High-Strength Ceramic Fiber Inorganic Refractory Board

The high-strength ceramic fiber inorganic refractory board is a premium-grade refractory and thermal insulation board, manufactured using high-quality ceramic fiber as the primary base material combined with high-performance inorganic binders and cured through specialized processes. This product integrates lightweight properties, high strength, excellent high-temperature resistance, and superior thermal insulation performance, while also offering strong chemical stability and environmental safety. It serves as an ideal advanced material for thermal insulation in high-temperature industrial equipment and furnaces.

Utilizing a fully inorganic formulation, the product is non-combustible, non-toxic, and free of volatile organic compounds, fully complying with modern industrial requirements for energy efficiency, environmental protection, and production safety. It effectively replaces traditional heavy refractory bricks while providing lightweight and high-efficiency thermal insulation solutions for various high-temperature applications.

Product Composition and Structure

Ceramic Fiber Base Material

Selected from high-purity alumina-silicate ceramic fibers (yarn or felt) with uniform fineness and stable structure, providing exceptional high-temperature resistance and thermal insulation performance.

Inorganic Binder System

A specially formulated high-temperature inorganic binder is used, maintaining stable bonding strength across a full temperature range from ambient to high temperatures, ensuring structural integrity without cracking or powdering under long-term thermal loads.

Functional Fillers and Reinforcement Materials

Lightweight aggregates, refractory fibers, and other functional fillers are scientifically proportioned based on performance requirements, precisely adjusting the board's density and mechanical properties. Certain models incorporate high-temperature-resistant fiber mesh or filaments, significantly enhancing overall mechanical strength, flexural resistance, and impact resistance.

Technical Specifications and Parameters

Core Advantages of High-Strength Ceramic Fiber Inorganic Refractory Board

Exceptional High-Temperature Performance

Long-term service temperature ranging from 1000°C to 1300°C, with stable structure, low thermal shrinkage, and maintained superior insulation properties under high temperatures.

Combination of High Strength and Lightweight Design

Flexural and compressive strength significantly exceed that of traditional ceramic fiber products, while the density is only 1/5 to 1/8 that of refractory bricks, greatly reducing equipment load.

High-Efficiency Thermal Insulation

Thermal conductivity as low as 0.12 W/(m·K) at 600°C, effectively blocking heat conduction, reducing thermal energy loss, and improving energy efficiency by 15–30%.

Fully Inorganic, Eco-Friendly, and Safe

Free of organic binders and harmful gas emissions, compliant with GB 8624 Class A non-combustible standards and EU environmental directives, suitable for clean and demanding environments.

Excellent Chemical Stability

Resistant to acid and alkali corrosion, with strong thermal shock resistance, adaptable to complex industrial atmospheres. Service life extends up to 3–5 years, depending on operating conditions.

Easy Installation and Cost-Effectiveness

Easy to cut, drill, and rivet, supporting irregular-shaped installations, reducing construction time by over 30%, and lowering overall maintenance costs.

Versatile Application Compatibility

Combines thermal insulation, fire resistance, and structural reinforcement functions, capable of replacing traditional multi-layer insulation structures and enabling optimized system design.

Application Fields

With its outstanding high-temperature resistance, superior thermal insulation efficiency, and stable chemical properties, this product is widely used in the following key industrial sectors:

Metallurgical Industry: Suitable for furnace wall insulation and linings in blast furnaces, hot blast stoves, converters, electric furnaces, and other high-temperature kilns, effectively reducing heat dissipation and improving thermal energy utilization.

Petrochemical Industry: Used for thermal insulation and protection of reactors, cracking furnaces, storage tanks, pipelines, and heat exchangers, ensuring safe and stable operation under high-temperature and high-pressure conditions.

Power and Energy: Serves as insulation for boiler walls, flues, steam pipelines, and various thermal equipment, significantly reducing heat loss and supporting system energy conservation.

Machinery Manufacturing: Widely applied in industrial kilns such as heat treatment furnaces, forging heating furnaces, and annealing kilns, enabling precise temperature control and efficient insulation.

Aerospace and Aviation: Used for insulation in engine compartments, thermal protection for exhaust systems, and high-temperature component protection in spacecraft, meeting lightweight and high-reliability requirements in extreme environments.

Construction and Engineering: Applied in building fire protection systems, fire barriers, high-temperature pipe cladding, and fire-resistant insulation for specialized industrial plants, combining safety protection with energy-saving benefits.

About Us

Our company was founded in 1993 and is a leading enterprise specializing in the research, development, and production of high-performance insulation materials. We operate under the officially registered trademark "SUNTHERM," approved by the National Trademark Office. The brand name embodies our core values: "SUN" symbolizes sustainability and environmental responsibility, while "THERM" represents our commitment to exceptional service and continuous innovation.

The SUNTHERM production base is located in Shandong, covering an area of 180,000 square meters and equipped with 46 advanced production lines, with an annual production capacity of 600,000 tons. Through the use of cutting-edge equipment, optimized production processes, and energy-saving technologies, we are dedicated to providing high-quality, customized product solutions. In addition to material production, the company independently designs and manufactures production lines and maintains an independent R&D team focused on product innovation and process technology enhancement.

SUNTHERM's main product lines include ceramic fibers, bio-soluble fibers, rock wool, and next-generation fiber materials, specifically including ceramic fiber blankets, boards, paper, and complete rock wool production lines. These materials are widely used in industrial kilns, household appliances, pipeline insulation, stove ovens, energy storage systems, and HVAC applications.

With continuous global expansion, SUNTHERM products are now exported to over 80 countries and regions, including Europe, North America, the Middle East, Southeast Asia, and Latin America, earning widespread recognition in international markets for their superior quality and professional service.

FAQ

Q1: What are the long-term and short-term temperature resistance capabilities of this product?

A1: The product can operate stably at 1260°C for extended periods and withstand short-term exposure to temperatures around 1300°C. This makes it suitable for most high-temperature industrial applications.

Q2: Does the mechanical strength of the board meet the insulation requirements of equipment? Can it be used in load-bearing areas?

A2: The product typically has a room-temperature compressive strength of no less than 2.0 MPa, with excellent compressive and flexural properties, meeting the structural needs of industrial equipment insulation. However, please note that this board is primarily designed for thermal insulation and is not recommended for direct use as a structural load-bearing material.

Q3: Does the product offer moisture resistance?

A3: The product is formulated with low moisture absorption, with a water absorption rate below 5%, providing a certain level of moisture resistance for use in humid environments. However, it is recommended to avoid long-term immersion or continuous exposure to highly humid conditions to ensure stable performance.

Q4: Are custom sizes and specifications supported?

A4: Yes, we support customized production. We can provide specifications in different thicknesses, lengths, and widths based on your actual needs. Custom cutting according to drawings is also available to meet diverse engineering application requirements.

Q5: Does the board have fire resistance certification?

A5: Yes, the product has been tested by the National Center for Quality Supervision and Testing of Fireproof Building Materials and complies with the GB 8624-2012 Class A non-combustible material standard. It is suitable for construction and industrial scenarios with stringent fire resistance requirements.

Q6: What should be noted during installation and construction?

A6: It is recommended to carry out installation in a dry environment. Use specialized cutting tools for trimming, and employ overlapping or joint-sealing methods between boards to minimize thermal bridging. High-temperature anchors or adhesives are recommended for fixation, ensuring that joints are properly sealed to optimize overall insulation performance. Construction personnel should wear protective masks and gloves, and maintain proper ventilation in the work area.

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