High-Purity Fused Silica Flour for Foundry Applications

• Certification: ISO
• Application: Rubber, Ceramic, Casting
• Type: Quartz
• 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%
• Model NO.: 10-20mesh, 20-50, 30-50, 50-100, 200mesh 325mesh
• 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

We are Lianyungang Chemsize International Trading Co., Ltd., a leading manufacturer of high-purity fused silica products. Our high-quality fused silica flour, grains, powder, and sand are perfect for foundry applications. With our durable and versatile quartz materials, you can achieve exceptional results in investment casting, refractory applications, and more. Choose our premium fused silica products for superior performance.

Product Description

Grade A Fused Silica Sand & Powder Specifications:

Our high-purity fused silica flour is perfect for foundry applications. It is available in various forms such as grains, powder, sand, and lumps. This versatile quartz material is durable and ideal for refractory castables, investment casting, and sandblasting. Choose our premium fused silica products for high-quality results.

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%

Product Name: High-Purity Fused Silica Flour for Foundry Applications

Keywords: High-Purity Fused Silica Flour, Foundry Applications, Fused Silica Grains, Fused Silica Powder, Fused Silica Sand, Fused Quartz, Fused Silica Cullet, Quarzglas, Fused Silica Lumps, Silica Powder, Refractory, Quartz Powder, Quartz Sand, Quartz, Amorphous, Silicon Oxide, Castables, Motar, Investment Casting, Fused Silica Grit

Description: Our high-purity fused silica flour is ideal for foundry applications. It is finely ground and offers exceptional durability and versatility. Perfect for investment casting, refractory castables, and sandblasting. Choose our premium fused silica for high-quality results.

		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

Chemsize International Trading Co., Ltd. offers high-quality fused silica with various particle sizes to meet your specific requirements.

Special Features

• Extremely low coefficient of thermal expansion


• Consistent chemistry


• Carefully controlled particle size distribution

Applications

Our fused silica is widely used in various industries, including:

• Thermal ceramic


• Refractory


• Investment casting


• EMC


• Solar crucible


• Quartz marble


• Powder coating

Available Sizes

We offer fused silica in the following 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


• And more...

Additionally, we can produce particle sizes according to your special requirements.

Third Party Test Report

Production Process

Fused Silica Production Process

Fused silica is a high purity quartz sand that has been melted to form glass. Its high volume stability, low volumetric expansion, and high purity make it an extremely useful and versatile material for refractory applications, such as aluminum launders and other highly cyclical applications.

At Lianyungang Chemsize International Trading Co., Ltd., we strictly choose high purity silica sand (SiO2>99%) from the local Donghai/Xinyi area as our raw material. The silica sand is melted at high temperatures (2000-2300 ºC) to form an amorphous silicon dioxide glassy ingot, which is then cooled. To meet our customers' specific requirements, we further process the ingot into fused silica lumps, sand, and powder.

Detailed Photos

High-Purity Fused Silica Flour for Foundry Applications

Discover our premium Fused Silica Flour, perfect for foundry applications. With its high purity and durability, it is ideal for investment casting, refractory castables, and sandblasting. Choose our finely ground silica powder for superior results.

Packaging & Shipping

Product Name: High-Purity Fused Silica Flour for Foundry Applications

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

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Package and Delivery: Fused Silica is packaged in a 25kg net plastic woven bag, and then placed on a pallet for delivery.

Fused Silica Factory and Quality Control Pictures

Explore our high-purity fused silica flour, grains, powder, sand, and lumps for various foundry applications. Our premium quartz material is durable, versatile, and perfect for investment casting, refractory castables, and sandblasting. Check out our factory and quality control pictures to see our commitment to delivering high-quality products.

Fused Silica Making Process

Fused Silica Making Process

Fused Silica is made of high purity crystal silica from China Donghai-Xinyi by electrically fusing (fusing temperature 1800-2000ºC) to amorphous Silicon dioxide. It is then specially engineered into lumps, cullet, ingots, sand, grain, granular, and powder flour form. These forms are designed for making PV fused silica crucible, thermal ceramic, refractory, EMC investment casting ceramic shell, and more.

Fused Silica Sand Appearance and Specifications:

1. It is forbidden to contain any unfused parts.


2. It is forbidden to have foreign material, such as string, plastic line, carbon or wooden material, metal, or other outside contaminants.


3. All color dots are forbidden except conditional black dots.


4. Black spot diameter larger than 2mm is not acceptable.


5. Total black dots quantity should be less than 10 when opening the big bag, equal to or less than 10 dots per square meter.

FAQ:

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

A: Yes, we'd like to send samples free of charge by ***/FEDEX/DHL. Mixed samples are acceptable.

Q2. What about the lead time?

A: It is 3-5 days for sending samples. It is usually within 15 days to deliver orders for quantities within 100mt.

Q3. Do you have any MOQ limit for fused silica sand order?

A: No. But the less the average cost higher.

Q4. How do you ship the goods and how long does it take to arrive?

A: We usually ship by DHL, UPS, FedEx, or ***. It usually takes 3-5 working days to arrive. It depends on the distance by sea, which can take 7-40 days.

Q5. How to process an order for fused silica powder products?

A:
1) Let us know your requirements or application.
2) We quote according to your requirements or our suggestions.
3) Customer confirms the samples and pays a deposit for the formal order.
4) We arrange the production.

Q6. Is it OK to print my logo on packages?

A: Yes. Please inform us formally before our production and confirm the design based on our sample.

Q7: How to deal with the faulty?

A: Firstly, our products are produced in a strict quality control system, and the defective rate will be less than 0.2%. Secondly, if it happens, we shall arrange to send new products to you and pay for all your losses.

Any questions, kindly contact us please!

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