High-Quality Fused Silica Flour

• Certification: ISO
• Application: Rubber, Ceramic, Casting
• Type: Quartz
• Fused Silica Sand: 0-1mm,1-3mm,3-5mm,4-10mesh,10-20,20-50,50-100mesh
• Fused Silica Powder: -100,-120f,-150L,200f,270f,325mesh
• Fe2o3: <0.003%
• Model NO.: 10-20mesh, 20-50, 30-50, 50-100, 200mesh 325mesh
• Al2O3: <0.03%
• Amorphous Sio2: >99%
• Quartz Sio2: <0.1%
• Cristobalite Sio2: <0.1%
• Transport Package: Paper Bag, Plastic Bag, Jumbo Bag, Pallet
• Specification: SiO2>99.9%
• Trademark: Chemsize
• Origin: China Lianyungang
• HS Code: 32074000
• Production Capacity: 10000mt/Year

Product Description

We are Lianyungang Chemsize International Trading Co., Ltd., a leading manufacturer of high-quality fused silica sand and powder. Our products are ideal for various applications, including refractory, glassmaking, ceramics, and foundry. Trust us for superior quality and service!

Product Description

High-Quality Fused Silica Flour

Our Grade A Fused Silica sand&powder is perfect for various applications, including refractory, investment casting, glassmaking, ceramics, and more. Trust Lianyungang Chemsize International Trading Co., Ltd. for superior quality and performance.

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/cm^3
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: Our high-quality fused silica flour, also known as fused quartz grains, is a refined amorphous silicon oxide powder. It is ideal for refractory applications, investment casting, and glassmaking. We offer a range of sizes, from premium fused silica grit to fine quartz powder, to suit your specific needs. Trust us as your reliable supplier for top-grade fused 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

Fused Silica is a high-quality material with exceptional properties that make it ideal for various industrial applications. It is produced by carefully controlling the particle size distribution and ensuring a consistent chemistry. With its extremely low coefficient of thermal expansion, Fused Silica offers excellent thermal stability.

Special Features:

• Extremely low coefficient of thermal expansion


• Consistent chemistry


• Carefully controlled particle size distribution

Applications:

Fused Silica finds extensive use in industries such as thermal ceramics, refractories, investment casting, EMC, solar crucibles, quartz marbles, and powder coating. Its versatility and reliability make it a preferred choice for various applications.

Available Sizes:

Fused Silica is available in a wide range of sizes to suit different requirements:

• 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

Custom particle sizes can also be produced to meet specific requirements.

For more information, please contact Lianyungang Chemsize International Trading Co., Ltd.

Third Party Test Report

Production Process

Fused Silica Production Process

Fused Silica Production Process

Fused silica is a high purity quartz sand that has been melted to form glass. Its high volume stability, low volumetric expansion, and high purity make it a very useful and versatile material for refractory applications, such as aluminum launders or other highly cyclical applications.

At Lianyungang Chemsize International Trading Co., Ltd., we strictly choose high purity silica sand (SiO2 > 99%) from local Donghai/Xinyi as our raw material. The silica sand is melted at high temperatures (2000-2300 ºC) to form an amorphous silicon dioxide glassy ingot, which is then cooled. We further process the products into fused silica lumps, sand, and powder according to our customers' requirements.

Detailed Photos

Introducing our high-quality fused silica flour, perfect for a variety of applications including refractory, glassmaking, ceramics, and more. Our product is manufactured by Lianyungang Chemsize International Trading Co., Ltd., a trusted supplier in the industry. Choose our superior fused silica grits for exceptional results.

Packaging & Shipping

Product Name: High-Quality Fused Silica Flour

Company Name: Lianyungang Chemsize International Trading Co., Ltd.

Description: Our high-quality fused silica flour is a refined amorphous silicon oxide powder, perfect for various applications such as refractories, investment casting, glassmaking, ceramics, and more. Available in a 25kg net plastic woven bag, delivered on a pallet for easy handling and storage.

Fused Silica Factory and Quality Control Pictures

Explore our state-of-the-art fused silica factory and witness our rigorous quality control process. We are Lianyungang Chemsize International Trading Co., Ltd., a leading manufacturer and supplier of high-quality fused silica flour, quartz grains, and silica sand for various applications including refractory, investment casting, glassmaking, ceramics, and more.

Fused Silica Making Process

Fused Silica Making Process

Fused Silica is made of high purity crystal silica from China Donghai-Xinyi by electrically fusing (fusing temperature 1800-2000ºC) to amorphous Silicon dioxide. It is then specially engineered into lumps, cullet, ingots, sand, grain, granular, and powder flour form. These forms are designed for making PV fused silica crucible, thermal ceramic, refractory, EMC investment casting ceramic shell, and more.

Fused Silica Sand Appearance and Specifications:

• It is forbidden to contain any unfused parts.


• It is forbidden to have foreign material, such as string, plastic line, carbon or wooden material, metal, or other outside contaminants.


• All color dots are forbidden except conditional black dots.


• Black spot diameter larger than 2mm is not acceptable.


• Total black dots quantity should be less than 10 when opening the big bag, equal to or less than 10 dots per square meter.

FAQ:

Q1. Can I have a sample order for fused silica products?

A: Yes, we'd like to send samples free of charge by ***/FEDEX/DHL. Mixed samples are acceptable.

Q2. What about the lead time?

A: It is 3-5 days for sending samples. It is usually within 15 days to deliver orders for quantities within 100mt.

Q3. Do you have any MOQ limit for fused silica sand order?

A: No. But the less the average cost higher.

Q4. How do you ship the goods and how long does it take to arrive?

A: We usually ship by DHL, UPS, FedEx, or ***. It usually takes 3-5 working days to arrive. It depends on the distance by sea, which can take 7-40 days.

Q5. How to process an order for fused silica powder products?

A:

1. Let us know your requirements or application.


2. We quote according to your requirements or our suggestions.


3. Customer confirms the samples and pays a deposit for the formal order.


4. We arrange the production.

Q6. Is it OK to print my logo on packages?

A: Yes. Please inform us formally before our production and confirm the design based on our sample.

Q7: How to deal with the faulty?

A: Firstly, our products are produced in a strict quality control system, and the defective rate will be less than 0.2%. Secondly, if it happens, we shall arrange to send new products to you and pay for all your losses.

Any questions, kindly contact us please!

Company name: Lianyungang Chemsize International Trading Co., Ltd.