We are Lianyungang Chemsize International Trading Co., Ltd., a leading manufacturer of clean fused silica sand for investment casting processes. Our high-quality and durable fused silica grains, flour, and powder are perfect for investment casting applications. Choose our premium quarzglas products for consistent and reliable results.

Grade A Fused Silica Sand & Powder Specifications

Our Clean Fused Silica Sand is perfect for investment casting processes. It is a high-quality, durable, and heat-resistant material that ensures consistent and reliable results. Choose from a range of sizes and forms, including grains, flour, powder, lumps, and cullet. Our versatile and cost-effective solution is ideal for various casting applications.

Introducing our Clean Fused Silica Sand for Investment Casting Processes. Our high-quality silica sand is perfect for investment casting, offering durability and heat resistance. Choose from a range of sizes and enjoy consistent, reliable quality. Explore our versatile fused silica products today!

Fused Silica

Product Description: Fused Silica is a high-quality material with a low coefficient of thermal expansion, consistent chemistry, and carefully controlled particle size distribution. It is widely used in various industries such as thermal ceramic, refractory, investment casting, EMC, solar crucible, quartz marble, and powder coating.

Special Feature: Fused Silica is known for its extremely low coefficient of thermal expansion, ensuring stability and reliability in various applications.

Particle 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

Customization: Particle sizes can be produced according to customer's special requirements.

Company: Lianyungang Chemsize International Trading Co., Ltd.

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 or 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 region 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 the specific requirements of our customers.

Product Name: Clean Fused Silica Sand for Investment Casting Processes

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

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Description: Our Clean Fused Silica Sand is specially designed for investment casting processes. With its high clarity and purity, it ensures excellent casting results. Choose our premium quality fused silica sand for reliable and cost-effective casting solutions.

Our Clean Fused Silica Sand is perfect for investment casting processes. It comes in a 25kg net plastic woven bag and is delivered on a pallet. Trust Lianyungang Chemsize International Trading Co., Ltd. for high-quality fused silica sand.

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 loss.

Any questions, kindly contact us please!

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