Overview
Product Description
Third Party Test Report
Production Process
Detailed Photos
Packaging & Shipping

Basic Info.

Model NO.

0-1mm, 1-3mm, 3-5mm, 5-8mm, 200mesh, 325mesh

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

Lianyungang Chemsize International Trading Co., Ltd. offers high-quality ultra-fine silica sand and powder for various industrial applications. Trust us for superior service and top-notch quality!

Ultra-Fine Silica Sand Manufacturers for Foundry Needs

Discover Grade A Fused Silica sand & powder from Lianyungang Chemsize International Trading Co., Ltd. Ideal for various applications including foundry 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%
2.2	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-purity Ultra-Fine Silica Sand for various industrial applications. From foundry to construction, our silica sand meets diverse needs with precision.

		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.

Fused Silica Special Feature:

Fused Silica features an extremely low coefficient of thermal expansion, consistent chemistry, and carefully controlled particle size distribution.

Fused Silica Applications:

Fused Silica is used in the industries of 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, 0.212-0.425mm, 0.125-0.212mm, -0.044mm, -0.045mm, 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. Particle size can be produced as per customer's special requirement.

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

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 fused silica a versatile material for refractory applications, such as aluminum launders.

At Lianyungang Chemsize International Trading Co., Ltd., we carefully select 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 amorphous silicon dioxide glassy ingots, which are then processed into fused silica lumps, sand, and powder based on customer requirements.

Discover high-quality fused silica sand for various industrial applications from Lianyungang Chemsize International Trading Co., Ltd. Perfect for foundry needs, our ultra-fine silica sand ensures exceptional clarity in your projects.

Discover our Fused Silica Package: 25kg Net Plastic Woven Bags on Pallets. Perfect for Foundry Needs. High purity and quality from Lianyungang Chemsize International Trading Co., Ltd.

Lianyungang Chemsize International Trading Co., Ltd. offers high-quality ultra-fine silica sand for various industrial applications, including foundry needs. Our fused silica sand ensures top-notch quality and performance.

Fused Silica Making Process

Fused Silica is produced using high purity crystal silica from China Donghai-Xinyi. It is electrically fused at temperatures ranging from 1800-2000ºC to create amorphous Silicon dioxide. The material is then specially engineered into various forms such as lumps, cullet, ingots, sand, grain, granular, and powder flour. These forms are designed for making PV fused silica crucibles, thermal ceramics, refractories, EMC investment casting ceramic shells, and more.

Fused Silica Sand Appearance and Specifications:

Must not contain any unfused parts.

Should not have foreign materials like string, plastic, carbon, wood, metal, or other contaminants.

Only conditional black dots are allowed; all other color dots are forbidden.

Black spot diameter should not exceed 2mm.

Total black dots quantity should be less than 10 per square meter when opening the big bag.

For any inquiries, please contact Lianyungang Chemsize International Trading Co., Ltd.

Chemsize Fused Silica

Lianyungang Chemsize International Trading Co., Ltd. is a leading manufacturer of Fused Silica grains and powders. Our Fused Silica materials are used in industries such as Refractory, Investment Casting, Technical Ceramic, and EMC filler, with excellent feedback from our customers.

Our Fused Silica has a high fusion ratio (Amorphous SiO2 up to 99.9% min), low iron content (30ppm max), and low impurities, resulting in materials with very low coefficient of thermal expansion, high resistance to thermal shock, and low electrical conductivity. We utilize a special blending and sieving process, along with a Malvern Laser Particle Size Analyzer, to ensure the supply of the most suitable Fused Silica materials to our customers.

Our unique electric-arc fusion technique produces Fused Silica of the purest quality in China, with over 99.9% SiO2 content. It has a low coefficient of thermal expansion, high resistance to thermal shock, and excellent size integrity, meeting ISO-certified standards. Chemsize Fused Silica is inert, chemically stable, and has extremely low conductivity.

Our Fused Silica products are engineered grains and powders designed for foundry, refractory, investment casting, and other specialized applications. They offer extremely low thermal expansion coefficient, consistent chemistry, and carefully controlled particle size distribution.

Applications of Fused Silica include making crucibles for solar cells in the photo-voltaic industry, rollers and tools in the glass industry, technical ceramics, ceramic slurry in investment casting, and more.

Our standard packaging includes 25kg bags, 48 bags per pallet, or jumbo bags with a net weight of 1200kgs. We also offer tailored shipments for customers requiring bulk bags of varying sizes.

Explore our range of Fused Silica products for various applications, including investment casting, refractory materials, EMC fillers, powder coating, and more.

Introducing Chemsize Fused Silica

Chemsize Fused Silica is a leading supplier of raw materials and machinery for investment casting, with 30 years of experience in the industry. Our Fused Silica flour offers numerous advantages over traditional Zircon Flour:

Better particle shape for improved primary slurry quality

Reduced material consumption due to lower density

Increased permeability and porosity for better shell quality

Easier knock-out and shell removal process

Consistent and sustainable sourcing from the world's largest Fused Silica production area

Competitive pricing at US0.56/kg FOB LIANYUNGANG PORT

Applications:

Our Fused Silica is ideal for use in induction furnace lining ramming material, offering high purity and excellent performance in various applications.