Acoustic bulkhead class B-15, the system is made up by two lines of 25 mm thick bulkheadpanels ISONELL B-15, separated by an about 20 mm thick air chamber, making up in total a 70mm thick panel of ISONELL 25 mm thick B-15 panels of are sandwich panels made up ofgalvanized steel plates and wool rock inside.
The plate exposed is 0.7 mm thick, made up of a galvanized steel plate with PVC lining, with fireretardant certificate.
The side not exposed is made up of galvanized steel plate,0.5 mm thick.
The inside of the panel is lined with wool rock.
The same as standard bulkheads this type of bulkheads have the necessary profiles for fitting.