TOPPERFO CLOU 8/8/2.0 The small Clou-perforation in the grid of 8mm and with a diameter of only 1.2mm is hardly visible from some distance. This is why the wooden structure keeps its natural beauty. TOPAKUSTIK-Clou features excellent absorption values in the range from low- to mid-tones. This makes it is highly suitable for lecture rooms and auditoriums. Topperfo Clou has an excellent absorption due to a funnel-like function in the panel. Small holes directly underneath the surface get wider as they go to the back, this causes soundwaves to be led away even better. Surface finishing: available in every Ral/NSC color / (pre-treated) wood veneer / provided with HPL/CLP and in a wide range of melamine decors. Panels: Available as custom-made panels, for applications such as closet and sliding doors, partition walls and shutters (also available as planks). Fire retardant: Also available as FR with a MDF Euro fire class B-s2,d0 core.