Aluminum foam is used for applications that require a high level of energy and sound absorption characteristics. Researchers at the University Teknologi MARA (UiTM) in Malaysia have developed an innovative process to make high strength cellular aluminium foam with help from some salt.

Aluminium foam exhibits unique properties when compared to its dense form, particularly its lightweight characteristics. Generally, the foam can be divided into two categories; closed cell and open cell, both have different characteristics and applications.