Low Electrical Conductivity Fused Silica Powder

• 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.: 325mesh 400mesh 600mesh 800mesh 1250mesh 2000mesh
• 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 Low Electrical Conductivity Fused Silica Powder. Choose us for exceptional quality and service!

Product Description

Discover our Grade A Fused Silica sand & powder with low electrical conductivity, high purity, and exceptional quality. Perfect for a wide range of industrial applications.

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 Low Electrical Conductivity Fused Silica Powder with exceptional quality and unique characteristics. Ideal for various applications requiring high insulating properties.

		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:

• 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 and ceramics


• Filler for liquid type sealants


• Various types of resin fillers


• Resin substrates


• Precision casting


• Coating and painting


• 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.

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

Third Party Test Report

Production Process

Fused Silica Production Process

High Purity Fused Silica

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 versatile material for refractory applications.

Key Features:

• High purity silica sand (SiO2 > 99%) sourced locally


• Melted at high temperature (2000-2300 ºC) to form amorphous silicon dioxide glassy ingot


• Available in lump, sand, and powder forms

Benefits:

• Excellent stability for highly cyclical applications


• Customizable products tailored to customer requirements


• Ensures high performance in aluminum launders and other applications

Choose Lianyungang Chemsize International Trading Co., Ltd. for top-quality fused silica products.

Detailed Photos

Discover our Low Electrical Conductivity Fused Silica Powder for high clarity pictures. Perfect for various applications requiring precision and transparency.

Packaging & Shipping

Fused Silica Powder in 25kg plastic woven bags on pallets for delivery. Ideal for high purity, electrically insulating applications.

Explore our top-grade Low Electrical Conductivity Fused Silica Powder, perfect for various industrial applications. Benefit from its exceptional quality and unique characteristics.

Fused Silica Product Description

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 engineered into various forms such as lumps, cullet, ingots, sand, grain, granular, and powder flour. These forms 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:

• 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 the big bag.

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

Chemsize Fused Silica Products

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

Our unique electric-arc fusion technique ensures that our Fused Silica is over 99.9% SiO2, amorphous, and meets ISO-certified standards. With extremely low thermal expansion, consistent chemistry, and controlled particle size distribution, our products are ideal for foundry, refractory, investment casting, and specialized applications.

Applications of Chemsize Fused Silica include crucibles for solar cell production, rollers and tools in the glass industry, technical ceramics, ceramic slurry for investment casting, and more. Our products are available in various forms such as precast shapes, big blocks, ramming mixes, and resin fillers.

For investment casting, our Teco-Sil offers volume stability and allows for tight tolerance castings with easy shell removal. We provide standard packaging in 25kg bags, 48 bags per pallet, or jumbags with a net weight of 1200kgs, with the option for customized bulk bag shipments.

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 machines for investment casting foundries for over 30 years.

Advantages of Fused Silica:

1. Better particle shape for primary slurry


2. Decreased material consumption due to lower density


3. Increased permeability and porosity for improved shell quality


4. Easier knock-out and shell removal


5. Consistent and sustainable sourcing from China


6. 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 varying delivery times

Summary:

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

Contact us at 'Lianyungang Chemsize International Trading Co., Ltd.'