dBRock

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dBRock is a viscoelastic material in combination with a  Whispermat barrier layer for added mass to improve the sound transmission loss particularly at mid to high frequencies that can be used to bond panels together, providing constrained layer damping to sheet rock walls and hardwood floors.

Apply dBRock to first layer of sheet rock which is already installed on wall

dBRock reduces the impact noise from foot traffic on hard wood floors by damping the resonant frequencies in the structure from the impacts.

The room to room noise penetration from home entertainment centers or musical instruments is also greatly reduced.

Incorporating dBRock in normal wall construction improves the transmission loss in two critical regions.

First: at the resonance frequencies of the structure the peak vibration levels are reduced about 10 fold. This will be particularly noticeable in the reduction of impact noise such as the sound of people walking on hard wood floors

Second: at mid to high frequencies there is a phenomenon referred to as the coincidence frequency. This is the sound that has the same wavelength in air, as does the bending wave in the panel at the same frequency. This wavelength matching reduces the sound transmission blocking effect of the panel severely.

Key Benefits

bulletLow weight  and high damping performance
bulletAdds transmission loss without
bulletAvailable in Sheets or rolls with PSA

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Last modified: October 16, 2008