Mullite Sand and Powder
High-temperature resistant mullite sand and powder with excellent thermal stability up to 1770–2000°C, available in 10–200 mesh. Widely used in refractory materials, precision casting, foundry applications and high-temperature industrial production.
- Overview
- Recommended Products
- 10‑20 Mesh
- 20‑40 Mesh
- 40‑70 Mesh
- 70‑100 Mesh
- 100‑200 Mesh
- Customized particle sizes
- High‑temperature resistance
- Excellent thermal stability
- Low thermal expansion
- Good chemical resistance
- Multiple mesh sizes from 10‑200 mesh
- Available in sand and powder forms
- Suitable for refractory applications
- Suitable for precision casting
- Stable quality control
- Customized specifications available
- Professional export packaging
- Bulk supply capability
Product Description
High Temperature Mullite Sand and Powder for Refractory Materials and Precision Casting
Mullite Sand and Powder is a high‑performance refractory material widely used in high‑temperature industrial applications. Our Mullite Sand and Powder features excellent thermal stability, high refractoriness, low thermal expansion, good chemical resistance and reliable mechanical strength. With high temperature resistance ranging from approximately 1770°C to 2000°C depending on grade and application conditions, Mullite Sand and Powder is an important raw material for refractory materials, precision casting, foundry applications, kiln furniture and other high‑temperature industrial processes.
Our Mullite Sand and Powder is produced from carefully selected raw materials and processed through crushing, calcination, grinding and screening. The product is available in different particle sizes ranging from 10 mesh to 200 mesh, including both coarse mullite sand and fine mullite powder. This wide particle size range allows customers to select suitable Mullite Sand and Powder specifications according to different production processes and application requirements.
As a stable aluminum silicate refractory material, Mullite Sand and Powder is known for its excellent performance under high‑temperature conditions. It can maintain structural stability during heating and cooling processes, making it suitable for demanding industrial environments. Compared with many ordinary mineral materials, Mullite Sand and Powder offers better resistance to thermal shock and high‑temperature deformation.
The combination of high refractoriness, stable chemical properties and controlled particle size makes Mullite Sand and Powder suitable for manufacturers of refractory products, investment casting materials and industrial ceramics. Different grades and particle sizes can be supplied according to customer requirements.


Product Advantages
Excellent High Temperature Resistance
One of the most important advantages of Mullite Sand and Powder is its excellent resistance to high temperatures. The material can be used in industrial applications involving temperatures of approximately 1770°C to 2000°C, depending on the specific composition and working environment.
High‑temperature industrial processes require raw materials with stable performance. Mullite Sand and Powder can help maintain material integrity and reduce performance changes under extreme heat. This makes Mullite Sand and Powder suitable for refractory bricks, furnace linings, kiln materials and other high‑temperature products.
Good Thermal Stability
Mullite Sand and Powder has excellent thermal stability and can perform reliably during repeated heating and cooling cycles. Sudden temperature changes can cause cracking or structural damage in ordinary materials, while mullite‑based materials provide improved resistance to thermal shock.
Because of this characteristic, Mullite Sand and Powder is widely used in refractory applications where materials are frequently exposed to temperature fluctuations.
Low Thermal Expansion
Another important advantage of Mullite Sand and Powder is its relatively low thermal expansion. Low thermal expansion helps reduce dimensional changes during high‑temperature processing.
This characteristic is particularly important in precision casting and refractory manufacturing. The use of Mullite Sand and Powder can help improve the dimensional stability of finished products under high‑temperature conditions.
Good Chemical Stability
Mullite Sand and Powder offers stable chemical properties and good resistance to many industrial processing environments. The material can maintain stable performance when used in refractory systems and high‑temperature production processes.
The chemical stability of Mullite Sand and Powder makes it suitable for applications involving molten materials, high‑temperature gases and demanding industrial conditions.
High Mechanical Strength
High‑quality Mullite Sand and Powder can provide good mechanical strength for refractory and casting applications. The material can contribute to the structural stability and durability of finished industrial products.
Depending on the formulation and application process, Mullite Sand and Powder can be used as an important aggregate, filler or refractory raw material.
Product Specifications
| Item | Specification |
|---|---|
| Product Name | Mullite Sand and Powder |
| Material | Mullite |
| Particle Size | 10–200 Mesh |
| Form | Sand and Powder |
| Color | White, Off‑White or Light Gray |
| Refractoriness | Approximately 1770‑2000°C |
| Main Components | Al₂O₃ and SiO₂ |
| Thermal Stability | Excellent |
| Thermal Expansion | Low |
| Chemical Stability | Good |
| Application | Refractory, Precision Casting, Foundry |
| Packaging | 25 kg/Bag or Customized |
| Customization | Available |
Different grades of Mullite Sand and Powder can be supplied according to particle size, chemical composition and industrial application requirements.
