Dielectric Material Fused Quartz 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 Dielectric Material Fused Quartz Powder. Specializing in top-grade silica products for various industries.

Product Description

Discover our Grade A Fused Silica sand & powder, perfect for various industrial applications. Produced 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 Dielectric Material Fused Quartz Powder with a thermal conductivity of 1.3w/m*k(20 ºC), dielectric constant of 3.8(1MHz,20), and electrical conductivity of 3 μs/cm. Explore our high-quality silica powder for various applications.

		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 by Lianyungang Chemsize International Trading Co., Ltd.

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

Fused Silica 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

Fused Silica 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


• Refractories


• Filler for liquid type sealants


• Various types of resin fillers


• Resin substrates


• Precision casting


• Coating and painting


• Artificial marble production

Available Fused Silica 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.

Third Party Test Report

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 fused silica a versatile material for refractory applications, such as in aluminum launders or other highly cyclical uses.

At Lianyungang Chemsize International Trading Co., Ltd., we carefully select high-purity silica sand (SiO2 > 99%) from 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.

Detailed Photos

Discover our top-grade Fused Silica for high-quality pictures. Made from premium quartz, our specialty silica powder ensures clarity and precision.

Packaging & Shipping

Fused Silica Package and Delivery: 25kg Net Plastic Woven Bags on Pallets for easy handling and transportation.

Lianyungang Chemsize International Trading Co., Ltd. offers top-grade fused quartz powder for various industrial applications. Our high-purity silica powder ensures 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 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 us at Lianyungang Chemsize International Trading Co., Ltd.

Chemsize Fused Silica Products

Chemsize, a leading manufacturer of Fused Silica grains and powders, offers high-quality materials for various industries. Our Fused Silica has a fusion ratio of up to 99.9% SiO2, low iron content (30ppm max), and minimal impurities, providing low thermal expansion, thermal shock resistance, and low electrical conductivity. Our unique fusion technique ensures superior quality and purity, meeting ISO standards.

Applications of Chemsize Fused Silica include crucibles for solar cell production, rollers, castables, mortars, and forming tools in the glass industry, technical ceramics, investment casting, and more. Our products are tailored for specific applications and available in various packaging options.

Key Features:

• High fusion ratio of up to 99.9% SiO2


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


• Low thermal expansion coefficient


• High resistance to thermal shock


• Excellent chemical stability and low electrical conductivity

Chemsize Fused Silica is ideal for industries such as foundry, refractory, investment casting, and more. Our products ensure consistent chemistry, controlled particle size distribution, and exceptional performance at high temperatures.

Explore our range of Fused Silica products for your specific needs in various industries.

Introducing Chemsize Fused Silica

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

• Better particle shape for improved primary slurry


• Reduced material consumption due to lower density


• Increased permeability and porosity for better shell quality


• Easier knock-out and shell removal


• Consistent quality and sustainable sourcing


• Competitive pricing at US$0.56/kg FOB LIANYUNGANG PORT

Applications:

Our Fused Silica is ideal for use in induction furnace lining ramming material, offering high purity and reliable performance. It is suitable for various applications in medium frequency furnaces, including melting different types of metals and alloys.

FAQ:

Q1: Can I request a sample order for fused silica products?

A1: Yes, we provide free samples shipped via ***/FEDEX/DHL.

Q2: What is the lead time for orders?

A2: Samples can be sent within 3-5 days, while orders under 100mt are typically delivered within 15 days.

Q3: Is there a minimum order quantity for fused silica sand?

A3: No, but lower quantities may result in higher average costs.

Q4: How are the goods shipped and what is the delivery time?

A4: Shipping methods vary, and delivery times depend on the location.

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