Fused Silica Powder with Excellent Dielectric Properties

• Customization: Available
• Certification: ISO
• Application: Rubber, Ceramic, Casting
• Model NO.: 325mesh 400mesh 600mesh 800mesh 1250mesh 2000mesh
• 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%
• Amorphous Sio2: >99%
• Quartz Sio2: <0.1%
• Cristobalite Sio2: <0.1%
• Thermal Conductivity: 1.3W/M*K
• Dielectric Constant: 3.8(1MHz,20 )
• Electrical Conductivity: 3us/Cm
• 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 Fused Silica Powder with exceptional dielectric properties for industrial applications. Trust us for superior silica materials!

Product Description

Discover our Grade A Fused Silica sand & powder with excellent dielectric properties for industrial applications. High purity, ultrafine particles for advanced technology.

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 Fused Silica Powder with exceptional dielectric properties. Ideal for advanced industrial applications requiring high purity and tailored quartz solutions.

		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

Pan designates the percentage of fused silica passing the last reported screen for each size.

Special Features:

• High purity amorphous powder


• Lowest coefficient of thermal expansion


• High resistance to thermal shock


• Low thermal conductivity


• Excellent electrical insulation and lower radiation

Applications:

• Thermal ceramic industry


• Refractory industry


• Investment casting


• EMC applications


• Solar crucible manufacturing


• Quartz marble production


• Powder coating


• Epoxy molding compound


• Epoxy potting compound


• Electrical insulation


• Refactories


• Filler for liquid type sealants


• Various types of resin fillers


• Resin substrates


• Precision casting


• Coating and painting applications


• Artificial marble production

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.

Company: Lianyungang Chemsize International Trading Co., Ltd.

Third Party Test Report

Production Process

Product Description:

Lianyungang Chemsize International Trading Co., Ltd. specializes in the production of high purity fused silica. Our fused silica is derived from locally sourced silica sand with a purity of SiO2>99%. Through a meticulous process of melting the silica sand at temperatures ranging from 2000-2300 ºC, we create amorphous silicon dioxide glassy ingots that are then further refined into fused silica lumps, sand, and powder to meet our customers' specific needs.

With its high volume stability, low volumetric expansion, and exceptional purity, fused silica is an incredibly versatile material ideal for refractory applications such as aluminum launders. Trust Chemsize International Trading Co., Ltd. for top-quality fused silica products that exceed industry standards.

Detailed Photos

Discover our premium Fused Silica Powder with exceptional dielectric properties for industrial applications. Tailored to provide innovative solutions.

Packaging & Shipping

Fused Silica Powder with Excellent Dielectric Properties in 25kg plastic woven bags on pallets. High-purity, ultrafine quartz for advanced industrial applications.

Lianyungang Chemsize International Trading Co., Ltd. offers high-purity Fused Silica Powder with exceptional dielectric properties for industrial applications. Explore our innovative silica solutions today!

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 form amorphous Silicon dioxide. The material is then engineered into various forms such as lumps, cullet, ingots, sand, grain, granular, and powder flour. These forms are specifically designed for creating 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 be free of foreign materials like strings, plastic lines, carbon, wood, metal, or other contaminants.


• Only conditional black dots are allowed; all other color dots are prohibited.


• Black spot diameter should not exceed 2mm.


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

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

Chemsize Fused Silica Products

Welcome to Chemsize Fused Silica Products

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 fillers. Our Fused Silica materials are renowned for their exceptional purity, low thermal expansion coefficient, and superior thermal shock resistance.

Key Features of Chemsize Fused Silica:

• Amorphous SiO2 content up to 99.9% minimum


• Low iron content (maximum 30ppm) and minimal impurities


• Excellent chemical stability and extremely low electrical conductivity


• Precisely engineered particle size distribution for optimal performance

Our proprietary electric-arc fusion technique ensures that our Fused Silica is of the purest quality, exceeding 99.9% SiO2. It is ideal for applications requiring high precision and reliability, meeting ISO-certified standards.

Applications of Chemsize Fused Silica:

• Crucibles for solar cell production in the photo-voltaic industry


• Rollers, castables, and mortars in the glass industry


• Technical ceramic production in the thermal resistance industry


• Ceramic slurry for investment casting applications

Whether you need Fused Silica for investment casting, refractory applications, or specialized uses like EMC fillers, Chemsize has a comprehensive range of products to meet your requirements. Our tailored packaging options ensure convenient handling and storage for all customers.

Experience the superior performance of Chemsize Fused Silica in your industry today!

Chemsize Fused Silica

Welcome to Chemsize Fused Silica

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

Advantages of Fused Silica:

1. Better particle shape for primary slurry


2. Decreased material consumption


3. Increased permeability and porosity


4. Easier knock-out and shell removal


5. Consistency and sustainability


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

Summary:

Fused Silica is ideal for induction furnace lining ramming material, offering high purity and consistent quality.

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 within 100mt


3. No MOQ for fused silica sand orders


4. Shipping via ***/FEDEX/DHL with varying delivery times

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