Used under screed, this is the most efficient solution to absorbe impact sound noise in buildings through the concept of MASS/SPRING/MASS.

Due to the characteristics of the raw material, it presents high resistance to compression, ensuring performance and safety for the acoustic floor system in the long term.

Due to its high density, it allows for the execution of less thick screed, with polypropylene microfiber, rendering the installation more productive and with a competitive total system cost. Check the technical manual with Aubicon service for the execution of the screed prepared by a specialized company.

Aubicon - Mantas Acústicas e Pisos para Absorção de Impacto


Durability, thinner and manipulated flooring with microfiber, used in wet areas, flooring does not feel hollow or floating. Alkali-resistant material.


    COMPOSITION: Pre-fabricated recycled tire granule mat bindedwith polyurethane

    THICKNESS: 2,3,5,8 and 10mm ( others on demand)

    DENSITIES: 600 and 750 Kg/m³3

    MEETS VUP: Higher level (over 20 years)


    • Before applying the underlayment, slab must be clean;
    • Remove excessive mass, especially in the point between the slab and masonry.;
    • Retire o excesso de massa, principalmente no encontro entre laje e alvenaria.
    • With a stylet, cut the mat leaving 1 cm in masonry for 3 and 5 mm underlayments. For 8 and 10 mm mats, cut them in the measurement of the room;
    • Calculate an overlap of 5 cm between materials for 3 and 5 mm mats. For 8 and 10 mm mats, support one beside the other and apply silver tape to all mends.
    • Support the mats onto the slab and later the footer strips behind it. Do that for the perimeter of the room;
    • The footer shall separate areas with acoustic flooring from areas without acoustic flooring;
    • Holes in the mats shall be filled with a piece of the same material;
    • Tubing shall pass over the underlayments and there shall be 2cm of mass between the tubing and the surface.
    • Follow the instructions of the Aubicon Flooring technical manual;
    • One may add microfiber to the flooring and use metallic screens in the re-entry corners;
    • Trace with ¼ (cement/sand) with fluffy texture and average thickness of 4 cm;
    • Compact the flooring with a socket/compacter and apply a wet cure;
    • Cut excess from the footers at the height of the final cover.



    Sound Soft Acoustic Underlayments have the advantage of presenting acoustic comfort and durability for the useful life of the work. This product has low compressibility and basically returns to its original thickness even when submitted to loads of up to 20 kN/m2. It is permanently elastic and possesses a high resilience capacity, allowing for maximum loads of 2500 kg/m2 without affecting performance.

    Acoustic Mats

    The compression fluency test analyses material behavior in the long term when compressed by a specific weight. There was a loss of 7% in thickness under a 10 kPa load. This result ensures that the flooring and applied cover do not suffer damages during the useful life of the work due to system movements. The material was also tested in order to verify resistance to mediums with high alkaline content such as concrete. One may observe that the product is alkali-resistant and, therefore, inert to alkaline attack.

    The material was also tested to identify their resistance to high alkalinity media content such as concrete. It can be seen that the product is alkali-resistant and hence an inert material to alkaline attack.

    Inner flooring≥ 13≥ 17≥ 20
    NBR 15575 – VUP (Project useful life).


In the test performed with the underlayment in an extended slab (IPT – Technical Report no. 90907-205), the reduction of impact sound pressure was 14 dB and L’nt,w was 58 dB, meeting the intermediate standard of the Brazilian norm. In a reinforced concrete slab, the result with the same underlayment was 49 dB (IPT Technical Report no. 108 250-205) meeting the Higher level of the Performance norm 15575-3 ABNT.


Frequency (HZ)Without ubderlaymentSound soft5 mm
L’nT,w72 dB58 dB
*IPT Technical Report n º90 907-205.