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
Fused silica Introduction
 Fused silica is made of high purity crystal silica by electrically fusing (fusing temperature 1800-2000â??) to amorphous Silicon dioxide , then it was classed to different grades by manual and then specially engineered to granular and powder form. Because fused silica has a very low thermal conductivity and excellent thermal shock resistance, it is used in lots of fields of investment casting,refractory,ceramic,epoxy modling compound,fusion bounded epoxy.
Fused Silica Properties
  Investment Casting Grade
2.1 SiO2 >99.90%
2.2 Al2O3
Cristobalite silica flour production introduction
Cristobalite flour is melted under the high temperature, Then the silica will be much more pure and steady. The color is much white. After special grinding and separating process,the product has find particles and controllable particle size distribution. It is widely used in the fields of high-tech electronic materials, high grade paints, silicone rubber, special ceramic, etc.
Cristobalite Packaging & Shipping
1.Packing : 25kg/bag ,then 1000kg/bag . 20-25mt/1x20container .
we can pack it according your need too.
2. Delivery : It is not dangerous goods , can be delivered just as ordinary goods .
Company Introduction
Lianyungang changtong silica powder co.ltd established in 2009. We have been experience in producing and sales for almost 10 years .We are specializing in production of silica powder, silica sand, fused silica, cristobalite.We can accept you to customize the different specifications according to your own needs .
We have sold our products to America,Brazil ,India ,Dubai ,Thailand ,Turkey and so on. We appreciate the opportunity to meet your silica need.
Please kindly contact us right now if you're looking for a professional manufacture.
Cristobalite FAQ
1. Q : Does your company offer free sample ?
A : Yes ,we can offer free sample within 25kgs.
2. Q : Does your company accept any factory inspection ?
A : Yes ,we accept customer inspection and third party inspection .
3. Q : Can you provide technical support ?
A :yes ,we can provide on line technical assistance or on site technical guidance .
4. Q :whats your MOQ ?
A:I Ton , (sample can be as minimum as possible )
5. Q : can you offer free sample ?
A : yes ,we can provide sample free for your testing .
6. Q : whats your delivery time ?
A:within 15 days after receiving deposit .
7. Q : whats your export port ?
A: lianyungang , nanjing ,qingdao ,shanghai ,tianjin port .
Silica Sand Introduction
Quartz sand is quartz stone processed by the crushing of quartz particles. Quartz stone is a non-metallic mineral, a hard, wearable, chemical properties and stability of silicate minerals, the main mineral composition is SiO2. Quartz sand is an important industrial mineral raw materials, non-chemical dangerous goods, widely used in glass, casting, ceramics and fireproof materials, smelting ferrosilicon, metallurgical flux, metallurgy, construction, chemical, plastics, rubber, abrasive, filter and other industries.
Silica Sand Properties
Items Unit Typical testing value
L.O.T. % 0.1
SiO2 % ã??99.5
Fe2O3 % 0.015
Al2O3 % 0.1
CaO % 0.03
TiO2 % 0.004
MgO % 0.002
K2O % 0.02
Na2O % 0.005
Mohs hardness 7
Density g/cm3 2.65
PH 6.5-7.0
Melting point (??) 1730
2. Delivery : It is not dangerous goods , can be delivered just as ordinary goods .
Company Introduction
Lianyungang changtong silica powder co.ltd established in 2009. We have been experience in producing and sales for almost 10 years .We are specializing in production of silica powder, silica sand, fused silica, cristobalite.We can accept you to customize the different specifications according to your own needs .
We have sold our products to America,Brazil ,India ,Dubai ,Thailand ,Turkey and so on. We appreciate the opportunity to meet your silica need.
Please kindly contact us right now if you're looking for a professional manufacture.
Silica Sand FAQ
1. Q : Does your company offer free sample ?
A : Yes ,we can offer free sample within 25kgs.
2. Q : Does your company accept any factory inspection ?
A : Yes ,we accept customer inspection and third party inspection .
3. Q : Can you provide technical support ?
A :yes ,we can provide on line technical assistance or on site technical guidance .
4. Q :what??s your MOQ ?
A:I Ton , (sample can be as minimum as possible )
5. Q : can you offer free sample ?
A : yes ,we can provide sample free for your testing .
6. Q : what??s your delivery time ?
A:within 15 days after receiving deposit .
7. Q : what??s your export port ?
Microsilica, also known as silica fume, is an ultrafine powder with high SiO2 content and high pozzolanic activity. It is used as a property-enhancing material in many areas, such as concrete construction, refractory, chemical fertilizer.
ACC has been supplying micro silica since 2005. Our densified , undensified, and white microsilica products are with minimum SiO2 contents ranging from 85% to 98%, which have been used in many famous projects around the world. ACC can also provide micro-silica powder with higher SiO2 contents and specifications according to the requirements of customers.
ACC microsilica complies with ASTM C 1240 and EN13263:2005 standards and has been recognized by SGS, Exova, and other famous test authorities and ENR enterprises. The recycle, densifying and filling processes are automatically integrated in a closed environment without any mixture or impurities. We can fix clientsâ?? orders in a stable production base so as to ensure the consistency and stability of quality.
313 Silica Sand Suppliers
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Microsilica, also known as silica fume, is an ultrafine powder with high SiO2 content and high pozzolanic activity. It is used as a property-enhancing material in many areas, such as concrete construction, refractory, chemical fertilizer.
ACC has been supplying micro silica since 2005. Our densified , undensified, and white microsilica products are with minimum SiO2 contents ranging from 85% to 98%, which have been used in many famous projects around the world. ACC can also provide micro-silica powder with higher SiO2 contents and specifications according to the requirements of customers.
ACC microsilica complies with ASTM C 1240 and EN13263:2005 standards and has been recognized by SGS, Exova, and other famous test authorities and ENR enterprises. The recycle, densifying and filling processes are automatically integrated in a closed environment without any mixture or impurities. We can fix clientsâ?? orders in a stable production base so as to ensure the consistency and stability of quality.
Silica fume, also known as microsilica, is a byproduct of the production of silicon and ferrosilicon alloys. It is an ultrafine powder consisting of spherical particles, typically about 100 times smaller than the average cement particle. This fine powder is rich in silicon dioxide (SiO) and is highly reactive when mixed with cement, making it a valuable additive in construction materials.
Features of Silica fume:
1, With good insulation: due to the high purity, low impurity content, stable performance, excellent electrical insulation performance, silica fume makes the cured product has good insulation performance and arc resistance performance.
2. It can reduce the peak exothermic temperature of the curing reaction of epoxy resin, reduce the linear expansion coefficient and shrinkage rate of the cured substance.
3, Corrosion resistance: silicon powder is not easy to react with other substances, and most of the acid, alkali can not react chemically.Its particles evenly covered on the surface of the object, with strong corrosion resistance.
Good day.
We can supply densified/undensified microsilica/silica fume product
are with minimum SiO2 contents from 85% to 97%.
Packing:1000kg/jumbo bag or as customer required.
Attached our company profile and 92D microsilica Datasheets for your reference.
while when you are in demand of microsilica, welcome to contact.
