Thermal Insulating Fused Quartz Powder

• 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

Lianyungang Chemsize International Trading Co., Ltd. offers high-quality Thermal Insulating Fused Quartz Powder for superior thermal protection. Experience the best service and quality with us!

Product Description

Grade A Fused Silica sand & powder for thermal insulation purposes. Ideal for various applications requiring high-quality insulating properties.

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%

Thermal Insulating Fused Quartz Powder with thermal conductivity of 1.3w/m*k(20 ºC) and dielectric constant of 3.8(1MHz,20). Ideal for thermal insulation 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


• Refactories


• 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 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.

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 high-quality Fused Silica for clear pictures. Perfect for thermal insulation needs.

Packaging & Shipping

Fused Silica Package and Delivery: 25kg net plastic woven bags on pallets.

Explore our Fused Silica Factory and Quality Control Pictures at Lianyungang Chemsize International Trading Co., Ltd. for top-notch Thermal Insulating Fused Quartz Powder.

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 material is then specially processed 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:

1. No unfused parts are allowed.


2. Foreign materials like strings, plastic lines, carbon, wood, metal, or other contaminants are strictly prohibited.


3. Color dots are not permitted except for conditional black dots.


4. Black spot diameter should not exceed 2mm.


5. 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 known for their exceptional purity, low thermal expansion, and excellent thermal shock resistance.

Key Features:

• Amorphous SiO2 content up to 99.9%


• Low iron (30ppm max) and low impurities


• Low coefficient of thermal expansion


• High resistance to thermal shock


• Extremely low electrical conductivity

Production Process:

At Chemsize, we use a proprietary electric-arc fusion technique to create Fused Silica with over 99.9% SiO2 purity. Our products are ISO-certified, inert, and chemically stable, making them ideal for a wide range of applications.

Applications:

Our Fused Silica products are used in industries such as foundry, refractory, investment casting, glass manufacturing, and more. They are perfect for producing crucibles, rollers, technical ceramics, and ceramic slurry.

Product Range:

We offer a variety of Fused Silica products including precast shapes, big blocks, ramming mixes, resin fillers, EMC fillers, powder coatings, and more. Our materials are designed to meet the specific needs of each industry.

Investment Casting Grade:

Our Fused Silica is widely used in investment casting processes for creating precision components in automotive, aerospace, medical, and other industries. Its low thermal expansion coefficient ensures tight tolerance castings.

Contact us today to learn more about our premium Fused Silica products!

Introducing Chemsize Fused Silica

Discover the advantages of using Fused Silica flour 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 and sustainable sourcing from China


• 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 casting processes.

Summary:

Our Fused Silica is a top choice for medium frequency furnace lining, melting various metals and alloys with ease.

FAQ:

Sample orders available with quick delivery times. No MOQ limit for fused silica sand orders.

Experience the quality and efficiency of Chemsize Fused Silica today!