral binders undergo laboratory checks for fiber length and purity.
Density Verification: Random samples from every production batch are weighed and measured to ensure thickness and mass compliance.
Flame Retardant Testing: Periodic burn tests verify that anti-flammability treatments meet specified regional safety standards.
Dimensional Inspection: Width, length, and squareness checks are performed prior to packaging to ensure consistent installation fit.

 

Factory Supply Capability

 

Production Output: Automated manufacturing lines maintain a steady output capacity suitable for large-scale commercial and industrial orders.
Bulk Inventory: Standard thicknesses and densities are kept in stock to ensure rapid dispatch for urgent project timelines.
Export Packaging: Materials are securely palletized and shrink-wrapped to withstand long-distance maritime and land transit.
Direct Factory Pricing: Bulk wholesale terms available directly from the Qingdao production facility with transparent volume pricing tiers.

 

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FAQ

 

Q: Can you provide a sample before bulk ordering?

A: Yes. Samples can be provided for specification and installation evaluation before bulk production.

Q: Can you provide a COA for each batch?

A: Yes. A COA can be supplied with batch-specific test results according to the agreed specification.

Q: Is an SDS available for the product?

A: Yes. SDS can be provided for applicable material configurations and shipment requirements.

Q: Can you provide acoustic test data?

A: Acoustic test data can be supplied when available for the specified thickness, density, and mounting condition.

Q: Can you manufacture to our drawings?

A: Yes. Drawings can be reviewed for dimensions, tolerances, cutting requirements, and other production details.

Q: Can you use our product labels?

A: Yes. Customer-supplied labels or agreed private-label formats can be arranged for qualifying orders.

Q: Can you separate different specifications within one shipment?

A: Yes. Different specifications can be packed and labeled separately when confirmed before production.