REGUPOL sonus curve 6 Acoustic Underlay (formerly REGUPOL 6015 6/3mm)


New product


REGUPOL sonus curve 6 is an acoustic underlay with a 3D dimple profile used for soundproofing solid timber, engineered timber and T&G flooring. The acoustic performance of this underlay makes it ideal for apartments.

More details

More info

Areas of application:   


Independently tested under laboratory controlled conditions and on-site testing to show it meets the Deemed-to-Satisfy Provisions of the current building regulations in accordance with the Building Code of Australia Part F5.4 sound Insulation Ratings of Floors (Impact).

  • Offers long term performance without collapse or bottoming out.

  • Minimal creep, even under high loads.

  • Resistant to ageing and deformation.

  • Quick and easy to install.

  • PVC free.

  • Made in Germany from recycled materials.

  • Minimises construction heights.

  • A Good Environmental Choice Australia (GECA) certified sustainable product.

  • High quality and exact material thicknesses.

  • Suitable for use with under floor heating.

  • Protects expansion joints.

  • Limits sound transference.

  • Cushioning qualities make flooring comfortable underfoot.

  • Proven durability.

  • Manufactured and Certified to OHAS 18001:2007, DIN ISO 9001:2008, DIN ISO 14001:2004 Management Systems. 

NATSPEC product partner


Regupol adhesives are formulated to maximize the performance of Regupol flooring and acoustic products. Regupol adhesives are made in Australia and are VOC compliant for green buildings, offering specifiers and installation contractors a warranted flooring system.

Data sheet
Product descriptionPre-manufactured acoustic underlay made from selected SBR rubber, bound with polyurethane
Roll width1.25 metres
Roll length20 metres
Modular tile size1050 x 600mm
Material thickness6mm (3mm dimpled surface on one side)
Specific weight2.75kgs/m2
Thermal conductivity0.14 W/mK
Tensile strength0.5 N/mm2 (DIN 53571, Specimen B)
Elongation at break70% (DIN 53571, Specimen B)
Temperature resistance-40˚C to +115˚C
Fire classificationB2 (DIN 4102)
NoticeData is based on periodical lab testing of test specimen taken from the actual manufacturing process and show the average values as measured. Slight tolerances within the common limits are possible.

Acoustic Performance (test results for engineered timber)


TEST: Gabba TTMLnT,w(C1)FllC
Bare Slab 150mm concrete73 (-12)29
Regupol 6015 6/3mm with 14mm Engineered Timber58 (0)=5848
Improvement∆L'nT,w 15∆Fllc 19


The Unit of Measurement Explained:

L'n,W - Weighted Normalised Impact Sound Pressure Level.

C1 - Correction factor which allows spectrum adaptation for impact sound level.

Underlay Brochures - Timber

Further Technical Information

You can find further technical information, such as

tech data sheets and test reports

on the main ABS West website at:

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