Refractory Ceramic Fiber Board

The Refractory Ceramic Fiber Board is a specialized, high-performance rigid insulation engineered for the most demanding thermal environments. As a type of ceramic fiber board, it is manufactured through a precise vacuum-forming process that combines high-purity alumino-silicate fibers with inorganic binders. This creates a smooth-faced, dimensionally stable slab with a typical density of 280–400 kg/m³. Designed to withstand continuous use at 1000°C and short-term peaks up to 1260°C, it offers a unique combination of low thermal conductivity, minimal heat storage, and exceptional resistance to thermal shock. Sunjoy provides this high-quality refractory solution, backed by extensive customization options to meet your exact specifications.

 

 

Refractory Ceramic Fiber Board Advantages

Lightweight & Rigid: With a density significantly lower than firebrick, it is easy to handle, cut, and install, while maintaining excellent structural integrity for vertical and overhead applications.

Superior Thermal Insulation: Its ultra-low thermal conductivity (as low as 0.12 W/(m·K) at 600°C) effectively blocks heat transfer, reducing energy consumption and lowering equipment surface temperatures for safer operation.

Excellent Thermal Shock Resistance: The fibrous structure withstands rapid heating and cooling cycles without cracking or spalling, vastly extending service life in batch processes.

Low Heat Storage: Minimal heat absorption allows for faster furnace heating and cooling cycles, improving process efficiency and saving energy.

Chemical Stability: Resistant to many chemicals and does not react with most metals, ensuring reliable performance in various industrial atmospheres.

Sound Absorption: The fibrous matrix also provides effective noise reduction, contributing to a better working environment.

 

Refractory Ceramic Fiber Board Application

Metallurgy & Heat Treating: As backup insulation or hot-face linings in heat treatment furnaces, forging furnaces, and annealing ovens.

Ceramic & Glass Industries: For lining kiln walls, roofs, kiln cars, and as heat shields in glass tanks and lehrs.

Petrochemical & Power Generation: Insulation for reformers, cracking furnaces, boilers, flues, and high-temperature ductwork.

General High-Temp Equipment: Fabrication of custom gaskets, expansion joints, and linings for burners, laboratory furnaces, and exhaust systems.

Fire Protection: Used as core material in fire doors and fire barriers for passive fire safety in construction.

 

Refractory Ceramic Fiber Board Custom Service

Dimensions: We can cut boards to non-standard lengths, widths, and thicknesses.

Density: Boards can be manufactured in different densities to balance strength and insulation needs.

Shapes: Precision-cutting of complex shapes such as circles, tapered sections, arches, and drilled hole patterns for anchors or feed-throughs.

Grades: We supply all common grades from 1000°C up to 1430°C to match your exact temperature requirements.

 

Refractory Ceramic Fiber Board Performance

• High-purity alumino-silicate fiber 
• Vacuum-formed with inorganic binder
• Density 280–400 kg/m³ 
• Smooth, rigid surface
• Continuous use 1 000 °C; peak 1 260 °C 
• Low thermal conductivity 0.12 W/(m·K)  600 °C 
• Low heat storage, thermal-shock resistant

 

Refractory Ceramic Fiber Board Specification

ltem	Unit	Index
Density	kg/m3	280/300
Thickness	mm	25/50
Length	mm	600/900/1000/1200
Width		400/600/900/1000

1260 ceramic fiberboard has high heat resistance. The technical data of the fire-resistant ceramic fiberboard is as follows: 

We can provide 1000, 1260, 1360, and 1430 ceramic fiberboards.

