Stacked white polyester fibre acoustic insulation batts

Acoustic panels

Polyester Fiber Acoustic Insulation

Build the cavity, not the surface

Cross-lapped polyester fibre batts engineered for efficient sound absorption within walls and ceilings. Designed to work inside the assembly where it matters most.

Discuss your build-up
01

Wall / ceiling section

Assembly logic that performs

Wall section (typical)
Typical wall assembly cutaway with polyester fibre acoustic insulation
Wall section (typical)
  1. Finish layere.g., gypsum board
  2. Mass / barrier layeroptional
  3. Metal stud framework
  4. Polyester fiber acoustic insulation
  5. Cavity space
  6. Base layersubstrate
Suspended ceiling section (typical)
Typical suspended ceiling assembly with polyester fibre acoustic insulation
Suspended ceiling section (typical)
  1. Ceiling finishe.g., gypsum board
  2. Resilient channeloptional
  3. Metal furring channel
  4. Polyester fiber acoustic insulation
  5. Primary structureslab / joist
02

Choose density by assembly

Typical configurable options. Confirm the final specification in the order documentation.

Density (kg/m³)
Thickness (mm)

Higher density and thickness can increase low-frequency absorption potential. Confirm with project-specific testing and overall system design.

03

Supplied performance

Density (kg/m³)Thickness (mm)ApplicationAcoustic function
3250 / 80 / 100Ceilings, light partitionsMid–high frequency absorption
4850 / 80 / 100Walls, ceilings, studiosBalanced broadband absorption
6050 / 80 / 100Walls, cinemas, classroomsEnhanced low-frequency control
8050 / 80 / 100Critical spaces, cinemasHigh absorption across low–mid range
9650 / 80 / 100High-performance assembliesMaximum absorption potential
04

Evidence status

Supplied claim — current evidence required

This product requires independent application and test evidence for your specific build-up.

Our technical team can support you with test planning, data packages and project documentation.

Discuss your build-up
04

Detailed supplied performance data

Reference values and claims remain subject to project verification

Sound absorption and airflow resistivity chart plots supplied for reference
Performance confirmation

Acoustic performance depends on the selected thickness, backing material, air cavity and tested installation build-up. Confirm the required specification before ordering.

Configuration-dependent acoustic performanceConfirm the applicable test method and construction before ordering.
Airflow resistivity (example)Test method: ISO 9053 (supplied data)
Supplied claims*
  • Fire performanceConfirm for the selected orderVerification required
  • Formaldehyde emissionConfirm for the selected orderVerification required
  • VOC emissionConfirm for the selected orderVerification required
  • Thermal conductivityConfirm for the selected orderVerification required

* All values are supplied claims only. Verification is required for project specification.

05

Material anatomy

Cross-lapped polyester fibres create interconnected voids that convert sound energy into heat through friction and air movement.

Layered polyester fibre acoustic insulation batt edge
Macro view of the polyester fibre structure
06

Applications

Versatile across demanding acoustic environments

Recording studios acoustic application direction
Recording studios
Cinemas & theatres acoustic application direction
Cinemas & theatres
Classrooms acoustic application direction
Classrooms
Hotel partitions acoustic application direction
Hotel partitions
Sports venues acoustic application direction
Sports venues
Mechanical rooms acoustic application direction
Mechanical rooms

Frequently asked questions

Questions before selecting Polyester Fiber Acoustic Insulation.

Clear the material, mounting and evidence questions before the product is released into a project.