What are the characteristics of ceramic fiber blanket?

Release Time: 2025-07-30

In high-temperature industrial fields such as metallurgy, petrochemicals, and kilns, the temperature resistance limit and stability of insulation materials are directly related to production safety. Rosewool's ceramic fiber blanket, with its excellent high-temperature resistance, has become the preferred insulation solution for high-temperature conditions.

This ceramic fiber blanket is made from high-purity alumina and silica raw materials, which are melted, blown into fibers, and then needle-punched into shape. It can withstand high temperatures of 1260℃ for a long time and an instantaneous temperature of 1400℃, far exceeding traditional insulation materials. With a fiber diameter of only 3-5μm, the interwoven three-dimensional network structure results in a thermal conductivity as low as 0.03W/(m·K). In high-temperature kiln lining applications, it can reduce heat loss by more than 30%.

Given the complex shapes of industrial equipment, the product is flexible and resistant to tearing, allowing it to be directly cut and wrapped around irregular pipes and furnace bodies. Its installation efficiency is 50% higher than that of traditional refractory bricks. Additionally, it exhibits excellent chemical stability, resisting acid and alkali erosion, and maintains stable performance even in corrosive environments such as sulfur-containing flue gas. Its service life is over 6 years.

The characteristics of ceramic fiber blanket

Outstanding high-temperature resistance : Ceramic fiber blankets can withstand extremely high temperatures, with long-term operating temperatures ranging from 1000°C to 1400°C (variations exist among different models), and can even tolerate even higher temperatures for short periods. They are suitable for high-temperature environments such as industrial furnaces and high-temperature pipelines, far exceeding the upper limit of temperature resistance of traditional insulation materials (such as rock wool and glass wool).
Lightweight and excellent insulation : The product has a low density (typically between 96-128 kg/m³), is light in weight, and can significantly reduce the load on equipment. Its fibrous structure is loose and porous, with a thermal conductivity as low as 0.09, providing outstanding insulation and heat preservation performance, effectively reducing heat loss and energy consumption.
Good chemical stability: It has a strong resistance to most acids, alkalis, salts and other chemical substances, is not prone to chemical reactions, and can maintain stable performance in corrosive environments, with a relatively long service life.

Specification

Type		Standard	Zirconia
Classification temperature (°C)		1260	1430
Working Temperature (°C)		1050	1350
Color		Pure white	Pure white
Density (kg/m3)		96/128	128/160
Shrinkage on heating (%) (24 hours, density as 128/m3)		-3 (1000°C)	-3 (1350°C)
Thermal conductivity by different temperature (w/m.k) (density as 128kg/m3)		0.09(400°C) 0.16(800°C)	0.16(800°C) 0.20(1000°C)
Tensile strength (MPa) (density as 128kg/m3)		0.04	0.04
Chemical composition (%)	AL2O3	46	39-40
	AL2O3+SiO2	97	-
	AL2O3+SiO2+ZrO2	-	99
	ZrO2	-	15-17
	Fe2O3	<1.0	0.2
	Na2O+K2O	≤0.5	0.2
Size(mm)	7200×610×10-50; Other sizes can be customized as customer’s request

As a professional manufacturer, Rosewool relies on advanced production lines and can provide customized products with different densities (128-200kg/m³) according to customer needs, along with on-site technical support. All products have passed SGS environmental testing and are asbestos and heavy metal free, with no harmful gas emissions after installation, balancing production efficiency and operational safety.

Choose Rosewool ceramic fiber blanket to build an efficient insulation barrier for high-temperature equipment. Contact us now to obtain a suitable solution, making industrial high-temperature systems run more energy-efficiently and reliably.

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