Silica Powder Introduction
Silica powder has the advantages of excellent dielectric properties ,Low coefficient of thermal expansion, Complete chemical inertness and Neutral PH ,No chemical changes or induced reactions occur in either a catalyst or multicomponent.
ChangTong silica power co.Ltd??s high purity silica power is produced for the electronic materials area ,sealants, electronic potting compound area .Its dispersion leveling is excellent, contraction and Coefficient of thermal expansion are small, Acid alkali resistance ,solvent insulation,,mechanical performance, Mixed epoxy resin transparency are all good.
In total ,our excellent silica power can save cost and improve effectiveness for you .
Silica Powder Properties
Items Unit Typical testing value
Moisture % 0.08
L.O.T. % 0.1
SiO2 % ã??99.6
Fe2O3 % 0.013
Al2O3 % 0.24
K2O % 0.003
CaO % 0.02
Na2O % 0.004
Mohs hardness 7
Density g/cm3 2.65
PH 6.5-7.0
whiteness ã??90
Oil Absorption (g/100g) 16-30
Melting point (??) 1730
Silica Powder Application
Production Mesh witness Mons Performance Characteristics
Pure, 120 Mesh Silica Sand
Foundry and other industrial uses
Can be used for sand cores and greensand
Kiln-dried, excellent handling and high-temp performance
1.qualified products and materials,which can make perfect performance in your product line and save your raw materials and cost.
2. Reasonable and competitive price,which can save your cost and share more market.
3.Excellent service,which can help you save the materials cost and maximiz your output.
4.Reliable and timely transport,which can help you to avoid the the diversity and complexity of the international market.
5.With global professional suppliers and manufacturers a stable business relationships.
Silica is mainly used as a carrier of agricultural chemicals. Finely crushed silica powder is coated with agricultural chemicals and sold on the market for agricultural use. Silica itself has no effects; it merely serves as a carrier, and so can be dispersed without affecting the farmland, which makes it advantageous as a core material.
It's used as Fire-resistant product powder, Agricultural chemical carrier, Agricultural chemical carrier, Construction board
Silica sand, also known as quartz sand, is composed mainly of silicon dioxide (SiO). It is a naturally occurring mineral that is commonly used in a variety of industries due to its properties like durability, high melting point with low iron content , customization and resistance to weathering. Here are some common uses and facts about silica sand:
Common Uses:
Glass Manufacturing: Silica sand is a primary raw material in the production of glass, including container glass, flat glass, and specialty glass.
Construction: It is used in concrete, mortar, and other construction materials, as well as for sandblasting.
Foundries: Silica sand is used in foundry molds and cores for casting metal parts.
Water Filtration: The sand is used in water filtration systems because of its ability to trap contaminants.
Oil & Gas Industry: It is used in hydraulic fracturing (fracking) to prop open fractures in shale rock to extract oil and natural gas.
Sports & Leisure: Silica sand is used in products like sandboxes, golf course bunkers, and artificial turf.
Properties:
Hardness: Silica sand is known for its hardness, typically ranking around 7 on the Mohs scale, which makes it useful for many industrial applications.
Grain Size: The grain size of silica sand varies, with smaller grains being used for things like glass and larger grains being used for sandblasting or filtration.
Color: It can vary in color, from white to tan or even pink, depending on impurities and iron content.
Silica Sand * Silica Sand is a type of sand usually available in the form of quartz. It is a hard and crystalline form of mineral components. * Silica sand is the most abundant mineral with the purity more than 99.0%. It is the preferred choice of consumption for various industrial purposes.
Micro silica also known as fume, is an amorphous (non-crystalline) polymorph of silicon dioxide, silica. It is an ultrafine powder collected as a by-product of the silicon and ferrosilicon alloy production and consists of spherical particles with an average particle diameter of 150 mm. The main field of application is as pozzolanic for high performance concrete because of its extreme fineness and high silica.
Applications :
Silica is added to Portland cement concrete to improve its properties, in particular its compressive strength, bond strength, and abrasion resistance. These improvements stem from both the mechanical improvements resulting from addition of a very fine powder to the cement paste mix as well as from the pozzolanic reactions between the silica fume and free calcium hydroxide in the paste.
Advantages :
Addition of silica also reduces the permeability of concrete to chloride ions, which protects the reinforcing steel of concrete from corrosion, especially in chloride-rich environments such as coastal regions and those of humid continental roadways and runways (because of the use of deicing salts) and saltwater bridges.
Washed and dried silica sands suitable for Artificial grass installation.
No clay content and suitable for children's playground.
Finely graded sands suitable for Padel courts and Football courts.
Round to sub round natural shape to be skin-friendly.
High melting point silica sand due to purity.
Very low iron content to avoid casting reaction.
Properly graded sizes to ensure even metal surfaces.
Washed and cleaned sands to remove impurities.
Dried and no moisture sands
Graded washed sands for adhesive mixture.
Precast mixture
Facades fabrication
Fine graded sands for tile grout mixture.
Sands properly graded for roof water proofing and wall plastering
