Electrically Insulating 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 electrically insulating fused quartz sand. Our product is perfect for various industrial applications requiring premium silica sand and powder. Choose us for the best service and quality!

Product Description

Discover our Grade A Fused Silica sand & powder, perfect for electrically insulating applications. High purity, affordable, and chemically stable for various industrial uses.

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%

Electrically insulating fused quartz sand with thermal conductivity of 1.3 W/m*K (20 ºC), dielectric constant of 3.8 (1MHz, 20 ºC), and electrical conductivity of 3 μs/cm. Ideal 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 Powder

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

Fused Silica Special Feature:

• 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

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

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 applications.

We strictly choose high purity silica sand (SiO2 > 99%) from local Donghai/Xinyi as our raw material. The melted silica sand transforms into amorphous silicon dioxide glassy ingot after being fused at high temperatures (2000-2300 ºC) and cooling. We further process the products into fused silica lump, sand, and powder according to customer requirements.

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

Detailed Photos

Discover our Electrically Insulating Fused Quartz Sand for high clear pictures. Made from Premium Silica Sand, our product is Chemically Stable, Heat Resistant, and Transparent. Ideal for various applications.

Packaging & Shipping

High Purity Fused Silica in 25kg plastic woven bags on pallets for delivery. Ideal for electrically insulating applications.

Fused Silica Factory and Quality Control Pictures

Explore images showcasing the production process and quality control measures at Lianyungang Chemsize International Trading Co., Ltd., a leading manufacturer of Electrically Insulating Fused Quartz Sand.

Fused Silica Product Description

Welcome to Lianyungang Chemsize International Trading Co., Ltd.

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 resulting material is engineered into various forms such as lumps, cullet, ingots, sand, grain, granular, and powder flour. These forms are ideal 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 string, plastic, 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 feel free to contact us!

Chemsize Fused Silica Products

Welcome to Chemsize Fused Silica

Chemsize, a leading manufacturer of Fused Silica, offers high-quality grains and powders for various industries such as Refractory, Investment Casting, Technical Ceramic, and EMC fillers. Our Fused Silica materials are known for their exceptional purity, low thermal expansion, and excellent thermal shock resistance.

Key Features:

• Amorphous SiO2 content up to 99.9% min


• Low iron (30ppm max) and low impurities


• Low coefficient of thermal expansion


• High resistance to thermal shock


• Extremely low electrical conductivity

Our unique electric-arc fusion technique ensures the production of Fused Silica with over 99.9% SiO2 purity, meeting ISO-certified standards. Chemsize Fused Silica is chemically stable, inert, and carefully engineered for specific applications.

Applications:

• Solar cell crucibles in the photo-voltaic industry


• Rollers, castables, and mortars in the glass industry


• Technical ceramic in the thermal resistance industry


• Ceramic slurry in investment casting

Our products include Fused Silica shapes, ramming mixes, resin fillers, EMC fillers, and more, tailored to meet diverse industry needs. Whether for foundry applications or hot repair in glass furnaces, Chemsize Fused Silica offers superior performance at high temperatures.

Investment Casting Grade:

Our Fused Silica is ideal for precision investment casting, producing high-quality components for various sectors like automotive, aerospace, and medical industries.

Contact Lianyungang Chemsize International Trading Co., Ltd. today for premium Fused Silica solutions tailored to your specific requirements.

Introducing Chemsize Fused Silica

As a leading supplier of raw materials and machinery for investment casting for over 30 years, we are proud to present Chemsize Fused Silica. Many foundries use Zircon Flour for their primary slurry, but with rising prices and shortages, we recommend Fused Silica for the following advantages:

• Particle shape: Our Fused Silica offers superior particle shape crucial for primary slurry.


• Decreased material consumption: Fused Silica's lower density means you need less material by weight, enhancing efficiency.


• Increased permeability and porosity: Fused Silica's lighter nature improves shell permeability and porosity.


• Easier knock-out: Fused Silica breaks down easily post-pouring, simplifying shell removal.


• Faster leaching and shell removal: Fused Silica aids in the leaching process, making shell removal easier.


• Consistency and sustainability: Our Fused Silica from China's Lianyungang area ensures consistent quality and availability.


• Cost-effective: Our Fused Silica is priced at US$0.56/kg FOB LIANYUNGANG PORT.

Fused Silica Applications

Used in induction furnace lining ramming material, our Fused Silica is ideal for various applications in the foundry industry.

FAQs

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

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

Q2. What is the lead time?

A: Sample delivery takes 3-5 days, while bulk orders under 100mt are delivered within 15 days.

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

A: No, but lower quantities may incur higher average costs.

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