Fireproof material Vermiculite for fireplace

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Packaging Detail:25kg/bag or upon customer's request
Delivery Detail:within 2 weeks


Fireproof material Vermiculite for fireplaceis made from expanded vermiculite and a dose of adhesive, made by hot or cold plat

1.wiat is Vermiculite Board 

Vermiculite board commonly known as insulation board or refractory plate is a new thermal insulation material, vermiculite stone is made from expanded vermiculite and a dose of adhesive, made by hot or cold plate. The board has the characteristics of heat preservation, heat insulation, fire prevention. This product can be used in fire door core, lining, fireplace wall materials.

2.  color:


golden yellow, crimson,silver white;


3.  size:


0.3-1,1-2, 1-3,1-4, 2-4,3-5,4-8mm, 20-40mesh,10-40mesh

4.  chemical composition:









5. specification


Sand content<4.5%<4.5%<7.8%<7.8%


specific volum>3.9>6>7.5>8


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Q:How to apply the quota of cement and vermiculite insulation layer?
Cement and expanded vermiculite, cement should be no less than 325, usually choose 425 ordinary Portland cement. The volume ratio of cement and expanded vermiculite is generally 1:5, which is economical and reasonable. Cement and sand aspect than the general 1:1. Site inspection method: mix the cement paste with fine powder and knead it by hand.
Q:Can coarse sand replace vermiculite?
Can not replace. Only the air permeable function of river sand, vermiculite, but in addition to this function, but also has strong cation exchange ability, can be applied in the adsorption of nitrogen and phosphorus and potassium fertilizer, avoid loss; and vermiculite itself also contains calcium and magnesium elements, can slowly release the nutrients.
Q:Where is the specialty of vermiculite?
Vermiculite in China Xinjiang, Russia, Zimbabwe, Australia, Kola Peninsula and South Africa have produced in the United states.
Q:What is vermiculite? What's the use of it?
Vermiculite is a kind of hydrate, which is massive and flaky. The interlayer water molecule is ignited at high temperature, and the volume is increased by 6-15 times. Rich in nitrogen, phosphorus, potassium, aluminum, iron, magnesium, silicate and other ingredients
Q:What can vermiculite do? What's the use?
Vermiculite is a natural, inorganic, non-toxic mineral that expands at high temperatures. It is a relatively rare mineral, belonging to silicates.
Q:What is the bulk density of asphalt vermiculite? Is it better to use asphalt, vermiculite or cement vermiculite when roofing?
Cement vermiculite, that is, cement and vermiculite mixed together, construction needs water at the scene, solidification formed after a light insulation material, usually used for roofing or ground insulation. The bulk density of cement vermiculite is about 600-800KG/m3.If only from the bulk density angle, the asphalt vermiculite certainly is better than the cement vermiculite
Q:How long is the service life of the special vermiculite for incubation? How often do you change it?
Incubation of vermiculite and horticultural vermiculite does not distinguish between silicate minerals. Its role in incubation and horticultural farming:1, for turtle eggs hatch, with mud and sand is more convenient, safer and more effective.2, for the transport of turtles, moisturizing buffer effect, can improve the survival rate.3, planting medium, one of the main materials, and peat, perlite and other mixed use.4. Sowing mulch.
Q:How can the new vermiculite be treated?
The vermiculite used in horticulture is expanded vermiculite. It is a kind of high-quality planting and planting. It has light and porous, good permeability, water absorption and certain water holding capacity. Can be used alone or in combination with other materials. It has different grain size and specifications, which are used for breeding, cutting and cultivation. General breeding, cutting can be used 1-3MM specifications, cultivation should use more than 2MM. Some gardeners think that the leech is easy to break, and the bigger size should be chosen for planting. Although the expanded vermiculite has been screened, it can be crushed and moved in transit. Therefore, the newly purchased vermiculite should be sorted and selected according to the use. The powdered vermiculite is tacky and has poor ventilation. It is recommended not to be discarded.
Q:There is vermiculite in the soil. Can you eat the vegetables grown?
There is vermiculite in the soil, and the vegetables can be eaten. Vermiculite is a natural, inorganic, non-toxic mineral that expands at high temperatures.
Q:Are expanded perlite and expanded vermiculite the same substance?What's the difference between them? What's the matter?
Vermiculite: Color: yellow, yellowish brown. Vermiculite after calcination, the volume can be expanded by several times, the volume expansion after the vermiculite called vermiculite.

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