Low Electrical Conductivity Fused Quartz Sand

• 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 Quartz Sand. Specializing in a wide range of customized quartz sand products for various industrial applications.

Product Description

Discover our Grade A Fused Silica sand & powder with low electrical conductivity, high purity, and precision engineered for various industrial applications. Choose Chemsize International Trading Co., Ltd. as your customized quartz sand supplier.

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 Quartz Sand with exceptional properties like low thermal expansion and high purity. Ideal for various industrial 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

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


• Solar crucible


• Quartz marble


• 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


• Artificial marble

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.

Company name: Lianyungang Chemsize International Trading Co., Ltd.

Third Party Test Report

Production Process

Product Description:

At Lianyungang Chemsize International Trading Co., Ltd., we specialize in the production of high-purity fused silica. Our fused silica is derived from top-quality quartz sand sourced locally from Donghai/Xinyi, ensuring a silica content of over 99%. Through a meticulous process of melting the silica sand at temperatures ranging from 2000-2300 ºC, we create a durable and versatile material ideal for refractory applications.

The resulting fused silica exhibits exceptional high volume stability, low volumetric expansion, and unmatched purity, making it perfect for use in aluminum launders and other demanding applications. Our fused silica products are available in various forms, including lumps, sand, and powder, tailored to meet the specific requirements of our customers.

Detailed Photos

Discover our high clarity fused silica sand for exceptional pictures. Perfect for various applications requiring precision and purity.

Packaging & Shipping

Our Low Electrical Conductivity Fused Quartz Sand is packaged in 25kg plastic woven bags and placed on pallets for delivery. Ideal for various industrial applications.

Lianyungang Chemsize International Trading Co., Ltd. offers Low Electrical Conductivity Fused Quartz Sand for various industrial applications. Our high-quality product ensures precision and reliability.

Fused Silica Product Description

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:

1. Must not contain any unfused parts.


2. Should be free of foreign materials such as string, plastic, 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 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% Amorphous SiO2, low iron content (30ppm max), and minimal impurities, resulting in low thermal expansion, high thermal shock resistance, and low electrical conductivity. Our unique fusion technique ensures the purest quality Fused Silica in China, meeting ISO-certified standards.

Our Fused Silica is ideal for applications in refractory, investment casting, technical ceramic, EMC fillers, and more. With extremely low thermal expansion, consistent chemistry, and controlled particle size distribution, our products are designed for specialized uses in various industries.

Key Applications:

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


• Rollers, castables, mortars, and forming tools in the glass industry


• Technical ceramics in the thermal resistance industry


• Ceramic slurry in investment casting

Our standard packaging includes 25kg bags, 48 bags per pallet, or jumbags with a net weight of 1200kgs. We also offer tailored shipments for bulk bags of varying sizes to meet customer preferences.

Explore our range of Fused Silica products for investment casting, refractory applications, EMC fillers, powder coating, and more. Trust Chemsize for high-quality Fused Silica solutions tailored to your industry needs.

Introducing Chemsize Fused Silica

Chemsize Fused Silica is a premium raw material for investment casting processes, offered by Lianyungang Chemsize International Trading Co., Ltd. With over 30 years of experience, we are a leading supplier in the industry.

Advantages of Chemsize Fused Silica:

• Better particle shape for improved primary slurry performance


• Reduced material consumption due to lower density compared to Zircon


• Enhanced permeability and porosity for superior shell quality


• Easier knock-out and faster leaching for efficient shell removal


• Consistent quality and sustainability sourced from the world's largest Fused Silica production area


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

Application Areas:

Chemsize Fused Silica is ideal for use in induction furnace lining ramming material, intermediate frequency furnace lining material, and dry vibration material. It is suitable for melting various metals and alloys including cast iron, steel, stainless steel, aluminum, copper, and bronze.

FAQ:

Q1: Can I request a sample order for Chemsize Fused Silica products?

A: Yes, we offer free samples shipped via ***/FEDEX/DHL.

Q2: What is the lead time for samples and bulk orders?

A: Samples can be sent within 3-5 days. Bulk orders typically ship within 15 days for quantities up to 100mt.

Q3: Is there a minimum order quantity for Chemsize Fused Silica sand?

A: No, there is no MOQ requirement, but lower quantities may result in higher average costs.

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

A: Goods are shipped promptly, with delivery times varying based on location and shipping method.