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Lightweight Expanded Perlite Insulation for Industrial Use - China Suppliers & Factory

Perlite is a unique amorphous volcanic glass that originates from the hydration of obsidian and naturally contains a high water content. This industrial mineral is particularly valued for its remarkable ability to expand significantly when subjected to high temperatures, making it a highly sought-after commercial product, When heated to temperatures between 850 and 900 °C (1,560 to 1,650 °F), perlite expands to 7–16 times its original volume due to the vaporization of water trapped within its structure. The result is a lightweight, brilliant white material characterized by the reflectivity of the contained bubbles. Raw perlite has a bulk density of approximately 1100 kg/m³ (1.1 g/cm³), while typical expanded perlite boasts a much lower bulk density of about 30–150 kg/m³ (0.03–0.150 g/cm³), As leading Suppliers and Factory of perlite in China, we are committed to providing high-quality expanded and raw perlite products that meet the diverse needs of our clients across various industries

    Specification

    Commodity Expanded Perlite
    Size 150mesh, 100mesh, 40-60mesh, 1-3mm, 2-5mm, 3-6mm, 4-8mm
    Loose density (g/l) 50-170
    Specific gravity (g/l) 60-260
    PH 6-9
    LOI 3%Max.

    Typical analysis

    SiO2 70–75%
    Al2O3 12–15%
    Na2O 3–4%
    K2O 3–5%
    Fe2O3 0.5-2%
    MgO 0.2–0.7%
    CaO 0.5–1.5%

    Use

    • In the construction and manufacturing fields, it is used in lightweight plasters, concrete and mortar (masonry), insulation and ceiling tiles. It may also be used to build composite materials that are sandwich-structured or to create syntactic foam.
    • In horticulture, perlite can be used as a soil amendment or alone as a medium for hydroponics or for starting cuttings. When used as an amendment it has high permeability / low water retention and helps prevent soil compaction.
    • Perlite is an excellent filtration aid and used as an alternative to diatomaceous earth. The popularity of perlite usage as a filter medium is growing considerably worldwide. Perlite filters are fairly commonplace in filtering beer before it is bottled.
    • Perlite is also used in foundries, cryogenic insulation.
    • Perlite is a useful additive to gardens and hydroponic setups.
    • Perlite has a neutral PH level.
    • It contains no toxic chemicals and is made from naturally occurring compounds found in soil.
    • Perlite is directly comparable to another mineral additive called Vermiculite. Both have overlapping functions and help with soil aeration and seed starting.

    Packaging

    Packing: 100L, 1000L, 1500L bags.
    Quantity: 25-28M3/20’GP, 68-73M3/40’HQ

    Frequently Asked Questions

    What are the available sizes of Expanded Perlite?
    We offer Expanded Perlite in various sizes to suit different applications, including 150mesh, 100mesh, 40-60mesh, 1-3mm, 2-5mm, 3-6mm, and 4-8mm.
    What is the typical chemical composition of your Perlite?
    Our perlite consists primarily of Silicon Dioxide (SiO2: 70–75%) and Aluminum Oxide (Al2O3: 12–15%), along with trace amounts of Na2O, K2O, Fe2O3, MgO, and CaO.
    How is Expanded Perlite used in construction?
    In the construction industry, it is widely utilized for lightweight concrete, mortar, plasters, ceiling tiles, insulation, and for creating syntactic foam or sandwich-structured composite materials.
    Why is Perlite beneficial for horticultural applications?
    Perlite has a neutral pH level (6-9) and contains no toxic chemicals. It is used as a soil amendment or hydroponic medium to improve soil aeration, provide high permeability, and prevent soil compaction.
    Can Expanded Perlite be used for filtration?
    Yes, Expanded Perlite serves as an excellent filtration aid and is a popular, growing alternative to diatomaceous earth worldwide. It is commonly used in industrial filtration processes, such as filtering beer prior to bottling.
    What are the standard packaging and loading capacities?
    It is packaged in 100L, 1000L, and 1500L bags. The loading quantity is approximately 25-28M3 per 20’GP container and 68-73M3 per 40’HQ container.