What is vermiculite board?

2025-03-07 17:43:41

Insulation material with expanded vermiculite as the main material

Vermiculite board, commonly known as insulation board or fireproof board, is a new type of insulation material. Vermiculite board is made of expanded vermiculite and a certain amount of adhesive, and is made by hot pressing or cold pressing.

This board has the characteristics of insulation, heat insulation, and fire prevention. This product can be used in fireproof door cores, fireplace linings, and wall materials.

Vermiculite board is a new type of inorganic material. It uses expanded vermiculite as the main raw material, mixed with a certain proportion of inorganic adhesives, and processed through a series of processes to produce a board with high temperature resistance, fire prevention, green environmental protection, insulation, sound insulation, and no harmful substances. After high temperature heating to 1200℃, it does not produce gases that are harmful to human health, and the combustion performance reaches Class A.

It is still in its embryonic stage in my country. The country mainly exports vermiculite raw materials, and the finished products are rarely used in China. However, in recent years, the domestic market demand has gradually increased. It has been widely used in developed countries such as the United States, the United Kingdom, and France since the 1980s.

Non-flammable, non-melting, and high temperature resistant. Since vermiculite board uses expanded vermiculite as the main raw material, inorganic materials do not contain carbon and do not burn. Its melting point is 1370~1400℃, and the maximum operating temperature is 1200℃.

Long-lasting thermal insulation.

Non-toxic, smokeless, green and environmentally friendly, inorganic materials do not contain carbon and sulfur elements, and will not produce CO2 and SO2, which affect the atmosphere, and will not cause harm to the human body.

Excellent impact resistance, vermiculite board is made of specially developed fireproof glue and expanded vermiculite, so it has high strength and toughness.

Good dimensional stability and weather resistance.

Excellent resistance to mildew and insect infestation.

Can be sawed, nailed, planed, and drilled, easy to install and construct.

Good sound insulation.

Conventional 2400*1200*15-60mm

Maximum 2500*1220*100

Density 400-600KG/M3

Vermiculite boardVermiculite board is widely used in foreign countries in the fields of construction, shipbuilding, metallurgy, electricity, aerospace, etc., specifically used in: 1. Fire door core; 2. High-end kitchenware and furniture; 3. Hull plate; 4. Fire passage, ventilation system; 5. Commercial buildings, banks, libraries, hotels, restaurants, entertainment venues, high-end residences, ordinary residences, etc.; 6. Kiln insulation; 7. Fireplace insulation; 8. Industrial insulation materials.

Vermiculite board does not contain asbestos, so this natural, green and environmentally friendly fireproof material has been widely used in Australia, the United States, Europe and other countries in the 1960s and 1970s to fill fire doors, that is, vermiculite fire door core.

The advantages of fire doors with vermiculite board as the door core are as follows:

1. Flame retardant, heat insulation, and high temperature resistance. After a long period of high-temperature roasting, it can still maintain its integrity.

2. Environmental protection. Because it is composed of inorganic materials, it does not contain toxic substances such as formaldehyde and benzene. Even at high temperatures, it does not release toxic and harmful gases.

3. Vermiculite board is a Lightweight Fireproof Material. The weight of the fire door is light, so the load of the hinge is low, which reduces the wear and tear that may be caused during use, extends the service life of the fire door, and saves maintenance costs.

4. The surface of the wooden fire door made of vermiculite board is smoother and does not bubble.

5. Easy to install. The vermiculite fire door can be trimmed to the required length during installation according to the manufacturer's process design, which is easy to install.

6. Save factory costs.

Using vermiculite board as the door core saves many task processes in the traditional process during the production process, and also saves the stacking space of various materials, saving corresponding costs in labor, process, site, etc.

7. The vermiculite fire door has a high fire rating. The fireproof doors made of our door core board have been tested abroad and the maximum fire resistance limit time is 4 hours.

8. Other applications Vermiculite board can be used in furniture, fire walls, ceilings, fire passages, steel beam coverings, pipeline coverings, lining boards in real fire fireplaces, wall partitions, etc.