... 5. easy to instal, Customized Standard Dimension1220mm*2440mm*3mm1220mm*2440mm*4mm ThicknessPolyester 3mm 0.12,0.15,0.18,0.21mm ... 4mm 0.12,0.15,0.18,0.21,0.30, ... 0.35,0.40,0.45,0.50PVDF 4mm 0.3,0.35,0.40,0.45,0.50 ... strength(c) Super weather resistance(d) Excellent impact resistance 3-4mm aluminum composite