Skip to main content

AngelStep® 484P Technical Info

Home » Products » AngelStep® 484P » AngelStep® 484P Technical Info


  • Outstanding acoustic performance
  • High sound absorption
  • Water & chemical resistant
  • Will last the life of any floor material
  • Easy to install
  • Zero VOC’s, no emissions, non toxic
  • Nominal 10mm thickness
  • Australian designed & manufactured
  • Vibration damping absorber made from 75% recycled materials


  • Designed for a maximum traffic load of 65KN/m2 (approx. 6,500kg/m2)
  • Compressive strength at 10% deformation (EN 826) = 88.7 kPa
  • Dynamic stiffness (ISO 9052-1) = 180.92 MN/m³
  • Compressibility (EN 12431) = 0.2mm @ 50 kPa

VOC emissions tested by Cetec Pty Limited (CV080408) for chemical emission & is classified as low VOC.

VOC Concentration 0.01mg/m3

Acoustic Tapping Test

Acoustica’s product range of noise control solutions for flooring systems has been repeatedly independently tested to consistently achieve five and six stars in the Association of Australian Acoustic Consultants (AAAC) star rating system. However, results will vary depending on the construction, substrate and surface materials of each project.

Acoustica can refer you to a reputable acoustic consultant to conduct site specific testing* who will provide certification for each project site, prepared in accordance with the International Standard ISO 16283-1:2014 Acoustics — Field measurement of sound insulation in buildings and of building elements — Part 1: Airborne sound insulation (refer ISO 140-7:1998).

There is a charge for this service*.


The BCA provides minimum construction standards for various building classes including acoustic privacy.

The BCA requirement is a weighted standardised impact sound pressure level with spectrum adaptation term Ci, of less than or equal to 62 Lnt,w+Ci.

However, the reality is that this is in most cases unacceptable to occupants and can result in the need for costly reparation works.

In response the Association of Australian Acoustic Consultants (AAAC) has developed the star rating system to rank the acoustical quality of apartments and provide guidance in the design and construction process.


AngelStep® 484P was designed to treat light-weight timber floor system (timber joists with plasterboard & chipboards). The combination of two noise barriers & resilient sound absorbent core tests both impact & airborne noise. This material is suitable and can be installed under* solid timber floor, engineered timber floor, ceramic tiles, vinyl, carpet or carpet tiles.

Impact Isolation of floors (Lnt’w) AAAC Description

6 star


Just audible or not audible

5 star


Just audible

4 star



3 star


Clearly audible

2 star


Clearly audible



Clearly audible

Floor Impact Testing

Untreated timber joist flooring systems that separate individual tenancies exhibit very poor impact isolation performance. It is estimated that for the untreated floor system the L’nT,w would be in the region of 75 with a correction of nominally 0, resulting in L’nT,w + CI.of 75.

This level of performance would not comply with the current Building Code of Australia requirements of L’nT,w + CI of 62. The installation of the AngelStep® 484P underlay has resulted in a significant improvement in impact isolation between tenancies (an improvement of ≈ 17 to 19 dBA).

Victoria St, Potts Point – Wilkinson Murray, Ref: 09053 Ver A

Bare floor: L’nT,w 75.
Second line; AngelStep® 484P with 19mm YT + 20mm T&G floor: L’nT,w 50.

Acoustica are specialists in refining solutions to tune your project to achieve an optimal outcome. Please contact us for our custom and specialist solutions.

Contact our sound-proofing experts
Close Menu

Not sure which Acoustica product is right for you?

Product Selector