Aluminium Composite Material(ACM),or HLCALUMINIUM as more commonly known, is a lightweight board. Constructed of two sheets of painted aluminium,with a solid plastic centre. ldeal for either short or long-term outdoor use,being weather and rust resistant. HLCALUMINIUM is rigid, durable and very stable material. As with most composites, HLCALUMINIUM is extremely strong and hard wearing.Our direct to HLCALUMINIUM digital printers achieve high quality output at 1440dpi. With excellent colour accuracy, ensuring your branding colours look just how they should.