珍珠岩用途及特性：

    ①、珍珠岩多孔透气性。  用于农林园艺、土壤改良,保墒保肥,无土栽培, 农药缓逝剂等；

    ②、珍珠岩吸附性。用于酒类、油类、药品、食品、污水等行制造行业过滤等；

    ③、珍珠岩稳定的物理化学特性。可作为橡胶、塑料、电缆、油漆、油墨、颜料,搪瓷,釉、涂料、树脂业等行业的填充剂；

    ④、珍珠岩制氧机、各种深冷、冷库工程的内壁；低沸点液体、气体的贮藏内壁和运输工具的内壁填充式保温隔热；

    ⑤、珍珠岩吸附性强，稳定的PH值6-7，是生产洗衣粉,洗手液等洗涤日化的主要原材料；

    ⑥、珍珠岩重量轻、环保、节能、保温、隔热、吸音、防火，是生产防火门、防火板、隔热板、珍珠岩吸音板、防盗门芯的材料 ；

    ⑦、珍珠岩大量用于工业窑炉及建筑物屋面找坡找平、保温隔热上。

Because of perlite's outstanding insulating characteristics and light weight, it is widely used as a loose-fill insulation in masonry construction. In this application, free-flowing perlite loose-fill masonry insulation is poured into the cavities of concrete block where it completely fills all cores, crevices, mortar areas and ear holes. In addition to providing thermal insulation, perlite enhances fire ratings, reduces noise transmission and it is rot, vermin and termite resistant. Perlite is also ideal for insulating low temperature and cryogenic vessels. When perlite is used as an aggregate in concrete, a lightweight, fire resistant, insulating concrete is produced that is ideal for roof decks and other applications. Perlite can also be used as an aggregate in Portland cement and gypsum plasters for exterior applications and for the fire protection of beams and columns. Other construction applications include under-floor insulation, chimney linings, paint texturing, gypsum boards, ceiling tiles, and roof insulation boards.

In horticultural applications, perlite is used throughout the world as a component of soilless growing mixes where it provides aeration and optimum moisture retention for superior plant growth. For rooting cuttings, *** perlite is used. Studies have shown that outstanding yields are achieved with perlite hydroponic systems. Other benefits of horticultural perlite are its neutral pH and the fact that it is sterile and weed-free. In addition, its light weight makes it ideal for use in container growing. Other horticultural applications for perlite are as a carrier for fertilizer, herbicides and pesticides and for pelletizing seed. Horticultural perlite is as useful to the home gardener as it is to the commercial grower. It is used with equal success in greenhouse growing, landscaping applications and in the home in house plants.

Industrial applications for perlite are the most diverse, ranging from high performance fillers for plastics to cements for petroleum, water and geothermal wells. Other applications include its use as a filter media for pharmaceuticals, food products, chemicals and water for municipal systems and swimming pools.

Additional applications include its use as an abrasive in soaps, cleaners, and polishes; and a variety of foundry applications utilizing perlite's insulating properties and high heat resistance. This same heat resistant property is taken advantage of when perlite is used in the manufacture of refractory bricks, mortars, and pipe insulation.