Versatile Fused Silica Options for Different Needs

• 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.: 10-20mesh, 20-50, 30-50, 50-100, 200mesh 325mesh
• Amorphous Sio2: >99%
• Quartz Sio2: <0.1%
• Cristobalite Sio2: <0.1%
• 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 offers versatile fused silica options for various needs. High-quality materials for welding repairs, investment casting, and refractory solutions. Low iron content and micron size choices available.

Product Description

Discover Grade A Fused Silica sand & powder options from Lianyungang Chemsize International Trading Co., Ltd. Perfect for various needs like ceramic welding repairs, investment casting, and more. Choose from a range of mesh and micron sizes with low iron content.

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%

Particle Size Distribution

Explore our range of versatile fused silica options for various needs, including ceramic welding repairs, investment casting, and powder coating fillers. Choose from a variety of mesh and micron sizes with low iron content.

		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

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

Special Feature:

Fused Silica features an extremely low coefficient of thermal expansion, consistent chemistry, and carefully controlled particle size distribution.

Applications:

Fused Silica is used in industries such as thermal ceramic, refractory, investment casting, EMC, solar crucible, quartz marble, powder coating, etc.

Available Sizes:

• 0-1mm, 1-3mm, 3-5mm, 0.2-0.5mm, 0.1-0.5mm


• -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 the 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 in aluminum launders or other highly cyclical applications.

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

Detailed Photos

Discover our versatile Fused Silica options for various needs, including ceramic welding repairs, investment casting, and powder coating fillers. Choose from a range of mesh and micron sizes with low iron content for optimal performance.

Packaging & Shipping

Versatile Fused Silica Options for Different Needs. 25kg Net Plastic Woven Bags on Pallet. Ideal for various applications.

Explore our versatile fused silica options for various needs, including ceramic welding repairs, investment casting, and powder coating fillers. Choose from a range of mesh and micron size options with low iron content.

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 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 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 big bag or less than 10 dots per square meter.

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 for various industries such as Refractory, Investment Casting, Technical Ceramic, and EMC filler applications. Our Fused Silica materials are known for their exceptional purity, low iron content, and minimal impurities, resulting in low thermal expansion, high thermal shock resistance, and low electrical conductivity.

Our proprietary electric-arc fusion technique ensures that our Fused Silica is over 99.9% SiO₂, amorphous, and meets ISO-certified standards for quality. With carefully controlled particle size distribution and consistent chemistry, our products are designed for foundry, refractory, investment casting, and other specialized uses.

Key Features:

• Extremely low thermal expansion coefficient


• High resistance to thermal shock


• Excellent chemical stability


• Extremely low thermal conductivity

Applications:

• Solar cell crucibles in the photo-voltaic industry


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


• Technical ceramic production in the thermal resistance industry


• Ceramic slurry in 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 customers requiring bulk bags of varying sizes.

Whether you need Fused Silica for investment casting, refractory applications, or specialized uses, Chemsize has the high-quality products to meet your needs.

Introducing Chemsize Fused Silica

Chemsize Fused Silica is a leading supplier of raw materials and machinery for investment casting, with over 30 years of experience in the industry.

Advantages of Fused Silica:

• Better particle shape for primary slurry


• Decreased material consumption due to lower density


• Increased permeability and porosity for improved shell quality


• Easier knock-out and shell removal process


• Consistent quality and sustainable sourcing from China


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

Application Areas:

Our Fused Silica is ideal for use in induction furnace lining ramming material, providing high performance in various applications.

FAQ:

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

A: Yes, we offer free samples shipped by ***/FEDEX/DHL. Mixed samples are also available.

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

A: Samples can be sent within 3-5 days. Bulk orders of up to 100mt can be delivered within 15 days.

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

A: No, there is no MOQ, 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.