Fine Fused Silica Grains for Thermal Insulation

• 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.: 0-1mm, 1-3mm, 3-5mm, 5-8mm, 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 International Trading Co., Ltd. offers top-quality Fine Fused Silica Grains for Thermal Insulation. Choose us for the best service and quality!

Product Description

Grade A Fused Silica sand & powder for thermal insulation. Top-quality grains and powder for industrial use. Affordable and durable solution.

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%

Discover our Fine Fused Silica Grains for Thermal Insulation, perfect for high-quality and affordable insulation solutions. Trust the best in the industry for your insulation needs.

		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 Products

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

Fused Silica Special Feature:

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

Fused Silica Applications:

Fused Silica is used in industries such as thermal ceramics, refractories, investment casting, EMC, solar crucibles, quartz marbles, powder coating, etc.

Available Fused Silica 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 according to the customer's special requirements.

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

Third Party Test Report

Production Process

Fused Silica Production Process

Fused silica is 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.

Raw Material

We strictly choose high purity silica sand (SiO2 > 99%) from Donghai/Xinyi as our raw material.

Manufacturing Process

The silica sand is melted at high temperatures (2000-2300 ºC) to form amorphous silicon dioxide glassy ingot, which is then cooled. The products are further processed into fused silica lump, sand, and powder according to customer requirements.

Company Information

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

Detailed Photos

Discover our Fine Fused Silica Grains for Thermal Insulation, ideal for high-quality and affordable insulation solutions. Trust Lianyungang Chemsize for top-notch silica grains.

Packaging & Shipping

Fine Fused Silica Grains for Thermal Insulation in 25kg plastic woven bags on pallets. Supplier: Lianyungang Chemsize International Trading Co., Ltd.

Fine Fused Silica Grains for Thermal Insulation

Explore our top-quality fused silica grains for efficient thermal insulation needs. Durable and affordable, perfect for industrial 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 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 making 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 forbidden.


• 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

Lianyungang Chemsize International Trading Co., Ltd. is a leading manufacturer of Fused Silica grains and powders. Our Fused Silica materials are used in industries such as Refractory, Investment Casting, Technical Ceramic, and EMC filler, with excellent feedback from customers.

Our Fused Silica has a high fusion ratio (Amorphous SiO2 up to 99.9% min), low iron content (30ppm max), and low impurities, resulting in a material with low thermal expansion, high thermal shock resistance, and low electrical conductivity. Our unique electric-arc fusion technique ensures the highest quality Fused Silica in China, meeting ISO-certified standards.

Chemsize Fused Silica is specially engineered for foundry, refractory, investment casting, and other applications, offering extremely low thermal expansion, consistent chemistry, and controlled particle size distribution. It is ideal for use in various industries due to its insulative properties, thermal shock resistance, and volume stability in investment casting.

Our standard packaging includes 25kg bags, 48 bags per pallet, or jumbags with a net weight of 1200kgs. We also offer tailored shipments for customers requiring bulk bags of different 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 ceramic in the thermal resistance industry


• Ceramic slurry in the investment casting industry

Our Fused Silica products are also used in various applications such as resin fillers, EMC fillers, powder coating, and more. Whether for hot repairs in glass furnaces or coreless induction furnaces for steel melting, our Fused Silica offers superior performance at high temperatures.

Investment Casting grade Fused Silica is perfect for precision casting in industries like automotive, aerospace, medical, and more, providing high-quality and precise castings.

Introducing Chemsize Fused Silica

Chemsize Fused Silica is a leading supplier of raw materials and machines 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


• Consistent quality and sustainability


• Cost-effective pricing at US0.56/kg FOB LIANYUNGANG PORT

Application Areas:

Our Fused Silica is ideal for use in induction furnace lining ramming material, intermediate frequency furnace lining material, and dry vibration material.

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: Samples can be sent within 3-5 days. Orders under 100mt are typically delivered within 15 days.

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 delivery time?

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

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