Perlite has the characteristic trait of swelling up like foaming grain, caused by the softening of its relatively hydrous amorphous volcanic glass in an extremely fast heating process (around 900℃) followed by the vaporization of the water molecules enveloped inside the rock. The swollen grains become tiny and light isolated glass foam. When the swollen grains are pulverized and inspected, it is clear that the minute pathways within are almost like mazes. The pulverized and graded Perlite made with this characteristic process is used in all manner of diverse ways.

Our company has a sales contract with the Perlite division of Mitsui Kinzoku Kougyou Co.
Our company has a sales contract with Taiheiyo Perlite Co.