High Purity Fused Silica Grains

• 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

Discover high-quality fused silica grains from Lianyungang Chemsize International Trading Co., Ltd. - your top supplier for premium silica products!

Product Description

High Purity Fused Silica Grains

Top-quality fused silica grains for sale. Trusted supplier of high purity silica sand and quartz powder. Explore our range now!

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%

High Purity Fused Silica Grains with thermal conductivity of 1.3w/m*k(20 ºC), dielectric constant of 3.8(1MHz,20), 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 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


• Refractories


• 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. 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

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 aluminum launders.

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 ingot, which is then processed into fused silica lump, sand, and powder according to customer specifications.

Detailed Photos

Discover our High Purity Fused Silica Grains for crystal-clear images. Top-quality silica grains for sale.

Packaging & Shipping

High Purity Fused Silica Grains in 25kg plastic woven bags, palletized for delivery. Top-quality product from Lianyungang Chemsize International Trading Co., Ltd.

Explore our High Purity Fused Silica Grains for top-quality silica products. Trusted supplier for quartz sand, silica flour, and more.

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 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 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 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, resulting in low thermal expansion, high thermal shock resistance, and low electrical conductivity.

Our unique electric-arc fusion technique ensures the purity of our Fused Silica, meeting 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 other specialized applications.

Key Applications:

• Crucibles for solar cell production


• Rollers, castables, and mortars in the glass industry


• Technical ceramics for thermal resistance


• Ceramic slurry for investment casting

Our standard packaging includes 25kg bags, 48 bags per pallet, or jumbo bags 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 a wide range of applications, including investment casting, refractories, EMC fillers, powder coating, and more.

For precision casting needs in industries like automotive, aerospace, and medical, Chemsize Fused Silica is the ideal choice for high-quality, reliable performance.

Introducing Chemsize Fused Silica

Discover the advantages of using Chemsize Fused Silica in your investment casting process:

• Better particle shape for improved primary slurry


• Decreased 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


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

Fused Silica Applications:

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

Summary:

Our Fused Silica is sourced from the world's largest area of production, ensuring high consistency and quality. Say goodbye to supply issues with Zircon and embrace the benefits of Fused Silica in your casting process.

FAQ:

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 for samples and bulk orders?

A: Samples are sent within 3-5 days, while bulk orders are delivered within 15 days for quantities up to 100mt.

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

A: No, 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, and delivery times vary based on location.

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