ACP is a widely-used term, describing flat panels that consist of a non-aluminium core bonded between two aluminium sheets. ACPs are frequently used for external cladding of buildings (building facades). The main advantage of ACP is that it is very rigid and strong despite its light weight. Due to the ability of painting the aluminium in any kind of colour, ACPs are produced in a wide range of metallic and non-metallic colours as well as patterns that imitate other materials, such as wood or marble. Applications of ACPs are not limited to external cladding of building’s, but can also be used in any form of cladding such as partitions, false ceilings etc. Aluminium Composite Panels are also widely used within the signage industry as an alternative to heavier, more expensive substrates.