At Butong, we understand the importance of good acoustics!

Good sound environment is important for health and productivity and communicates quality and solidity. Conversely, poor sound environment gives a low-quality feeling to the room, the owner and the business.

Butong’s acoustic filters have the market’s best fire class, A1.
Since the panel is 100% concrete, and thus glue-free, it is in principle emission-free, with the best class in all EU standards.

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Whether you design rooms or sounds, Butong offers completely new possibilities for visual expressions.

The panels can be colored, act as light filters and easily shaped in 3D to create exactly the spaciousness and sound environment you strive for. Although solid attenuation in many cases is primary, we understand that sound quality depends on so much more. The open area in our filters can be controlled from zero to seventy percent without affecting the appearance, for seamless acoustic transitions.

Red Atrium Vilnius colored acoustic panels in concrete from Butong AB

The cavities of the panels effectively diffuse high frequencies. If you want to work with reverberation without echo of low frequencies, the panels can also be easily shaped in 3D for concave and convex surfaces that can also be double-curved. The panels are shockproof and are not affected in any way by moisture.


CCPP project with acoustic panels creating a noise reducing wall
Wennerström acoustic wall in translucent concrete designed by Butong AB

Projects with our acoustic panels are often noticed in the international media and consist in all sizes, from interior details to large atrium. We can therefore be your solution for a conceptually strong architecture, where suspended ceilings, walls, fixed furnishings and even plant walls can be built in the same panel with seamless transitions.


Feel free to download documentation of our lab tests:

Acoustic description for professionals in English (2.5 MB)

Fire – Non-combustibility according to EN ISO 1182 in English

Emissions – VOC EMISSION TEST REPORT IAC Gold  in English

Emissions – VOC EMISSION TEST REPORT M1 in English

Studioverket acoustic panels by Butong working as illumination for a beautiful room


Green facades from Butong in Uppsala makes the city greener
Green facades
Green walls by Butong AB make beautiful vertical gardens

Green walls

Suspended ceiling from translucent concrete in a wavy pattern by Butong

Suspended ceilings