Light weight High strength Excellent flatness Noice absorption Water resistance FRP skin+glue+alu core+ glue+ FRP skin Thickness of front skin and reverse skin:1.0mm,1.5mm,2.0mmMaterial of core: aluminium honeycomb core Standard thickness: 12mm,15mm,18mm,20mm,30mm,40mm,50mm. Maximum size: 5000mm(L) x 1800mm(W).It is ideal reinforced panel for stone,Mosaic. FRP honeycomb panel .