Silver white expansive leech

Silver white expanded vermiculite has excellent properties such as heat insulation, frost resistance, antiseptic, fireproof, water absorption, sound absorption and so on. It is roasted for 0.5 to 1 minutes at 800~1000 C, and the volume can be increased by 8~15 times rapidly and up to 30 times as high as it is. After expansion, the specific gravity 50-200kg/m3 becomes silver white, forming loose expansive vermiculite.
Silver white expanded vermiculite is widely used in construction, metallurgy, chemical industry, light industry, machinery, electric power, petroleum, environmental protection and transportation and other departments. It is mainly used in construction, insulation, packing, agriculture, horticulture and so on.
Silver white expanded vermiculite is widely used in industrial production. The main models are: 1-3mm, 2-4mm, 10-20 mesh, 20-40 mesh, 40-60 mesh, 80-120 mesh, etc.
Silver white vermiculite is a hydrate which is massive and flaky. The interlayer water molecules were heated by high temperature and the volume increased by 6-15 times. Rich in nitrogen, phosphorus, potassium, aluminum, iron, magnesium, silicate and other ingredients. Vermiculite has higher layer charge number, so it has higher cation exchange capacity and stronger cation exchange adsorption capacity. The characteristics are: light weight, good water and fertilizer adsorption property, no decay, and can be used for 3-5 years.