Cost-Efficient Fused Silica for Hot Repairs

• Customization: Available
• Certification: ISO
• Application: Rubber, Ceramic, Casting
• Model NO.: 10-20mesh, 20-50, 30-50, 50-100, 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 high-quality fused silica for hot repairs. Our cost-effective product is ideal for various applications such as investment casting, refractory shapes, and powder coating filling.

Product Description

Discover our Grade A Fused Silica sand & powder, ideal for hot repairs and investment casting. High-quality, cost-effective material for various applications.

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 high-quality 30-50mesh fused silica for hot repairs. Ideal for investment casting, induction furnace lining, and more. Cost-effective and top-notch quality.

		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 ceramics, refractories, investment casting, EMC, solar crucibles, quartz marbles, 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

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

Product Description:

Lianyungang Chemsize International Trading Co., Ltd. specializes in the production of fused silica, a high-purity quartz sand that is melted to form glass. Fused silica offers high volume stability, low volumetric expansion, and exceptional purity, making it ideal for various refractory applications, including aluminum launders.

We meticulously select high-purity silica sand (SiO2>99%) from Donghai/Xinyi as our raw material. Through a meticulous process of melting the silica sand at high temperatures (2000-2300 ºC) and subsequent cooling, we produce amorphous silicon dioxide glassy ingots. These ingots are further processed into fused silica lumps, sand, and powder to meet our customers' specific requirements.

Detailed Photos

Discover our high-quality Fused Silica for hot repairs. Ideal for investment casting, induction furnace lining, and more. Cost-effective and top-notch quality.

Packaging & Shipping

25kg net Fused Silica Plastic Woven Bag, palletized for delivery. Ideal for hot repairs, investment casting, and refractory applications.

Explore our gallery showcasing our top-notch fused silica production facility and stringent quality control measures. Trust Lianyungang Chemsize for cost-effective, high-quality fused silica for various applications.

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:

• Must not contain any unfused parts.


• Should not have any 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

Chemsize, a leading manufacturer of Fused Silica grains and powders, offers high-quality materials for various industries. Our Fused Silica boasts a fusion ratio of up to 99.9% Amorphous SiO2, low iron content (30ppm max), and minimal impurities, resulting in low thermal expansion, excellent thermal shock resistance, and low electrical conductivity.

Our proprietary electric-arc fusion technique ensures the purity of our Fused Silica, exceeding 99.9% SiO2. With ISO-certified standards, our Fused Silica is inert, chemically stable, and has extremely low conductivity. The carefully controlled particle size distribution and consistent chemistry make our products ideal for foundry, refractory, investment casting, and other specialized applications.

Chemsize Fused Silica is widely used in various industries, including solar cell production, glass manufacturing, thermal resistance applications, investment casting, and more. Our products range from crucibles and rollers to ramming mixes and ceramic welding materials, all designed for high-performance and reliability.

Whether you need Fused Silica for EMC fillers, powder coating, or hot repair in glass furnaces, Chemsize has a solution for your specific requirements. Our standard packaging includes 25kg bags, 48 bags per pallet, or jumbags with a net weight of 1200kgs, with the option for customized bulk bag sizes.

Experience the exceptional quality and versatility of Chemsize Fused Silica products for your industrial needs. Contact us today to learn more about our tailored solutions for your applications.

Chemsize Fused Silica

Welcome to Chemsize Fused Silica

Introducing Chemsize Fused Silica, a leading supplier of raw materials and machines for investment casting for over 30 years.

Advantages of Fused Silica:

1. Better particle shape for primary slurry


2. Decreased material consumption due to lower density


3. Increased permeability and porosity for improved shell quality


4. Easier knock-out and shell removal


5. Consistent and sustainable sourcing from China


6. 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 provide free samples 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?

A: Shipping methods vary, and delivery times depend on location.