polished surface decorative vermiculite fireproof board for fireplace

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Packaging & Delivery

Packaging Detail:in bulk or in pallet
Delivery Detail:20days after deposit

Specifications

magnesium oxide board 
CE certificate 
A grade non combustible(GB8624) 
fireproof,waterproof,soundproof, 
green board

Products data

 

Chemical compositionMagnesium oxide,magnesium chlo-ride,saw dust,perlite,glass fiber cloth,non-woven cloth
MaterialModified magnesia cement




Fireproofing characteristicA grade non combustible(GB8624)



Density0.8-1.1g/cm3





Intensity of bending resistance when dry18Mpa(GB/T7019-1997)





Intensity of bending resistance when  moisture-saturated condition22Mpa(GB/T7019-1997)





The rate of deformation when pick up the moisture0.26%(GA160-1997)





The shrinking rate when heated1.0%(GA160-1997)





Water permeabilitythere is no drop of water to emerge in the back(CNS13778)


Impact resistanceNo crack,strip and run through(CNS13778)



Thermal resistance1.14m2k/w(GB/T 13475-92)




Sound insulation≥44db(GBJ121-88)





Colorwhite or grey





Security100% does not include the asbestos,formaldehyde,and benzene


RadioactivityNot limited by the scope of application(GB6566-2001)


 


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Q:Why does vermiculite have gold or silver on its surface?
The reasons for the surface of vermiculite are gold or silver: the surface color of vermiculite is false color, and the selective absorption of minerals by visible light is the main reason for the color of objects.
Q:How can old vermiculite be sterilized?
Vermiculite comes out after being processed at a high temperature. It can also be said that it has been sterilized at high temperature during production. Vermiculite is very resistant to high temperature and can be sterilized at high temperature
Q:What kind of material can be used instead of vermiculite and perlite in flower cutting?
Peat can retain moisture while peat contains a large amount of humic acids that promote plant rooting. To choose half of humification and rougher peat with coarse sand and large particles of perlite as well. The prepared matrix is conducive to ventilation and drainage, but also conducive to the formation of root.
Q:Can vermiculite be used for making flowers?
Vermiculite is a natural, non-toxic mineral that expands at high temperatures. It is a relatively rare mineral, belonging to silicates. Its crystalline structure is monoclinic, and it looks like mica from its appearance. Vermiculite is produced by hydration of certain granite. It is commonly produced with asbestos.
Q:What kind of stone is vermiculite?
Vermiculite is a clay mineral with montmorillonite similar, layered silicate. Generally composed of biotite by hydrothermal alteration and weathering. It sometimes appears to be coarse biotite like (this is the illusion of biotite vermiculite)
Q:Baht, activated carbon, vermiculite, these three often harmful to the body?
Vermiculite, a mineral that is mainly silicate, is inert in the normal environment. It's not harmful to peopleWe must think about the types of rock salt.Water absorbent resin will be partially oxidized in the air for a long time, but it will not be harmful to human health.
Q:Iron powder. Water. Activated carbon. Vermiculite. Mineral water absorbent resin. After contact with air to human body harmful?
Salt will see those types.Water absorbent resin will be partially oxidized in the air for a long time, but it will not be harmful to people's health
Q:Can vermiculite take the place of soil? Is it okay to plant seeds directly in vermiculite?
Vermiculite is a kind of thermal insulation material, garden cultivation can play the role of heat preservation and water conservation, but the plants contain little trace elements, it can not replace the soil. But seeds can be planted directly in just inside.
Q:Quality grade classification of vermiculite
Grade four: the micro hydration of vermiculite, have similar appearance and mica, with without hydration of mica flakes peeling easy split, color is dark green or nearly black, a shiny glass, vermiculite after calcining the volume expansion of 3 times.
Q:Are expanded perlite and expanded vermiculite the same substance?What's the difference between them? What's the matter?
From the first color: perlite is white, similar to the bubble, very light. Vermiculite yellow, relatively small particles, a bit like a worm.These are used in the tunnel fire retardant coating inside, is the raw material of this kind of product, play the role of thermal insulation, also used in vegetable greenhouses inside

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