Ceramic Fiber Insulation Board is a rigid high-temperature insulation material made from alumina-silica fibers, offering excellent thermal resistance, low thermal conductivity, and mechanical strength.
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Ceramic Fiber Insulation Board is manufactured using high-purity alumina and silica fibers, combined with binders and formed under controlled pressure, then cured to produce a rigid, durable board. It provides excellent thermal insulation at high temperatures up to 1260°C~1430°C (depending on grade), low thermal conductivity, and strong resistance to thermal shock. The board is lightweight, easy to cut and shape, and chemically stable, making it ideal for applications where both heat insulation and mechanical support are required. Ceramic fiber boards are widely used in industrial furnaces, kilns, boilers, and high-temperature equipment to reduce heat loss, improve energy efficiency, and protect structural components.
Type: Commom/ Standard/ High Pure/ High Alumina/ Zirconium
Length: 600-1200mm (Can be customized)
Width: 400mm/ 600mm/ 1000/ 1200mm (customized)
Thickness: 6-50mm (Can be customized)
Classification temperature (°C): 1100/1260/1360/1430/1600°C
Working temperature (℉): 1700-3000℉
Property: Excellent insulating performance and thermal stability, Low heat storage, Resistance to thermal shock & Good machinability
Application: Back up insulation in refractory construction, Molten aluminium handling application, Back up insulation in Glass melting furnace, & Back up insulation in steel ladles
Characteristics
High pressure strength, long service life, low heat capacity, low thermal conductivity and High density
Non-brittle material, good toughness, accurate size, good flatness and 6-50mm thickness Choices.
Flexible and easy to cut and install, convenient construction and excellent anti-wind erosion performance.
Continuous product,uniform fiber distribution & stable property
Can withstand gas flow velocity of 30 m/sec
Resilience and resistance to thermal shock
Shorter heat up and cool down time
Greater mechanical strength and Asbestos free
Ceramic fiber board in Rongsheng company can be divided in to 5 kinds types: Common ceramic fiber board 1100(2012℉), Standard ceramic fiber board 1260(2300℉), High pure Ceramic fiber board 1260(2300℉), High Alumina ceramic fiber board 1360(2480℉), High zircon ceramic fiber board 1430(2606℉), In addition, we also can customized the ceramic fiber board, making the temperature up to 1600℃/3000℉.
| Type | common | standard | high pure | high aluminum | zircon | |
| classfication Temperature(℃) | 1100(2012℉) | 1260(2300℉) | 1260(2300℉) | 1360(2480℉) | 1430(2606℉) | |
| Working Temperature(℃) | 950℃(1832℉) | 10501150(1922℉) | 1100(2012℉) | 1200(2192℉) | 1350(2462℉) | |
| color | white | pure white | pure white | pure white | pure white | |
| Shrinkage on heating (%)(Temperature 24 hours, density as 128kg/m3) |
-4 (1000°C) |
-3 (1000°C) |
-3 (1100°C) |
-3 (1200°C) |
-3 (1350°C) |
|
| Thermal conductivity of various temperatures (w/m.k) (density 128kg/m3) |
0.085(400°C) 0.132(800°C) 0.18(1000°C) |
0.085(400°C) 0.132(800°C) 0.18(1000°C) |
0.08(400°C) 0.13(800°C) 0.1(1000°C) |
0.085(400°C) 0.132(800°C) 0.18(1000°C) |
0.085(400°C) 0.132(800°C) 0.18(1000°C) |
|
| Compressive strength (Mpa) | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | |
| Chemical composition (%) | AL2O3 | 44 | 46 | 47-49 | 52-55 | 39-40 |
| AL2O3+SIO2 | 96 | 97 | 99 | 99 | – | |
| AL2O3+SIO2+ZrO2 | – | – | – | – | 99 | |
| ZrO2 | – | – | – | – | 15-17 | |
| Fe2O3 | <1.2 | <1.0 | 0.2 | 0.2 | 0.2 | |
| Na2O+K2O | <0.5 | <0.5 | 0.2 | 0.2 | 0.2 | |
| Dimensions (mm) | Common Specifications(Length*Width& Thickness): 600*300*10-50;600*400*10-50; 900*600*10-50；1200*800*10-50; 1200*1000*10-50;1000*600*10-50 Other dimension can be available. |
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Ceramic Fiber Insulation Board is widely used in:
Industrial furnace and kiln linings
Boilers and heat exchangers
High-temperature equipment lining and protection
Thermal insulation panels in petrochemical and power plants
Furnace doors, panels, and partitions
Foundry and refractory backup insulation
Comprehensive Refractory Product Range
We manufacture 3 main types of refractory materials — refractory castables, high alumina cement, and refractory bricks — covering 100+ industrial furnace types worldwide.
Certified Quality and International Standards Compliance
All batches undergo strict quality control. Products comply with ISO, ASTM, and GB standards, ensuring reliable performance in high-temperature industrial applications.
Annual Production Capacity of 130,000 Tons
With a large-scale capacity of 130,000 tons per year, we guarantee stable supply and on-time delivery for long-term and large-volume projects.
Exported to 120+ Countries and 1,000+ Projects
Our products have been successfully delivered to over 120 countries, supporting more than 1,000 industrial projects, including cement, steel, incineration, glass, and petrochemical furnaces.
20+ Years of Experience in Refractory Manufacturing
With over 20 years of experience, we understand real furnace conditions and deliver materials proven in long-term industrial operations worldwide.
Professional Technical Support and Free Samples
We provide technical assistance from material selection to installation guidance, with free samples available for testing and supporting 1,000+ projects globally.
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