Silica Quartz Marble for Epoxy Molding Compound

• 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.: 0-1mm, 1-3mm, 3-5mm, 5-8mm, 200mesh, 325mesh
• 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

Discover top-quality fused silica sand and powder from Lianyungang Chemsize International Trading Co., Ltd. for superior service and quality!

Product Description

Grade A Fused Silica sand & powder for epoxy molding compound. High purity silica material for various applications. Supplier: Lianyungang Chemsize International Trading Co., Ltd.

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

Discover Silica Quartz Marble for Epoxy Molding Compound from Lianyungang Chemsize. High purity silica sand with amorphous silicon dioxide for various 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

Pan designates the percentage of fused silica passing the last reported screen for each size.

Special Features:

• Extremely low coefficient of thermal expansion


• Consistent chemistry


• Carefully controlled particle size distribution

Applications:

• Thermal ceramic


• Refractory


• Investment casting


• EMC


• Solar crucible


• Quartz marble


• Powder coating

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

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 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.

Raw Material

We source high purity silica sand (SiO2 > 99%) from Donghai/Xinyi for our production process.

Manufacturing Process

The silica sand is melted at high temperatures (2000-2300 ºC) to form an amorphous silicon dioxide glassy ingot, which is then cooled. The ingot is further processed into fused silica lump, sand, and powder based on customer requirements.

Company Information

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

Detailed Photos

Fused Silica high clear Pictures for epoxy molding compound. Silica quartz marble with 99% purity, ideal for jewelry molds and refractory induction furnaces.

Packaging & Shipping

Fused Silica Plastic Woven Bag of 25kg Net each, then on Pallet. Ideal for Epoxy Molding Compound packaging and delivery.

Fused Silica Factory and Quality Control Pictures

Explore our facility and quality control process at Lianyungang Chemsize International Trading Co., Ltd. We specialize in Silica Quartz Marble for Epoxy Molding Compound.

Fused Silica Product Description

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 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.


• 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

Lianyungang Chemsize International Trading Co., Ltd. is a leading manufacturer of Fused Silica grains and powders. Our Fused Silica materials are used in various industries such as Refractory, Investment Casting, Technical Ceramic, and EMC filler applications. With a fusion ratio of up to 99.9% Amorphous SiO2, low iron content (30ppm max), and minimal impurities, our Fused Silica offers low thermal expansion, high thermal shock resistance, and low electrical conductivity.

Our unique electric-arc fusion technique ensures the production of high-quality Fused Silica with over 99.9% SiO2 purity. This amorphous material has excellent chemical stability, extremely low conductivity, and is ISO-certified. Chemsize Fused Silica is specially engineered for foundry, refractory, investment casting, and other specialized applications.

Applications of Fused Silica include crucibles for solar cell production, rollers in the glass industry, technical ceramics, and ceramic slurry for investment casting. Our products range from precast shapes to ramming mixes, catering to various industrial needs.

For investment casting, our Teco-Sil offers volume stability and tight tolerance castings due to its low thermal expansion coefficient. We provide standard packaging in 25kg bags, 48 bags per pallet, or jumbags with a net weight of 1200kgs, and can customize shipments for bulk orders.

Choose Chemsize Fused Silica for superior performance in high-temperature applications, thermal resistance, and insulative properties. Experience the quality and reliability of our fused silica products for your industrial needs.

Chemsize Fused Silica

Welcome to Chemsize Fused Silica

Introducing Chemsize Fused Silica, a leading supplier of raw materials and machinery for investment casting processes for over 30 years. Our Fused Silica flour offers numerous advantages:

• 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 process


• Consistent quality and sustainability


• Competitive pricing at US$0.56/kg FOB LIANYUNGANG PORT

Fused Silica Applications

Our Fused Silica is ideal for induction furnace lining ramming material. It is suitable for various applications in medium frequency furnaces, including melting iron, steel, stainless steel, aluminum, copper, and other alloys.

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 for samples and bulk orders?

A: Samples can be sent within 3-5 days, while bulk orders typically ship within 15 days for quantities up to 100mt.

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 goods shipped and what is the delivery time?

A: Goods are shipped promptly, and delivery times vary based on location.

Contact us at Lianyungang Chemsize International Trading Co., Ltd. for all your Fused Silica needs!