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Rockfon | Sonar Activity B

Glued acoustic ceiling panels


Sonar Activity B are acoustic ceiling tiles that have been specially developed to combine high sound absorbing values with aesthetics. Because the 4 cm thick panels are glued directly to the ceiling, they are very suitable for rooms with a low height. This product can be supplied separately but can also be completely assembled.

– Adhesive
– Rockwool core
– In three sizes


The Sonar Activity B acoustic ceiling panels are sold in three different sizes:

  • 60 x 60 cm, sold per 5 pieces
  • 120 x 60 cm, sold per 5 pieces
  • 120 x 120 cm, sold per 4 pieces


The panels are available in the colour white.


– The panels contain a fireproof core of rockwool
– The sides are finished with a mineral fleece
– On the visible side the panels are finished with an acoustically open white coating.
– The panels are sprayed on the sides.
– The weight is approximately 7 kg/m².


– The panels are easy to customize yourself
– The panels can be mounted with assembly adhesive
– Once installed, the panels cannot be dismantled

Fire safety

Rockfon ceiling tiles have a core of rockwool. Rockwool is non-combustible with a melting point higher than 1000º Celsius.

Absorption values

Rockfon Sonar Activity B absorptie

per stuk
€ 0,00 incl. VAT
Delivery time 2 to 3 weeks

Ask the experts

If you want more insight into the current acoustic situation, you can request a measurement on location.

Ask for advice
Yalmar Ras
Yalmar Ras
Acoustics specialist

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