... alu. alloyCoating: PVDF, FEVE, PolyesterCore : non broken LDPE, fire rate mineral coreSpecification:Panel Thickness: 2mm-6mm, recommend 2mm,3mm ... large digital printing*high strength, extreme rigidity *UV resistance, rub-resistance, used indoor and outdoor*Outstanding color and gloss retention ... maintenance, simply cleaning*Easy to process*High corrosion resistance Fire proof aluminum composite panels