Coextruded film of polycarbonate main layer and polymethyl methacrylate top layer with a:
 
-total thickness of more than 230 μm but not more than 270 μm,
 
-top layer thickness of more than 40 μm but not more than 55 μm,
 
-defined surface roughness of the top layer of 0,5 μm or less (according to ISO 4287),
 
-UV-stabilized top layer
Airworthiness tariff suspension
condition:C,certificate:C119,action:27|condition:C,action:07