Lightweight Refractory Cement is a specially formulated high-temperature bonding and repair material designed for applications where thermal insulation, reduced lining weight, and reliable refractory performance are required. It is manufactured from carefully selected lightweight refractory aggregates, alumina-based raw materials, and high-temperature-resistant binders to provide stable bonding performance under elevated temperatures.
Compared with conventional dense refractory cement, Lightweight Refractory Cement offers lower bulk density and reduced thermal conductivity, helping minimize heat loss and heat storage in furnace and kiln linings. Its lightweight structure also reduces the overall weight of refractory construction, making it suitable for insulation layers, lightweight refractory assemblies, joint filling, sealing, and repair applications.
Lightweight Refractory Cement can be used with refractory bricks, lightweight insulation bricks, ceramic fiber products, castables, and other compatible refractory materials. It is widely applied in industrial furnaces, kilns, boilers, incinerators, heat-treatment equipment, chimneys, and other high-temperature thermal systems.
Physicochemical Parameters
| Items | HTFC-1300 | HTFC-1400 | HTFC-1500 | HTFC-1600 |
|---|---|---|---|---|
| Al₂O₃ (%) | ≥40 | ≥45 | ≥50 | ≥55 |
| Fe₂O₃ (%) | ≤2.5 | ≤2.5 | ≤2.0 | ≤2.0 |
| Bulk Density (g/cm³) | ≥1.8 | ≥1.9 | ≥2.0 | ≥2.1 |
| Cold Crushing Strength (MPa) | ≥8 | ≥10 | ≥12 | ≥15 |
| Refractoriness (°C) | ≥1300 | ≥1400 | ≥1500 | ≥1600 |
| Bonding Strength (MPa) | ≥1.0 | ≥1.2 | ≥1.5 | ≥1.8 |
| Working Temperature (°C) | ≤1300 | ≤1400 | ≤1500 | ≤1600 |
Product Features
- Lightweight Structure: Lower bulk density reduces the dead weight of furnace and kiln linings, making Lightweight Refractory Cement suitable for lightweight refractory construction and insulation systems.
- Low Thermal Conductivity: The lightweight formulation helps reduce heat transfer, heat loss, and heat storage, improving the thermal efficiency of high-temperature equipment.
- Good Thermal Insulation: Provides effective insulation performance when used as part of furnace backup linings, insulation layers, and lightweight refractory assemblies.
- High Temperature Resistance: Selected refractory raw materials and high-temperature binders allow stable performance under operating temperatures of approximately 1150–1350°C, depending on grade.
- Good Thermal Shock Resistance: The lightweight structure helps accommodate repeated heating and cooling cycles while maintaining dimensional stability.
- Stable Volume: Controlled formulation and low permanent linear change help reduce excessive shrinkage and dimensional instability during service.
- Adequate Mechanical Strength: Although designed primarily for insulation, different grades provide sufficient strength for their intended refractory bonding, filling, and lining applications.
- Easy Installation: Depending on the formulation and project requirements, the material can be applied by suitable casting, bonding, patching, or gunning methods.
- Flexible Application: Suitable for refractory brick joints, insulation layers, furnace repairs, sealing, and lightweight refractory construction.
- Customizable Formulation: Density, thermal conductivity, strength, alumina content, and service temperature can be adjusted according to specific operating conditions.
Applications
Lightweight Refractory Cement is used in a variety of high-temperature equipment and thermal insulation applications, including:
- Industrial Furnaces: Used for lightweight refractory construction, insulation layers, joint filling, and maintenance of furnace linings.
- Ceramic Kilns: Suitable for insulation and refractory bonding applications in tunnel kilns, shuttle kilns, roller kilns, and other ceramic firing equipment.
- Heat Treatment Furnaces: Helps provide thermal insulation and lightweight refractory protection in equipment exposed to repeated heating and cooling cycles.
- Boilers: Used in selected refractory and insulation areas of industrial boilers to help reduce heat transfer and lining weight.
- Incinerators: Suitable for insulation layers and refractory repair applications in waste and industrial incineration equipment.
- Glass Furnaces: Can be used in appropriate insulation and backup lining areas where low thermal conductivity and lightweight construction are required.
- Chimneys and Flues: Applied for heat-resistant sealing, joint filling, and insulation in high-temperature gas-handling systems.
- Industrial Heating Equipment: Suitable for furnaces, heaters, thermal chambers, and other equipment requiring lightweight refractory insulation.
- Refractory Repair: Used for filling joints, sealing gaps, repairing suitable damaged areas, and maintaining lightweight refractory structures.
The appropriate grade should be selected according to the maximum operating temperature, required density, thermal conductivity, mechanical loading, refractory substrate, installation method, and chemical environment.
Customization Services
Xintai Refractory provides different grades of Lightweight Refractory Cement for industrial furnace and thermal equipment applications. Customized formulations can be developed according to:
- Required maximum service temperature
- Target bulk density
- Thermal conductivity requirements
- Alumina content
- Cold crushing strength
- Permanent linear change
- Thermal shock conditions
- Refractory substrate
- Application method
- Furnace operating conditions
- Chemical corrosion environment
- Packaging requirements
For large industrial projects, Xintai can also provide customized particle grading, formulation, packaging, and technical specifications according to customer requirements.
Packing and Shipping Details
- Packing: Available in moisture-resistant bags, buckets, or other suitable containers according to product formulation and customer requirements.
- Standard Packaging: Common industrial packaging can be supplied for regular orders.
- Customized Packaging: Private labeling, customized bag sizes, and project-specific packaging can be provided upon request.
- Storage: Store in a dry, cool, and well-ventilated location. Protect the product from moisture and keep packaging properly sealed before use.
- Shipping: Suitable for sea, air, and road transportation depending on order quantity and destination.
- Export Service: Professional export packaging and documentation can be provided for international orders.
About Xintai Refractory
Xintai Refractory is a professional manufacturer and supplier of refractory materials and high-temperature solutions. With more than 20 years of experience in refractory production, Xintai supplies high alumina bricks, fireclay bricks, insulation bricks, refractory cement, castables, and other customized refractory products.
Xintai Refractory serves customers in steel, cement, ceramic, glass, chemical, non-ferrous metal, and other high-temperature industries. With factory-direct manufacturing, strict quality control, customized formulations, and international delivery capabilities, Xintai provides refractory materials for industrial furnace construction, thermal insulation, maintenance, and repair.
Contact Xintai Refractory today for Lightweight Refractory Cement specifications, factory pricing, samples, customized formulations, and technical solutions for your high-temperature application.
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