- Overview
- Product Description
- Third Party Test Report
- Production Process
- Detailed Photos
- Packaging & Shipping
Basic Info.
Product Description
Lianyungang Chemsize International Trading Co., Ltd. is a leading manufacturer of high-quality fused silica sand and powder. We provide exceptional service and top-notch quality for all your resin filler needs.
Grade A Fused Silica sand & powder for advanced investment casting and epoxy molding. High purity, white silica powder for precise casting needs.
| 1. | Physical Properties | |||
| 1.1 | Composition | SiO2 | ||
| 1.2 | Structure | Amorphous | ||
| 1.3 | Colour | Transparent or white | ||
| 1.4 | Melting Temperature | approx.1750ºC | ||
| 1.5 | Specific Gravity | 2.21g/cm3 | ||
| 1.6 | Hardness | 7 Mohs | ||
| 1.7 | Thermal Expansion | 0.5*10-6 | ||
2. | Chemical Properties | |||
| Grade A | Grade B | Grade C | ||
| 2.1 | SiO2 | >99.9% | >99.85% | >99.7% |
| 2.2 | Al2O3 | <100ppm | <150ppm | <0.05% |
| The finer the power,the higher the Al2O3,as powder is produced by ball mill with Alumina ball. | ||||
| 2.3 | Fe2O3 | <30ppm for grain | <60ppm | <0.05% |
| 2.4 | CaO | <30ppm | <60ppm | <0.02% |
| 2.5 | Na2O | <30ppm | <60ppm | <0.02% |
| 2.6 | K2O | <30ppm | <60ppm | <0.02% |
Particle Size Distribution
Discover high-quality fused silica powder for resin filling and investment casting. Trust Lianyungang Chemsize for top-notch silica products.
| Standard | |||||||
| 10-20 | 30-50 | 50-100 | -120 | -200 | -325 | ||
| Mesh | Microns | ||||||
| +8 | 2360 | <2 | |||||
| +12 | 1700 | 6-25 | |||||
| +16 | 1180 | 33-50 | |||||
| +20 | 850 | 25-45 | <1 | ||||
| +30 | 600 | 13 | 25-40 | ||||
| +40 | 425 | 32-45 | |||||
| +50 | 300 | 15-30 | <13 | ||||
| +70 | 212 | 30-60 | |||||
| +80 | 180 | 0-11 | <1 | ||||
| +100 | 150 | 28-51 | <10 | <1 | |||
| +140 | 106 | 4-16 | 7-13 | <10 | |||
| +200 | 75 | <2 | 10-15 | <10 | <3 | ||
| +325 | 45 | 14-20 | 15-30 | 4-11 | |||
| Pan | <3 | <2 | <1 | 45-55 | 70-80 | 86-97 | |
Fused Silica Product Description
Fused Silica
Pan designates the percentage of fused silica passing the last reported screen for each size.
Special Features:
- Extremely low coefficient of thermal expansion
- Consistent chemistry
- Carefully controlled particle size distribution
Applications:
Used in industries such as thermal ceramic, refractory, investment casting, EMC, solar crucible, quartz marble, powder coating, etc.
Available Sizes:
- 0-1mm, 1-3mm, 3-5mm
- 0.2-0.5mm, 0.1-0.5mm
- -10mesh, 10-20mesh, 30-50mesh, 50-100mesh, -100mesh, -150mesh, -270mesh
- 30-60mesh, 60-120mesh, 40-70mesh, 70-140mesh, 100-200mesh
- 120F, 200mesh, 325mesh, 400mesh, 600mesh, 800mesh, 1250mesh, etc.
The particle size can be produced according to customer's special requirements.
Company name: Lianyungang Chemsize International Trading Co., Ltd.
Fused Silica Production Process
Fused Silica Production Process
Fused silica is high purity quartz sand that has been melted to form glass. Its high volume stability, low volumetric expansion, and high purity make fused silica a versatile material for refractory applications.
At Lianyungang Chemsize International Trading Co., Ltd., we carefully select high purity silica sand (SiO2 > 99%) from Donghai/Xinyi as our raw material. The silica sand is melted at high temperatures (2000-2300 ºC) to form amorphous silicon dioxide glassy ingots, which are then processed into fused silica lumps, sand, and powder according to customer requirements.
Discover our premium Fused Silica Powder, ideal for resin fillers and industrial applications. Trust Lianyungang Chemsize for top-quality silica products.
Our Fused Silica Powder is packaged in 25kg plastic woven bags and palletized for delivery. Trust Lianyungang Chemsize for top-quality industrial silica products.
Fused Silica Factory and Quality Control Pictures
Explore images of our advanced fused silica manufacturing facility and stringent quality control processes at Lianyungang Chemsize International Trading Co., Ltd.
Fused Silica Products
Fused Silica Making Process
Fused Silica is produced from high purity crystal silica through electric fusion at temperatures ranging from 1800-2000ºC. It is then engineered into various forms such as lumps, cullet, ingots, sand, grain, granular, and powder flour. These forms are ideal for manufacturing PV fused silica crucibles, thermal ceramics, refractories, EMC investment casting ceramic shells, and more.
Fused Silica Sand Appearance and Specifications:
- No unfused parts are allowed.
- No foreign materials such as strings, plastic lines, carbon, wood, metal, or other contaminants are permitted.
- Only conditional black dots are acceptable.
- Black spot diameter should not exceed 2mm.
- Total black dots quantity should be less than 10 per square meter.
FAQ:
Q1. Can I request a sample order for fused silica products?
A: Yes, we offer free samples shipped via ***/FEDEX/DHL. Mixed samples are also available.
Q2. What is the lead time for samples?
A: Samples are typically sent within 3-5 days.
Q3. Is there a minimum order quantity for fused silica sand?
A: No, but lower quantities may result in higher average costs.
Q4. How are the goods shipped and what is the delivery time?
A: We ship via DHL, UPS, FedEx, or *** with an average delivery time of 3-5 working days. Sea shipments may take 7-40 days depending on the distance.
Q5. What is the order process for fused silica powder products?
A:
- Provide your requirements or application details.
- We will offer a quote based on your needs or suggestions.
- Confirm samples and make a deposit for the formal order.
- We will proceed with production.
Q6. Can my logo be printed on the packages?
A: Yes, please inform us before production and confirm the design based on our sample.
Q7. How are faulty products handled?
A: Our products undergo strict quality control, with a defective rate of less than 0.2%. In case of any issues, we will replace the products and cover any losses incurred.
For further inquiries, please contact Lianyungang Chemsize International Trading Co., Ltd.
