Ceramic Fiber Blanket Vs. Mineral Wool: Which Insulation Is Better?

Sep 25, 2025

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     Choosing the right insulation material is crucial for improving energy efficiency, extending equipment life, and enhancing fire safety. Two leading options are ceramic fiber blankets and mineral wool insulation. Both are non-combustible and highly effective, but their applications differ. This guide compares performance, benefits, and best uses to help you make the right decision.

   What Is Ceramic Fiber Blanket?

     Ceramic fiber blanket is a high-temperature insulation material made from alumina and silica fibers. It is lightweight, flexible, and capable of withstanding up to 1,430 °C . Because of its low thermal conductivity, ceramic fiber is widely used in kilns, furnaces, boilers, and petrochemical plants where heat resistance and thermal efficiency are critical.

    

   What Is Mineral Wool Insulation?

     Mineral wool, also known as rock wool or stone wool insulation, is produced from molten basalt or slag spun into fibers. It offers excellent fire resistance, sound absorption, and moisture protection, making it a popular choice for building insulation, HVAC systems, and fireproofing applications. Standard mineral wool can handle up to 700 °C, with high-temperature grades offering improved resistance.

LUKE Ceramic Fiber Blanket vs Mineral Wool

Ceramic Fiber Blanket vs. Mineral Wool: Key Differences
What Is Ceramic Fiber Insulation Used For?

1. Temperature Resistance

Ceramic Fiber Blanket: Ideal for extreme heat applications (1,200–1,430 °C).

Mineral Wool: Effective for moderate to high temperatures (up to 700 °C).

Refractory Rock Wool Blanket

2. Thermal Conductivity

Ceramic Fiber Blanket: Lower thermal conductivity, ensuring superior insulation in high-temperature environments.

Mineral Wool: Excellent insulation at normal building temperatures, but less efficient at extreme heat.

Soluble Fiber Blankets

3. Mechanical Strength & Durability

Ceramic Fiber Blanket: Lightweight and flexible but less mechanically strong; often requires protective coatings.

Mineral Wool: Dense, rigid, and more durable under compression-better suited for structural insulation.

Rock Wool Blanket Sound Proof

4. Fire Safety

Both materials are non-combustible. Ceramic fiber performs better in industrial fire protection, while mineral wool is widely used for building fireproofing.

   Both ceramic fiber blanket and mineral wool insulation are excellent choices, but they serve different needs.

   Choose ceramic fiber blanket for industrial high-temperature applications.

   Choose mineral wool insulation for construction, fireproofing, and acoustic performance at moderate temperatures.

   At Luke New Materials Co., Ltd., we supply high-quality ceramic fiber, soluble fiber, glass wool, and rock wool products tailored for industrial and building applications. Contact us today to find the right insulation solution for your project.

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