Thermal Insulation 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 top-grade Thermal Insulation Fused Quartz Powder. Explore our innovative silica solutions for high-quality performance.

Product Description

Discover our Grade A Fused Silica sand & powder for top-tier thermal insulation solutions. Trust Lianyungang Chemsize International Trading Co., Ltd. for high-quality quartz products.

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 Thermal Insulation Fused Quartz Powder with exceptional thermal conductivity of 1.3w/m*k at 20 ºC, dielectric constant of 3.8 at 1MHz, and electrical conductivity of 3 μs/cm. Perfect for various applications requiring precise particle size distribution.

		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.

Fused Silica Special Feature:

• High purity amorphous powder


• Lowest coefficient of thermal expansion


• High resistance to thermal shock


• Low thermal conductivity


• Excellent electrical insulation and lower radiation

Fused Silica Applications:

• Thermal ceramic industry


• Refractory industry


• Investment casting


• EMC applications


• Solar crucible


• Quartz marble


• Powder coating


• Epoxy molding compound


• Epoxy potting compound


• Electrical insulation


• Refractories


• Filler for liquid type sealants


• Various types of resin fillers


• Resin substrates


• Precision casting


• Coating and painting


• Artificial marble

Fused Silica 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 customer's special requirement.

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

Third Party Test Report

Production Process

Fused Silica Product Description

Welcome to Lianyungang Chemsize International Trading Co., Ltd.

Discover our premium fused silica products:

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 it a versatile material for refractory applications.

Key Features:

• High purity silica sand (SiO2 > 99%) sourced locally


• Amorphous silicon dioxide glassy ingot produced through high-temperature fusion (2000-2300 ºC)


• Available in fused silica lump, sand, and powder forms

Benefits:

• Excellent stability and durability


• Ideal for aluminum launders and highly cyclical applications


• Customizable products tailored to customer requirements

Contact us today to explore the possibilities with our premium fused silica products!

Detailed Photos

Discover our Thermal Insulation Fused Quartz Powder for high clarity pictures. Our affordable, top-grade quartz powder offers exceptional performance.

Packaging & Shipping

Our Thermal Insulation Fused Quartz Powder is delivered in 25kg plastic woven bags, then palletized for convenience. Trust Lianyungang Chemsize for top-grade quartz solutions.

Explore our Thermal Insulation Fused Quartz Powder for top-grade quality and innovative quartz technology. Trust our leading quartz manufacturer for versatile silica solutions.

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 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 not have any foreign materials like string, plastic line, 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

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

Key Features:

• High fusion ratio of up to 99.9% Amorphous SiO2


• Low iron content (30ppm max) and low impurities


• Low coefficient of thermal expansion


• High resistance to thermal shock


• Extremely low electrical conductivity

Manufacturing Process:

Our Fused Silica is produced using a proprietary electric-arc fusion technique, ensuring purity exceeding 99.9% SiO2. It meets ISO-certified standards, offering excellent chemical stability and extremely low conductivity.

Applications:

Chemsize Fused Silica is used in various industries, including foundry, refractory, investment casting, and more. It is ideal for applications requiring insulative properties, low thermal conductivity, and thermal shock resistance.

Product Range:

We offer a wide range of Fused Silica products, including crucibles, rollers, castables, mortars, and more. Our materials are tailored for specific applications and can be customized to meet varying needs.

Standard Packaging:

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

Investment Casting Grade:

Our Fused Silica is suitable for investment casting applications, providing volume stability and tight tolerance castings. It is widely used in automotive, aerospace, medical, and other industries.

Contact Us:

For more information on our Fused Silica products, contact Lianyungang Chemsize International Trading Co., Ltd.

Introducing Chemsize Fused Silica

Chemsize Fused Silica is a leading supplier of raw materials and machinery for investment casting processes, with over 30 years of experience. Our Fused Silica flour offers numerous advantages over traditional Zircon Flour:

• Better particle shape for improved primary slurry quality


• Reduced material consumption due to lower density


• Increased permeability and porosity for better shell quality


• Easier knock-out and shell removal


• Consistent quality and sustainable sourcing


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

Applications:

Our Fused Silica is ideal for induction furnace lining ramming material, providing superior performance in various applications.

FAQ:

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

A: Yes, we offer free samples shipped via ***/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: Goods are shipped promptly, with delivery times varying based on location.

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