Ultra High Purity Fused Silica Powder for Gel Cast

• Customization: Available
• Certification: ISO
• Application: Rubber, Ceramic, Casting
• Model NO.: 200 mesh 325mesh D50 3-5,6-9,10-14,15-18 microns
• 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%
• 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
• Package Size: 110.00cm * 110.00cm * 100.00cm
• Package Gross Weight: 1003.000kg

Product Description

Lianyungang Chemsize International Trading Co., Ltd. offers Ultra Pure Fused Quartz Sand Grains. High-quality fused silica sand and powder for sale. Top-notch service and quality guaranteed!

Product Description

Discover Grade A Ultra Pure Fused Quartz Sand Grains from Lianyungang Chemsize International Trading Co., Ltd. Ideal for various applications requiring high purity silica.

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 Ultra Pure Fused Quartz Sand Grains with exceptional thermal conductivity and dielectric properties. Perfect for various applications requiring high-quality silica sand.

		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.

 

Company: 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, 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 stunning high-quality fused silica pictures with Lianyungang Chemsize International Trading Co., Ltd.'s Ultra Pure Fused Quartz Sand Grains. Perfect for various applications.

Packaging & Shipping

25kg net Fused Silica Plastic Woven Bags on Pallet for delivery. Quality Ultra Pure Fused Quartz Sand Grains from Lianyungang Chemsize International Trading Co., Ltd.

Explore our gallery showcasing the production process and quality control of Ultra Pure Fused Quartz Sand Grains at the Lianyungang Chemsize International Trading Co., Ltd. factory.

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 resulting material is then 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.


• Any color dots are not allowed except for conditional black dots.


• Black spot diameter should not exceed 2mm.


• Total quantity of black dots 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 filler applications.

 

Key Features:

 

• Amorphous SiO2 content up to 99.9% for superior quality


• Low iron and impurities for enhanced performance


• Low coefficient of thermal expansion and high resistance to thermal shock


• Extremely low electrical conductivity for safety


 

 

Production Process:

 

Our Fused Silica is manufactured using a proprietary electric-arc fusion technique, ensuring purity and quality. It meets ISO-certified standards and is chemically stable with low conductivity.

 

Applications:

 

Our Fused Silica products are ideal for various applications including foundry, refractory, investment casting, and more. They are specially engineered for specific industry needs.

 

Product Range:

 

We offer a wide range of Fused Silica products including crucibles, rollers, castables, mortars, and more. Our products are tailored for different industries such as glass, thermal resistance, investment casting, and steelmaking.

 

Shipping Information:

 

We provide standard packaging in 25kg bags, 48 bags per pallet, or jumbags with a net weight of 1200kgs. Customized bulk bag shipments are available upon request.

 

Investment Casting Grade:

 

Our Fused Silica is perfect for investment casting applications, delivering precision and quality for automotive, aerospace, medical, and other industries.

Contact us at Lianyungang Chemsize International Trading Co., Ltd. for more information.




 

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 process


• Consistent quality and sustainable sourcing


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


 

 

Application Areas:

 

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

 

FAQ:

 

1. Sample orders are available with free shipping by ***/FEDEX/DHL


2. Lead time for samples is 3-5 days; for orders within 100mt, delivery is within 15 days


3. No MOQ limit for fused silica sand orders


4. Shipping methods and delivery times vary


 

 

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