what is acm panel

An ACM (Aluminum Composite Material) panel is engineered by sandwiching a polyethylene or mineral-filled core between two pre-coated aluminum sheets. This construction yields a panel that combines the stiffness and weather resistance of aluminum with the impact absorption and light weight of the core. For aluminum ceiling and facade systems, ACM panels serve as exterior cladding, soffits, and interior feature ceilings, offering smooth, planar surfaces and design flexibility.

Manufacturers apply PVDF or polyester coatings to the aluminum faces to protect against UV radiation, corrosion, and chalking. This allows for a virtually unlimited palette of solid colors, metallics, and custom prints that withstand harsh environmental conditions. The core material provides excellent formability, enabling on-site bending, rolling, and perforation without delamination.

Installation methods include through-fastening with rivets or screws into aluminum support frames or concealed clip systems for a flush appearance. Seams are sealed with gaskets or silicone to prevent water ingress. ACM panels are fire-rated when using mineral cores, meeting building codes for high-rise facades. Overall, the combination of light weight, durability, and aesthetic options makes ACM panels a cornerstone of modern aluminum ceiling and facade design.