Top-Quality Fused Silica Powder for Casting

• Customization: Available
• Certification: ISO
• Application: Rubber, Ceramic, Casting
• Model NO.: 0-1mm, 1-3mm, 3-5mm, 5-8mm, 200mesh, 325mesh
• 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%
• 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 International Trading Co., Ltd. offers top-quality fused silica powder for casting. Experience the best service and quality with our premium quartz sand products.

Product Description

Discover our Grade A Fused Silica sand & powder, perfect for casting applications. Made with top-quality materials, our product ensures superior results.

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

Discover our top-quality fused silica powder for casting, sourced from Lianyungang Chemsize International Trading Co., Ltd. Perfect 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

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

Special Feature:

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

Applications:

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, 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 the 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 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 ingots, which are then processed into fused silica lumps, sand, and powder based on customer requirements.

Detailed Photos

Discover our top-quality Fused Silica Powder for casting, sourced from premium quartz sand. Perfect for high-clear pictures.

Packaging & Shipping

Top-Quality Fused Silica Powder for Casting in 25kg plastic woven bags, palletized for delivery. Ideal for various applications.

Explore our top-quality fused silica powder for casting, sourced from Lianyungang Chemsize International Trading Co., Ltd. Perfect for premium casting applications.

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 form amorphous Silicon dioxide. The material is then engineered into various forms such as lumps, cullet, ingots, sand, grain, granular, and powder flour. These forms are specifically designed for creating 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 contact Lianyungang Chemsize International Trading Co., Ltd.

Chemsize Fused Silica Products

Welcome to Chemsize Fused Silica Products

Chemsize, a leading manufacturer of Fused Silica grains and powders, offers high-quality materials for various industries such as Refractory, Investment Casting, Technical Ceramic, and EMC fillers. Our Fused Silica materials are renowned for their exceptional quality and performance.

Our Fused Silica boasts a fusion ratio of up to 99.9% Amorphous SiO2, with low iron content (max 30ppm) and minimal impurities. This results in materials with low thermal expansion, high thermal shock resistance, and low electrical conductivity. Our unique blending, sieving, and grinding processes, combined with advanced particle size analysis, ensure that we consistently deliver the most suitable Fused Silica materials to our customers.

At Chemsize, we produce Fused Silica using a proprietary electric-arc fusion technique, resulting in pure silica with over 99.9% SiO2 content. Our Fused Silica is amorphous, with excellent chemical stability, extremely low conductivity, and adherence to ISO-certified standards.

Our Fused Silica products are specially engineered for foundry, refractory, investment casting, and other specialized applications. With an extremely low thermal expansion coefficient, consistent chemistry, and precise particle size distribution, Chemsize Fused Silica is the ideal choice for demanding industrial applications.

Our standard packaging includes 25kg bags, 48 bags per pallet, or jumbo bags with a net weight of 1200kgs. We also offer customized shipments for customers requiring bulk bags of varying sizes.

Applications of Fused Silica:

• 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 the investment casting industry

Explore our wide range of Fused Silica products tailored for various applications, including investment casting, refractories, EMC fillers, powder coating, and more. Trust Chemsize for premium quality Fused Silica materials that meet the highest industry standards.

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 enhanced shell quality


• Easier knock-out and shell removal


• Consistent and sustainable sourcing from the world's largest Fused Silica producing area


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

Application Areas:

Widely used in coreless medium frequency furnaces and core induction furnaces for melting various metals and alloys.

FAQ:

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

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

Q2. What is the lead time?

A: 3-5 days for samples, within 15 days for orders up to 100mt.

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

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

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