Perlite Italiana IDROPERALIT®

IDROPERALIT® is hydrophobic expanded perlite suitable for thermal insulation of floors and wall cavities in the presence of moisture.‎ Unlike other glassy rocks, pearlite has the ability to expand its volume up to 20 times its original volume when heated to high temperatures, close to its softening point.‎ The expansion is related to the presence of water that has remained confined in the closed porosity of the rock due to the sudden cooling as magma escapes.‎