The Water-Holding Capacity of Perlite

The natural size and unique structure of expanded perlite makes an ideal framework to hold water. Perlite holds water in one of three ways: in between individual grains, in channels leading to the cores ofthe grains and on the highly irregular surfaces of each particle (Fig. 1). The surface of perlite is made up of the outer convex shells of …

Perlite for Water Quality Management

The physical character of expanded perlite lends itself to a variety of special purposes—including various applications in the broad category of water quality management. For a detailed explanation of perlite expansion see information sheet: Why Perlite Works Storm Water Filtration Due to its high surface area, neutral pH and irregular, porous surface texture, expanded perlite is ideally suited for a variety …

Perlite and Sustainability

Sustainability Fact Sheet The Perlite Institute defines sustainability as the process of making decisions and taking actions to create economic, environmental and social conditions that generate value for the largest number of people, today and for generations to come. These decisions and actions are based on continuous reviews of: Protection of Resources and the Environment Perlite products help protect land, …