Introduced initially as a joint venture between Alusingen and BASF in 1969, ACP gained mainstream popularity only in the mid-1980s when builders realized that it could enhance architectural performance at reduced costs. ACP has come a long way. From being used just as signages in the beginning to now being a major architectural material, ACP finds applications in various projects and spaces. Internal wall coverings, container constructions, building renovations, machine coverings, and architectural claddings are some of the many ways ACP panelling is now being used.
Aluminum Composite Panels are the most widely used material in the facade industry and are the preferred choice for building temporary elements, as well. Over the years ACP has evolved in its composition as well as its applications. Its lightweight construction, fire-retardant properties, and durability make it the most used material in construction.
As more brands began to deal with ACP, significant changes began to occur in the composition of the aluminium panels. We take a look at the three general categories that are available today.
PE Cores: These cores are flammable and are made of 100% polyethene.
FR Cores: Made of a composite material containing 70% to 90% of rock wool/rock fibre/mineral wool, magnesium hydroxide, and alumina trihydrate, these cores are non-combustible and act as a fire retardant.
Aluminium Cores: These cores are either made from solid aluminium or an aluminium honeycomb structure.
When it comes to the paint finish and coatings for ACPs, PE and FR cores are coated with polyester paints and PVDF resin. Panel sheets, however, are coated with Nano PVDF.
The architectural advantages that ACPs provide over other building materials are as follows:
Durability
Material adaptability and flexibility
Lighter weight
Comprising a polyethene base core sandwiched by aluminium skins and coated with PE paint, these are recognized by their black cores. These panels are cost-effective and are widely available in different colours. However, they are not suitable for outdoor use or where fire-resistant materials are required.
These come in 2 forms: B1 Airybond and B1 standard. B1 AIrybond has a grey/white core made of polyethene and 70 to 75% mineral composites. The B1 standard panel has a bright white core with a PVC base and mineral composites. Both panels are fire-resistant for 20 mins on their own and are suitable for external facades and fascias and interior cladding as well.
They are identified by their hard-stone core and white pore colour. Made with a blend of polyethene and 90% mineral composites, the core provides excellent fire rating. It can be used on multi-story buildings and facades. However, these panels are quite heavy and require carbide tooling to attach them. They can also combust after 30 mins of burn time.
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