Ceramic Fiber Blanket: Flexible High‑Temperature Insulation Solution

 Introduction

Ceramic fiber blanket is a lightweight, needle‑punched refractory insulation material manufactured from high‑purity alumina‑silica fibers through advanced spinning and double‑sided needling processes. Without organic binders, it produces no smoke or flame during high‑temperature operation, delivering stable thermal performance for diverse industrial high‑heat scenarios. Available in multiple temperature grades including 1050°C, 1260°C, 1400°C and 1430°C, it covers continuous service requirements for different working conditions.

Low thermal conductivity stands as its core advantage. The interlocked fibrous structure traps static air, slowing heat transfer and effectively cutting heat loss of furnaces and thermal equipment, which greatly reduces fuel consumption and improves overall energy efficiency. It features low heat storage, enabling fast heating‑up and cooling‑down cycles for intermittent‑run kilns.

Excellent thermal shock resistance allows the blanket to endure frequent sharp temperature fluctuations without cracking, peeling or spalling, perfectly matching start‑stop working modes of batch‑type furnaces. High tensile strength and elasticity from the needling process resist tearing during transportation, installation and long‑term service. It can be freely cut, folded and layered to fit curved pipelines, irregular furnace corners and complex inner structures, bringing much easier on‑site construction compared with rigid refractory bricks and castables.

Chemically stable in neutral and oxidizing atmospheres, the material tolerates most flue gases and weak corrosive media. It can recover most thermal properties after oil contamination once fully dried. Note that it is not suitable for long‑term contact with hydrofluoric acid, phosphoric acid and strong alkali substances. Besides thermal insulation, it also provides sound‑absorbing performance to lower operating noise inside combustion chambers.

Ceramic fiber blanket serves both hot‑face working lining and backup insulation layers across multiple industries.

In metallurgy and thermal‑treatment industry, it is widely adopted for inner lining of industrial furnaces, kilns, furnace door sealing, expansion joint filling, and insulation for ladles and high‑temperature pipelinesAlibaba.co….

For petrochemical and power sectors, it insulates reformers, boilers, flues, ducts and heat‑exchanging equipment, providing reliable fire‑proof and thermal protection for high‑temperature vessels and reaction towersAlibaba.co….

Building fire‑protection projects apply it as fire‑stop filling for cable tunnels, curtain wall gaps and fire‑door core materials to meet fire‑resistance requirements of modern buildings.

It also covers other scenarios: heat‑shield wrapping for engine exhaust systems in transportation field, thermal protection for aerospace components, and insulation for laboratory muffle furnaces and various heating devicesAlibaba.co….

We supply ceramic fiber blanket in various densities ranging from 64 kg/m³ to 160 kg/m³, thickness from 6 mm to 50 mm, and customizable roll dimensions according to project drawings. Standard grades include standard‑grade, high‑purity grade and zirconia‑containing grade for different temperature demandsfiberceram….

Our products are strictly produced under standardized quality control. Each batch comes with complete inspection documents for chemical composition, thermal conductivity and shrinkage rate. Compared with traditional heavy refractory materials, our blanket lightens structural load of equipment and shortens installation cycles significantly.

We support customized sizes and technical grades to match your actual furnace operating temperature, atmosphere and budget. Whether you need spot goods or bulk project orders, we can offer stable supply and professional technical guidance for installation and construction.