North Thin Ply Technology (NTPT), a leader in lightweight prepreg materials, has recently begun a new collaboration with 4a manufacturing, a specialist in thin foams and micro sandwich materials for acoustic and lightweighting applications.

NTPT and 4a began to work together earlier this year when 4a sought to increase the stiffness of the aluminium sandwich skins in materials for high-performance micro speakers typically used in mobile devices such as lap tops, mobile phones, and tablet computers.

One of the main challenges for prepreg materials in these thin sandwich materials is maintaining uniformity of the carbon fibre layers, become an even more critical property as ply weights decrease, the company explains.

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