Particle Size Options
Our Mullite Sand and Powder is available in multiple mesh sizes to meet different industrial requirements. Common particle sizes include:
Coarse Mullite Sand and Powder is commonly used as refractory aggregate and casting material, while finer Mullite Sand and Powder can be used in coatings, precision casting shells and refractory formulations.
Uniform particle size distribution is important for stable production performance. Our processing system can provide controlled screening and classification to help meet customer specifications.
Applications of Mullite Sand and Powder
Refractory Materials
Mullite Sand and Powder is widely used in the production of refractory materials. Due to its excellent high‑temperature resistance and thermal stability, it can be used in refractory bricks, refractory castables, furnace linings and kiln materials.
The addition of Mullite Sand and Powder can help improve the high‑temperature performance and structural stability of refractory products. Manufacturers can select different particle sizes according to specific refractory formulations.
Precision Casting
In the precision casting industry, Mullite Sand and Powder is an important material for investment casting shells and casting molds. Its thermal stability and resistance to high temperatures make it suitable for metal casting processes.
Fine Mullite Sand and Powder can be used in casting slurry and coating systems, while coarser grades can be used in backup layers. The material helps provide stable performance during the casting process.
Foundry Industry
Mullite Sand and Powder is also suitable for various foundry applications. It can be used in casting molds, cores, refractory coatings and other high‑temperature foundry processes.
The heat resistance of Mullite Sand and Powder helps it maintain stable performance when exposed to molten metal and high‑temperature operating conditions.
Industrial Ceramics
High‑temperature industrial ceramics can also use Mullite Sand and Powder as an important raw material. Mullite‑based materials are valued for their thermal stability and mechanical properties.
Different grades of Mullite Sand and Powder can be incorporated into ceramic formulations according to production requirements.
Kiln Furniture and Furnace Applications
Because of its excellent refractory properties, Mullite Sand and Powder can be used in the production of kiln furniture and furnace components.
The material helps support stable operation under high‑temperature conditions and is suitable for industrial furnaces used in ceramics, metallurgy and other manufacturing industries.
Production Process
The production of Mullite Sand and Powder begins with the selection of suitable high‑quality raw materials. The materials are processed under controlled conditions to produce stable mullite structures with reliable refractory performance.
After calcination or high‑temperature treatment, the material is crushed into smaller particles. The crushed material is then processed through grinding equipment to produce different grades of Mullite Sand and Powder.
Screening and classification are important stages in the production process. These processes help ensure that the final Mullite Sand and Powder meets the required particle size range from 10 mesh to 200 mesh.
Quality control procedures are carried out during production to monitor particle size, chemical composition, appearance and other important properties. This helps provide stable quality for industrial customers.
Why Choose Our Mullite Sand and Powder?
We focus on supplying reliable industrial mineral materials for refractory, casting and high‑temperature applications. Our Mullite Sand and Powder is processed with attention to particle size consistency, thermal stability and product quality.
Our advantages include:
Whether you are manufacturing refractory bricks, refractory castables, precision casting shells or industrial ceramic products, our Mullite Sand and Powder can provide a reliable raw material solution.
Packaging and Supply
Our Mullite Sand and Powder is normally packed in strong bags suitable for industrial storage and international transportation. Standard packaging options include 25 kg bags, while customized packaging can also be provided according to customer requirements.
For bulk orders, pallet packaging and customized loading methods are available. We can supply Mullite Sand and Powder to manufacturers, distributors, importers and industrial material companies worldwide.
Different particle sizes from 10 mesh to 200 mesh can be customized according to specific application requirements.
Conclusion
Mullite Sand and Powder is a reliable high‑temperature refractory material with excellent thermal stability, low thermal expansion and good chemical resistance. With available particle sizes ranging from 10 to 200 mesh and high‑temperature resistance of approximately 1770°C to 2000°C depending on grade and application conditions, Mullite Sand and Powder is widely used in refractory materials, precision casting, foundry production, industrial ceramics and other high‑temperature applications.
High‑quality Mullite Sand and Powder can help manufacturers improve the stability and performance of refractory and casting products. With multiple particle sizes, customized specifications and bulk supply options, our Mullite Sand and Powder is designed to meet the requirements of different industrial customers worldwide.
We welcome inquiries for customized mesh size, chemical composition, packaging and bulk purchasing requirements.