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Perlite Insulation

DARQ Perlite Insulation is a lightweight, highly effective thermal insulation material derived from naturally occurring siliceous volcanic rock. When rapidly heated, raw perlite expands up to 20 times its original volume, creating a highly porous structure that offers exceptional insulation performance across a range of industries.

What is Perlite?

Perlite is an amorphous volcanic glass with high water content, formed by the natural hydration of obsidian. Upon heating, it undergoes a physical expansion due to the vaporization of water trapped within the mineral, resulting in a lightweight, white, granular material used across industrial, construction, and horticultural sectors.

Key Features & Benefits

  • Lightweight & Porous Structure
    Expanded perlite is extremely light, making it ideal for insulation and lightweight construction materials.

  • Excellent Thermal Insulation
    Low thermal conductivity makes it suitable for high-temperature insulation applications, including cryogenics and refractories.

  • Non-Combustible & Inorganic
    Stable at high temperatures and resistant to fire, contributing to safer insulation solutions.

  • Moisture & Chemical Resistant
    Inert to most chemicals, rot-proof, and resistant to microbial growth and moisture damage.

  • Multi-Industry Applications
    Used in industrial insulation, lightweight plasters, ceiling tiles, refractory materials, firestop mortars, horticulture, and filtration systems.

  • Environmentally Responsible
    Though non-renewable, perlite’s efficiency and durability reduce energy use and maintenance costs over time.

Applications of Perlite Insulation

  • Industrial & Cryogenic Insulation

  • Used in tanks, vessels, and pipelines for maintaining ultra-low or high temperatures.

  • Construction

  • Added to plasters, concrete, ceiling panels, and fire-resistant materials for insulation and weight reduction.

  • Filtration

  • Acts as a natural and cost-effective alternative to diatomaceous earth in liquid filtration—commonly used in breweries, chemicals, and water purification.

  • Horticulture & Agriculture

  • Enhances soil aeration, drainage, and root development in potting mixes and hydroponic systems.

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