Foundry Fused Silica Flour

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

Welcome to Lianyungang Chemsize International Trading Co., Ltd.! We are a leading manufacturer of high-quality fused silica sand and powder. Our products, including Foundry Fused Silica Flour, are perfect for various applications in the refractory industry. Trust us for the best service and top-notch quality!

Product Description

Grade A Fused Silica Sand & Powder Specifications

Discover our high-quality fused silica sand and powder, perfect for various applications in the foundry industry. Our product, Foundry Fused Silica Flour, is a reliable choice for investment casting and refractory materials. With its amorphous silicon oxide composition, it offers excellent performance and durability. Choose from a range of sizes, including silica grit, lumps, and powder, to meet your specific needs. Trust Lianyungang Chemsize International Trading Co., Ltd. for all your fused silica requirements.

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%

Particle Size Distribution: Our Foundry Fused Silica Flour is a high-quality quartz refractory material with a precise particle size distribution. It is ideal for investment casting, castables, and other applications that require consistent performance. Choose from a range of sizes to suit your specific 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

Product Description

Fused Silica, offered by Lianyungang Chemsize International Trading Co., Ltd., is a high-quality material with exceptional properties. It is widely used in various industries due to its low coefficient of thermal expansion, consistent chemistry, and carefully controlled particle size distribution.

Special Features:

• Extremely low coefficient of thermal expansion


• Consistent chemistry


• Carefully controlled particle size distribution

Applications:

Fused Silica finds applications in thermal ceramic, refractory, investment casting, EMC, solar crucible, quartz marble, powder coating, and more.

Available 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...

The particle size can also be produced according to the customer's special requirements.

Third Party Test Report

Production Process

Fused Silica 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 a very useful and versatile material for refractory applications, such as aluminum launders or other highly cyclical applications.

At Lianyungang Chemsize International Trading Co., Ltd., we strictly choose high purity silica sand (SiO2>99%) from local Donghai/Xinyi 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. We further process the products into fused silica lumps, sand, and powder according to our customers' requirements.

Detailed Photos

Fused Silica High Clear Pictures:

Discover the exceptional quality of our Foundry Fused Silica Flour. Made from amorphous silicon oxide, this quartz refractory material is perfect for investment casting and castables. With its high clarity and refined texture, it is the ideal choice for various applications in the foundry industry. Choose our Fused Silica Flour for outstanding results.

Packaging & Shipping

Product Name: Foundry Fused Silica Flour

Description: Our Fused Silica Flour is packaged in a 25kg net plastic woven bag, which is then placed on a pallet for convenient delivery. This high-quality product is perfect for various applications in the foundry industry.

Explore our Fused Silica Factory and Quality Control Pictures at Lianyungang Chemsize International Trading Co., Ltd. We offer Foundry Fused Silica Flour, a high-quality quartz refractory material for investment casting and castables. Our product is made from amorphous silicon oxide and is available in various forms such as grains, lumps, and powder. Choose our Fused Silica Flour for your foundry needs.

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:

• It is forbidden to contain any unfused parts.


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


• All color dots are forbidden except conditional black dots.


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


• 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 firstly 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 loss.

Any questions, kindly contact us please!

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