Perlite, a naturally occurring volcanic glass, has emerged as a sustainable and high - performance material across industries. This article explores its unique properties, applications, and why it’s a preferred choice for modern solutions.
What is Perlite?
Perlite is formed from volcanic rock (aluminosilicate) that expands into lightweight, porous granules when heated to 870–1,090°C. Its cellular structure makes it ideal for insulation, moisture retention, and filtration.
Low Thermal Conductivity: Making it an excellent insulator.
Lightweight: Density of 60–150 kg/m³, reducing structural load.
Fire Resistance: Non - combustible.
pH Neutral: Safe for agricultural and horticultural applications.
Absorbent: Retains moisture while improving soil aeration.
Building Insulation: Used in walls, roofs, and floors for energy efficiency.
Fireproofing: Mixed with cement for fire - resistant coatings.
Soundproofing: Fills gaps in partitions to reduce noise transmission.
Soil Amendment: Improves drainage, aeration, and water retention in potting mixes.
Hydroponics: Supports root systems in soilless cultivation.
Seed Germination: Provides a sterile, lightweight medium for seedlings.
Filtration: Purifies liquids (e.g., wine, pharmaceuticals) and gases.
Packaging: Cushions delicate items due to its shock - absorbing properties.
Foundry Casting: Serves as a mold material in metal casting.
