KUREHA Microsphere is a closed cell foaming agent that is sometimes referred to as thermo expandable microcapsules. The hydrocarbon blowing agent resides inside an acrylic shell. When exposed to heat the shell softens while the pressure inside increases, allowing for rapid expansion.

KUREHA Microsphere is used in wide range of applications including ceiling materials, glass run channels, weather strips, shoe soles, foam ink, wallpaper, heat release tape, artificial leather, and 3D printers.