Acousti-Fill Underlayment

Lightweight, trowel-applied flooring underlayment for absorbing sound.

Dex-O-Tex Acousti-Fill is a lightweight, trowel-applied flooring underlayment designed to absorb sound and reduce sound transmission. Its latex composition contains a sound absorptive, vibration-damping aggregate, which markedly reduces Impact Noise Radiation (INR) and improves the Sound Transmission Classification (STC).

Acousti-Fill can be installed beneath a variety of floor finishes, including carpet, resilient tile, ceramic tile. It can also be used to absorb sound on promenade decking for apartment or condo complexes or in mechanical equipment rooms to dampen intense sound vibrations.

Advantages

Reduces Impact Noise Radiation (INR) and improves Sound Transmission Classification (STC)
Monolithic
Light weight
Quick installation over a wide range of surfaces
Green technology
No toxic odors during installation
Installed only by professional, factory-trained Dex-O-Tex contractors

Technical Info

Compressive Strength ASTM C109 (2″X2″ cube) – 250 psi
Surface Hardness ASTM D2240 Durometer
- Scale “A” – 75
- Scale “D” – 20
Indentation Characteristics (Impacted Load) MIL-D-3134, Para. 4.7.3. (2 lb. ball) – No cracking or loss of bond indentation 0.047″
Adhesion MIL-PRF-3135, Para 4.5.12 (Shear from steel plate) – 125 psi
Resistance to Elevated Temperature – No flow or slip MIL-PRF-3135 Para 4.5.5. – Complies
Density Weight per Cu. Ft – 60 lbs
Weight pounds per sq. ft. at 1″ thickness – 5 lbs.
Impact Noise Radiation (INR) At 1″ Thickness ASTM E492 – INR 0
Sound Transmission Classification (STC) At 1″ Thickness ASTM E413-04 – STC 51
At 1/2″ Thickness over 6″ Thick concrete – STC 49
Yield – 13″ feet squared at 1″ thickness