September 5, 2025
Ceramic fiber blanket is a lightweight, flexible insulation material designed for use in high-temperature environments. Manufactured from alumina-silica ceramic fiber through a spun or blown process, ceramic fiber blanket offers low thermal conductivity, excellent thermal shock resistance, and high tensile strength. Because of these properties, ceramic fiber blanket has become a key material in industries where energy efficiency and stable furnace operation are critical.
Unlike traditional refractory bricks or castables, ceramic fiber blanket is soft, resilient, and easy to install. It combines low heat storage with high insulation performance, making it ideal for equipment that undergoes frequent heating and cooling cycles. Ceramic fiber blanket is available in different temperature grades, ranging from 1260°C to 1600°C, depending on its fiber composition.
Key properties include:
Low thermal conductivity – Reduces heat loss and improves furnace efficiency.
Excellent thermal shock resistance – Withstands rapid temperature changes without cracking.
Lightweight and flexible – Easy to cut, wrap, and install on complex surfaces.
High chemical stability – Resistant to most corrosive agents except hydrofluoric acid and strong alkalis.
Asbestos-free and safe – Environmentally friendly insulation with low bio-persistence.
Ceramic fiber blanket is widely used in industries that demand reliable insulation under extreme conditions:
Furnaces and Kilns
Ceramic fiber blanket is commonly used as furnace lining, back-up insulation behind refractory bricks, and expansion joint packing. Its ability to handle repeated thermal cycling ensures long-lasting performance.
Petrochemical and Refining Plants
Fired heaters, reformers, and cracking units use ceramic fiber blanket for insulation, reducing energy loss and lowering operating costs.
Steel and Metallurgy
In reheating furnaces, ladle covers, and heat treatment equipment, ceramic fiber blanket minimizes heat loss and protects structures from high thermal stress.
Power Generation
Boilers, gas turbines, and incinerators benefit from ceramic fiber blanket as it reduces shell temperatures and improves thermal efficiency.
Fire Protection
Due to its non-combustible nature, ceramic fiber blanket is used in fire barriers, expansion joints, and passive fire protection systems.
The growing demand for energy-efficient solutions has placed ceramic fiber blanket at the center of modern thermal insulation strategies. By combining durability, easy installation, and reliable performance, ceramic fiber blanket helps industries improve productivity while reducing operational expenses. For facilities that require frequent shutdowns and startups, such as ceramic kilns or power plants, the quick-heating and quick-cooling benefits of ceramic fiber blanket provide significant operational flexibility.
