Is Ceramic Fiber a Good Insulator?

Ceramic fiber definite is a good insulator. In theory, it is the best insulation material except the nanofiber. Ceramic fiber products have great insulation ability. They can be used in many industrial high-temperature equipment, including the mechanical industry, chemical industry, electron industry, metallurgical industry, and so on.

Why Ceramic Fiber is a Good Insulator?

Ceramic fiber has the features of light weight, high refractoriness, and low thermal conductivity. The ceramic fiber products are as well. These products are made of ceramic fiber that has low thermal conductivity, chemical resistance, and thermal shock resistance. They are even environment-friendly products.

Low Thermal Conductivity

Ceramic fiber has low thermal conductivity, it can reduce heat transfer. In this situation, it can minimize heat loss and insulation the heat transfer. Using ceramic fiber products as the lining of kilns, the thermal conductivity is less than 0.28W/m.k in 1000℃.

Chemical Resistance

Ceramic fiber products can resist the chemical eroded. Ceramic fiber is a neutral material. Except for strong acids and alkalis, ceramic fiber products will not react with other chemical solutions or metallic solutions. So they could be used in chemical industry equipment.

Good Thermal Shock

Ceramic fiber products have good flexibility. Only the ceramic fiber braided fabric but also the ceramic fiber board and ceramic fiber module, they can resist strong mechanical shock and extreme temperature. They will not easily break or be abrasive in high-temperature and high-pressure environments.

Environment Friendly

Ceramic fiber products are green and low-carbon products. They are poisonless and harmless products. Besides, ceramic fiber products will release smoke and present color change in the first use time. Don’t worry! This is a normal phenomenon. They are nontoxic.

Common ceramic fiber products include ceramic fiber blanketsceramic fiber boardsceramic fiber clothsceramic fiber paperceramic fiber modules, ceramic fiber rope, and so on.

ceramic fiber blanket
Ceramic Fiber Boards
ceramic fiber cloth

ceramic fiber paper
ceramic fiber modules
ceramic fiber rope

Difference Between Insulation Bricks and Ceramic Fiber Products

Maybe many people want to know the difference between insulation bricks and ceramic fiber insulation products. Let’s see some details.


Insulation bricks need to be used with refractory cement. So you need to use insulation bricks and refractory cement to construct high-temperature equipment. These may increase the work time in the construction process.

Compared with insulation bricks, ceramic fiber insulation products are easy to construct. Ceramic fiber products have light weight so they will light the burden on high-temperature equipment. Moreover, they can trim to different shapes while repairing the insulation layer.


In use, ceramic fiber products are used more widely than insulation bricks. Insulation bricks are mainly used in large high-temperature equipment including kilns of glass industry, metallurgical industry, construct material of thermal equipment, insulation layers of industry furnaces, and so on.

Ceramic fiber products are used more widely. They can used for the linings of industrial furnaces, backer broad of steam engines, high-temperature pipe insulation material, and so on. They also can used for high-temperature gaskets, electrical apparatus elements, electron cable or pipeline covering, and so on.

ceramic fiber products
insulation bricks

Supplier of Ceramic Fiber Insulation

As a supplier of refractory material, Kerui can provide various sizes of ceramic fiber products. If you need a customized special size, please offer the specification. We will guarantee delivery as soon as possible. Besides, we offer a one-stop service to every customer. If you need to purchase other refractory materials, you can enter our product page to find the products.