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Top Suppliers Vermiculite Use In Soil - High Quality Expanded Vermiculite – Vermiculite Flake – Wancheng Detail:

Physical and chemical properties of vermiculite

The chemical composition of vermiculite

Composition SiO2 Al2O3 Fe2O3 FeO MgO TiO2 K2O H2O
Content ( % 37-45 8-18 3-10 1-3 10-22 1-1.5 2-8 10-21

Physical and chemical properties

Specific gravityg / cm3 Expanded vermiculite bulk weight kg / m3 PH value Hardness Refractory melting point Refractive index
2.2-2.6 80-200 6.28 1.3-1.6 1300-1370 1.52-1.65

Uses of vermiculite

Used for thermal insulation

Expanded vermiculite has the characteristics of being porous, light weight and high melting point, and is most suitable for high temperature insulation materials ( below 1000 ℃) and fireproof insulation materials. The fifteen-centimeter-thick cement vermiculite board was burned at 1000 ℃ for 4-5 hours, and the temperature on the back was only about 40 ℃. The seven-centimeter thick vermiculite slab was burned at a high temperature of 3000 ℃ for five minutes by a flame-welded flame net . The front side melted, and the back was still not warm by hand. So it surpasses all insulation materials. Such as asbestos and diatomite products.
Vermiculite can be used as thermal insulation materials in high-temperature facilities, such as thermal insulation bricks, thermal insulation boards and thermal insulation caps in the smelting industry. Any equipment that requires thermal insulation can be insulated with vermiculite powder, cement vermiculite products (vermiculite bricks, vermiculite plates, vermiculite pipes, etc.) or asphalt vermiculite products. Such as walls, roofs, cold storages, boilers, steam pipes, liquid pipes, water towers, converter furnaces, heat exchangers, dangerous goods storage, etc.

Used for sound insulation layer

Vermiculite expanded due to the formation of fine air gap layer, forming a porous insulation material, when the frequency of 2000C / S , vermiculite thickness 5mm when the sound absorption rate of 63% , a thickness of vermiculite 6mm when the sound absorbing rate of 84% , vermiculite The sound absorption rate is 90% when the stone thickness is 8mm .

For radiation protection facilities

Vermiculite can absorb radiation. The vermiculite plate installed in the laboratory can replace the high-priced lead plate to absorb scattered radiation by 90% . The thickness of vermiculite is 65mm, which is equivalent to 1mm lead plate.

For plant cultivation

Because vermiculite powder has good water absorption, air permeability, adsorption, looseness, non hardening and other properties, and it is sterile and non-toxic after high temperature roasting, which is conducive to the rooting and growth of plants. It can be used for planting, seedling raising and cutting of precious flowers and trees, vegetables, fruit trees and grapes, as well as for making flower fertilizer and nutrient soil.

Manufacturing for chemical coatings

Vermiculite having a corrosion resistance to acid, of 5% or less of sulfuric acid, hydrochloric acid, acetic acid, 5% aqueous ammonia, sodium carbonate, anti-corrosive effect. Because of its light weight, looseness, smoothness, large diameter-to-thickness ratio, strong adhesion, and high temperature resistance, it can also be used as a filler in the manufacture of paints (fireproof paints, anti-irritant paints, waterproof paints) to prevent paint Settling and sending product performance.

For friction materials

Expanded vermiculite has sheet-like and thermal insulation properties, can be used for friction materials and braking materials, and has excellent performance, non-toxic and harmless, and is a new environmentally friendly material for environmental pollution.


Product detail pictures:

Top Suppliers Vermiculite Use In Soil - High Quality Expanded Vermiculite – Vermiculite Flake  – Wancheng detail pictures

Top Suppliers Vermiculite Use In Soil - High Quality Expanded Vermiculite – Vermiculite Flake  – Wancheng detail pictures

Top Suppliers Vermiculite Use In Soil - High Quality Expanded Vermiculite – Vermiculite Flake  – Wancheng detail pictures

Top Suppliers Vermiculite Use In Soil - High Quality Expanded Vermiculite – Vermiculite Flake  – Wancheng detail pictures

Top Suppliers Vermiculite Use In Soil - High Quality Expanded Vermiculite – Vermiculite Flake  – Wancheng detail pictures


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It is a good way to improve our products and service. Our mission is to develop creative products to customers with a good experience for Top Suppliers Vermiculite Use In Soil - High Quality Expanded Vermiculite – Vermiculite Flake – Wancheng , The product will supply to all over the world, such as: Belize, Philippines, Somalia, Our products have mainly exported to south-east Asia Euro-America, and sales to all of our country. And depending on excellent quality, reasonable price, best service, we have got good feedback from customers overseas. You are welcomed to join us for more possibilities and benefits. We welcome customers, business associations and friends from all parts of the world to contact us and seek cooperation for mutual benefits.
  • We have been cooperated with this company for many years, the company always ensure timely delivery ,good quality and correct number, we are good partners.
    5 Stars By Dora from Finland - 2018.06.05 13:10
    Problems can be quickly and effectively resolved, it is worth to be trust and working together.
    5 Stars By Rita from Rome - 2017.08.15 12:36
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