HomeOur Products | Topco® Perlite Products
Perlite is a volcanic glass mineral formed from the lava of an active volcano. Topco® products are made by crushing perlite to an appropriate size, then quickly heating it to a temperature range of 800–1200°C, which causes it to expand into a popcorn-like substance with a volume as much as 20 times its initial size.
Expanded perlite has a multicellular structure, low density, yet demonstrates excellent moisture-absorbency and thermal insulation properties combined with both physical and chemical stability. For these reasons, it is well used in a number of industries and is suitable for use as a bulking agent in certain building materials, insulation material, absorbing agent, and in horticultural applications as a soil conditioner.
Perlite, once expanded, can also be milled and sized to produce perlite filter aids, which we sell under the Topco® brand. We mine perlite ore in Akita and Yamagata, and process the ore at our Tochigi plant.
