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Diffusion™ is a New Zealand made laminated plasterboard ceiling panel designed to reflect sound and to compliment Triton™ high sound absorbing ceiling panels. Laminated with the same Sonatex™ finish, Diffusion™ panels can be mixed and matched with Triton™ absorber panels to enhance speech clarity, intelligibility and the tonal qualities of played music.

Manufactured from plasterboard laminated with fire resistant Sonatex™ glass mat facing. Made in NZ.

Key Features
  • Provides early sound reflections to balance room acoustics, improve clarity of speech and non-amplified music
  • Fire group 1-S
  • Broad range of Sonatex and Sonaris perforated acoustic laminate finishes for design freedom
  • 8kg m² mass helps attenuate transmitted noise
  • Helps attenuate and muffle rain noise under metal roofing
  • Durable high density composite construction resists damage from knocks and scrapes
  • Can support weight of lights and air grills up to 1kg
  • Made in NZ, for short lead times and replacement parts
  • Product stewardship renew and reuse program
  • Low VOC material
  • Dimensionally stable, easy to cut and trim
NZ Made
NZ Made
NZ-Owned Business
NZ-Owned Business
Recyclable Content (Post-Consumer)
Post-Consumer Recyclable Content
Scope of Use

Diffusion™ is ideal for use in music rooms as well as traditional didactic style teaching spaces, lecture theatres where it is desired for the teachers voice to be projected to the back of the room.

Suitable for fire exit way and all other sprinklered & non sprinklered buildings.

Limitations on Use
  • Not for exterior use
  • Installation shall not commence until the building is watertight and dry
  • Light fittings or other point loads greater than 1.0 kg shall be independently supported
  • Backloading max. 3.0 kg/m²
  • Max 99% R/H at 45°C
  • Use hold down clips in areas for seismic 
Statement of Building Code Compliance
  • Fire Reaction - NZBC verification method C/VM2 material group number: 1-S. Suitable for fire exit way and all other sprinklered & non sprinklered buildings
  • Clause B2 — durability, 5 years
Other Performance Attributes
  • Light Reflectance - 83% per BS8493:2008, White
  • Product stewardship renew and reuse program available
  • Packaging take back and reuse scheme available
B2 Durability compliant
F2 Hazardous Building Materials compliant
Hazardous Building Materials
Interior Fire Rating 1S
Test Results
Test Results
Asona Diffusion


Maintenance: Triton Range
Plasterboard Care & Maintenance

Asona Ltd are a manufacturer, distributor and installer of acoustic and decorative ceiling and wall panels.

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