Versatile Fused Silica Powder for Different Meshes

• Certification: ISO
• Application: Rubber, Ceramic, Casting
• 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%
• Al2O3: <0.03%
• 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 top-quality fused silica powder in various mesh sizes. Explore our versatile silica products for superior performance.

Product Description

Discover our Grade A Fused Silica sand & powder with various mesh sizes for versatile applications. Made by Lianyungang Chemsize International Trading Co., Ltd.

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%

Discover our premium Fused Silica Powder in various mesh sizes for versatile applications. High purity and top-grade quality for advanced silica technology.

		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:

• Thermal ceramic industry


• Refractory industry


• Investment casting industry


• EMC industry


• Solar crucible industry


• Quartz marble industry


• Powder coating industry

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...

The particle size can be produced as per customer's special requirement.

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

Third Party Test Report

Production Process

Fused Silica Production Process

High Purity Fused Silica by Lianyungang Chemsize International Trading Co., Ltd.

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 an incredibly useful and 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 sources in 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 processed into fused silica lump, sand, and powder according to our customers' specific requirements.

Detailed Photos

Discover our top-grade Fused Silica Powder for various mesh sizes, offering crystal-clear pictures. Perfect for versatile applications.

Packaging & Shipping

Discover our premium Fused Silica Powder in various mesh sizes. High purity, versatile, and top-grade for all your silica needs. Packaged in 25kg plastic woven bags on pallets for easy delivery.

Lianyungang Chemsize International Trading Co., Ltd. offers premium Fused Silica Powder in various mesh sizes. Our high-purity silica is ideal for a wide range of applications.

Fused Silica Making Process

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

Fused Silica Sand Appearance and Specifications:

1. Must not contain any unfused parts.


2. Should be free of foreign materials such as strings, plastic lines, carbon, wood, metal, or other contaminants.


3. Any color dots are prohibited except for conditional black dots.


4. Black spot diameter should not exceed 2mm.


5. 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

Chemsize, a leading manufacturer of Fused Silica grains and powders, offers high-quality materials for various industries such as Refractory, Investment Casting, Technical Ceramic, and EMC filler. Our Fused Silica boasts a fusion ratio of up to 99.9% Amorphous SiO2, low iron content (max 30ppm), and minimal impurities, resulting in low thermal expansion, excellent thermal shock resistance, and low electrical conductivity.

Our unique electric-arc fusion technique ensures the production of pure Fused Silica with over 99.9% SiO2 content, meeting ISO-certified standards. With a low thermal expansion coefficient, exceptional chemical stability, and precise particle size distribution, Chemsize Fused Silica is ideal for foundry, refractory, investment casting, and specialized applications.

Applications of Fused Silica include making crucibles for solar cell production, rollers, castables, mortars, and forming tools in the glass industry, technical ceramics, and ceramic slurry for investment casting. Our products range from precast shapes and big blocks to ramming mixes, resin fillers, EMC fillers, and more, tailored to meet diverse industry needs.

For investment casting, our Teco-Sil grade Fused Silica ensures volume stability and enables the production of tight tolerance castings with ease of shell removal. With a standard packaging of 25kg bags or jumbags, we offer flexible shipment options for bulk orders.

Choose Chemsize Fused Silica for superior performance in high-temperature applications, thermal resistance, and insulative properties required in various industries like steelmaking, glass manufacturing, and more.

Chemsize Fused Silica

Welcome to Chemsize Fused Silica

Introducing Chemsize Fused Silica, a leading supplier of raw materials and machines for investment casting processes for over 30 years.

Advantages of Fused Silica:

• Better particle shape for primary slurry


• Decreased material consumption due to lower density


• Increased permeability and porosity for improved shell quality


• Easier knock-out and shell removal


• Consistent and sustainable sourcing from China


• Cost-effective pricing at US$0.56/kg FOB LIANYUNGANG PORT

Application Areas:

Widely used in coreless medium frequency furnaces and core induction furnaces for melting various metals and alloys.

FAQ:

1. Sample orders available with free shipping


2. Lead time: 3-5 days for samples, up to 15 days for orders


3. No MOQ for fused silica sand orders


4. Shipping via ***/FEDEX/DHL with prompt delivery

Summary:

Intermediate frequency furnace ramming material for various furnace linings, including acidic, neutral, and alkaline options.