Union Perlite LLC produces under request and special research, specific grades of expanded Perlite for Industrial Applications, such as:
Why Perlite for Cryogenic Insulation:
Perlite is a 100% natural volcanic glass mineral, formed by the sudden cooling and solidification of volcanic ash, which traps crystalline water into its mass. Perlite’s most important natural property is the ability to expand when rapidly heated in Union Perlite LLC’s factory, at temperatures of 800°C to 1,200°C. The abrupt, controlled rise of temperature forms a white mass of minuscule glass bubbles. Perlite simultaneously melts and expands up to twenty times its original size into an extremely porous material which in turn results in superior thermal insulation and sound proofing properties, as well as extreme lightness (weighs 48-72 kg/m3). As a volcanic glass, Perlite is non-flammable and an exceptional fireproofing material.