 

 

Refractory Ceramic Fiber Board Technical Data

Description		COM	STD	HP	HA	HA
Classification Temperature(℃)		1000	1260	1260	1360	1430
Working Temperature (℃)		＜1000	1050	1100	1200	1350
Color		white	white	white	white	white
Density(kg/m3)		96-128	96-128	96-128	128-160	128-160
Shrinkage(%)of heating 24hours		-4	-3	-3	-3	-3
(as density 128 kg/m3)		(1000°C)	(1000°C)	(1000°C)	(1250°C)	(1350°C)
Thermalconductivity(wm.k)  (Density128 kgs/ m3)		0.09(400°C)	0.09(400°C)	0.09(400°C)	0.12(600°C)	0.16(800°C)
			0.16(800°C)	0.16(800°C)	0.20(1000°C)	0.20(1000°C)
Tensile strength (MPa)		0.04	0.04	0.04	0.04	0.04
(density as 128kg/m3)
Chemical composition %	AL2O3	44	46	47-49	52-55	39-40
	AL2O3 & SIO2	96	97	99	-	-
	AL2O3 & SIO2& ZrO2	-	-	-	99	99
	ZrO2	-	-		15-17	15-17
	Fe2O3	<1.0	<1.0	0.2	0.2	0.2
	Na2O & K2O	≤0.5	≤0.5	0.2	0.2	0.2

 

Packaging

Standard Packaging: Boards are stacked flat on sturdy pallets with protective interleaving between each board to prevent surface damage. The stack is then securely wrapped with heavy-duty stretch film and reinforced with strapping bands for stability during transit.

Customized Packaging: For fragile or high-value grades, or for projects with specific logistics needs, we can design custom packaging solutions, such as weather-proof wrapping or individual board protection, to guarantee product integrity.

 

Refractory Ceramic Fiber Board Supplier Strength | Sunjoy

Scale & Experience: We operate 15 advanced production lines across multiple facilities and employ over 1,000 people, including more than 200 R&D and technical staff.

Certified Quality: Our commitment to quality is validated by international certifications including ISO9001, ISO14001, ISO45001, and CE marks for our products.

Global Track Record: We are a trusted supplier to major state-owned enterprises (like China State Construction) and have successfully delivered projects across Southeast Asia, South America, and the Middle East.

Comprehensive Support: From free samples and pre-sales technical consultation to after-sales service, our team provides professional, one-on-one support throughout your project.

 

Ceramic Fiber Board: The Unsung Hero in High-Temperature Industrial Realms

In the industrial arena where peak efficiency and safety are paramount, one material often operates silently yet indispensably – Ceramic Fiber Board. Far from ordinary insulation, it's a robust barrier embodying modern materials science. Let's move beyond cold specs and explore the story behind this "tough board," seeing how it excels in the fiery world of heat.

 

I. Crafted with Ingenuity: From Soft Fiber to Rigid Board

Imagine dispersing ultra-fine ceramic fibers (primarily alumina and silica) uniformly in water, much like papermaking, to form a slurry. But that's just the start. The real magic happens during vacuum forming. Workers draw this slurry into molds equipped with filter screens. Powerful suction rapidly removes water, while the fibers are densely "woven" together. To give it sufficient backbone, it undergoes precisely controlled high-temperature drying and curing. This process resembles ceramic firing but with finer temperature control. It must activate organic binders to firmly lock the fibers in place without compromising their inherent properties. The result? Uniform, flat-surfaced boards possessing remarkable rigidity and strength for their weight. Holding one, you feel its surprising lightness coupled with impressive toughness.

 

II. Innate Material: The "Soft Armor" for Hot Zones

The "core" of ceramic fiber board is carefully selected and processed ceramic fibers. Fine as hair, these fibers possess astonishing heat resistance (typically effortlessly handling 1260°C or higher). Crucially, their interwoven structure creates countless microscopic "air pockets." This trapped, static air is an exceptional thermal insulator. Think of it as intricately crafted "soft armor" – hard on the outside, filled with heat-blocking "air barriers" within. This unique architecture bestows an exceptional combination of properties.

 

III. Standout Performance: Beyond Just Heat Resistance

Featherlight: Its density is typically only 1/4 to 1/3 that of traditional firebrick. This translates to easier installation, significantly reduced structural support requirements, and less "weight" burden for engineers designing high-temperature equipment.

Insulation Champion: Ultra-low thermal conductivity is its signature strength. It acts like a formidable thermal barrier, effectively blocking heat transfer. This significantly lowers equipment skin temperatures, boosting thermal efficiency, saving energy, and creating safer, more comfortable working environments. Workers appreciate not burning their hands on hot surfaces.

Unfazed by Thermal Shocks: Picture the rapid temperature swings from frequently opening furnace doors? Ceramic fiber board stays "cool." Its fibrous structure grants superb thermal shock resistance. It withstands drastic heating and cooling cycles without cracking or spalling, vastly extending service life. A boon for batch-processing furnaces.

Surprisingly Sturdy: The specialized forming process gives it notable mechanical strength and rigidity. Compared to soft ceramic fiber blankets, it's easier to cut and install. It can be used vertically or horizontally, withstands moderate gas flow, and can even serve as a load-bearing liner or baffle at high temperatures. In the furnace, it holds its ground reliably.

The Quiet Contributor (Bonus!): Often overlooked, it offers good sound absorption. Reducing noise pollution in high-temperature environments is another way it contributes to better working conditions.

 

IV. Where It Shines: The Ubiquitous High-Temperature Guardian

Thanks to these stellar properties, ceramic fiber board is indispensable across numerous high-temperature industries:

The "Personal Guard" for Industrial Furnaces: Whether it's heat treatment or forging furnaces in metallurgy, roller hearth or tunnel kilns in ceramics, or melting tanks and annealing lehrs in glass, you'll find it lining furnace walls, roofs, doors, and kiln cars as insulation backing or hot-face material. It conserves heat and protects efficiency.

Reliable Ally in Petrochemicals & Power: Within cracking furnaces, reformers in petrochemical plants, and boilers, ducts, and hot gas ducts in power stations, it provides critical thermal insulation and fire protection. Imagine the energy waste and safety risks of uninsulated hot pipes.

Precision Lining for High-Temp Equipment: Its machinability makes it ideal for complex-shaped linings in heat treatment equipment, lab furnaces, burners, high-temperature valves, and exhaust systems, ensuring efficient and safe operation. Designers value its workability.

Backbone of Fire Safety: In construction, it serves as fire door core material and fire barriers. Its superior fire resistance builds reliable defenses for lives and property. In critical moments, it safeguards.

In essence, ceramic fiber board is far more than "just a board." It's the crystallization of scientific formulation, meticulous craftsmanship, and outstanding performance. From the carefully controlled vacuum forming process to its unique lightweight, high-temperature resistant fibrous structure, and its combined benefits of insulation, thermal shock resistance, and ease of installation – it tangibly solves numerous challenges in harsh industrial environments. Whether conserving precious energy, extending equipment life, enhancing operational safety, or ensuring process stability, this unassuming "tough board" plays an irreplaceable, critical role. In the grand picture of high-temperature industry, ceramic fiber board is undoubtedly an essential, resilient stroke.

 

FAQ

Q: What is the maximum service temperature of this board?
A: Sunjoy offers Refractory Ceramic Fiber Board in several grades. The standard rigid board (280-400 kg/m³) is rated for continuous use at 1000°C with a peak of 1260°C. We also supply lightweight board grades with classification temperatures up to 1430°C.

Q: Can this board be cut to size on-site?
A: Yes, it can be easily cut using standard tools like a fine-tooth saw, knife, or even a band saw. However, for complex shapes or to minimize waste, we recommend utilizing Sunjoy's custom pre-cutting service.

Q: How does this board compare to ceramic fiber blanket?
A: While both are made from similar fibers, the board is rigid and self-supporting due to its vacuum-forming process and binders. This makes it ideal for vertical walls, overhead installations, and areas requiring structural stability. Blanket is flexible and better for wrapping curved surfaces.

Q: Is the board safe to handle?
A: Like all fibrous materials, we recommend following standard industrial hygiene practices. Wear gloves to prevent irritation and a dust mask if cutting, to avoid inhaling airborne dust particles.

Q: What facing or coating options are available?
A: The product page primarily focuses on un-faced boards. However, for specific applications requiring vapor barriers or reflectivity, please contact our sales team to discuss the availability of custom facings like aluminum foil.

Ceramic fiber board is a lightweight refractory material made from ceramic fibers through molding and high-temperature sintering. It features high temperature resistance (up to over 1260℃), low thermal conductivity, and strong thermal shock resistance. Widely used in industrial kiln insulation, high-temperature equipment heat preservation, and fireproofing projects, it is easy to install with remarkable energy-saving effects.