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ceramic fire blanket

High-Performance Ceramic Fiber Blanket

In extreme-temperature industrial environments, reliable insulation is critical for ensuring safe equipment operation and enhancing energy efficiency. Our Ceramic Fiber Blanket is manufactured from high-purity aluminosilicate fibers using an advanced spinning and needle-punching process.

Product Features

It is a superior lightweight refractory material engineered to meet the most demanding high-temperature applications, providing you with unparalleled fire protection, thermal insulation, and heat management.

  • Extreme Temperature Resistance: Engineered for continuous operation at temperatures up to 2600°F (1430°C). Its high-purity aluminosilicate fibers ensure long-term structural integrity and thermal performance, providing a reliable safety margin in extreme heat.
  • Exceptional Thermal Performance: Features an extremely low thermal conductivity by trapping millions of air pockets in its dense fiber matrix. This structure effectively blocks all modes of heat transfer, leading to significant energy savings, reduced insulation thickness, and cooler external surfaces for enhanced safety.
  • Lightweight & Flexible: Significantly lighter than traditional refractories, reducing structural steel requirements and construction costs. Its excellent flexibility allows for easy installation on complex geometries and irregular surfaces, eliminating gaps and saving significant labor time.
  • High Chemical Stability: Chemically inert to most corrosive agents, furnace atmospheres, and molten non-ferrous metals. Its thermal and physical properties are fully restored after drying if exposed to steam or water, ensuring a long and reliable service life in challenging environments.
  • Safe & Asbestos-Free: Guaranteed 100% asbestos-free, eliminating the health risks associated with asbestos exposure. This modern, synthetic fiber material ensures full compliance with global safety regulations, including OSHA and REACH standards, for a safer workplace.

Core Product Specifications

To ensure you can select the precise product for your needs, we offer a detailed specifications table. You can choose a combination based on your equipment’s maximum operating temperature, required insulation performance (related to density), and insulation layer design (related to thickness).

By Temperature Grade

The performance and temperature rating of a Ceramic Fiber Blanket are fundamentally dictated by its chemical composition and fiber purity. Our grades are engineered from a carefully controlled blend of alumina (Al₂O₃) and silica (SiO₂). As we move from Standard to High-Purity grades, the alumina content increases while impurities like iron oxide and titania are minimized. These impurities act as fluxes that can lower the material’s melting point; removing them is key to increasing the service temperature. For our highest-performing grades, zirconia (ZrO₂) is introduced into the composition. Zirconia acts as a powerful crystal stabilizer, inhibiting fiber shrinkage and degradation at extreme temperatures, which significantly raises the blanket’s maximum continuous use limit.

Model: STD

Max Temperature: 2012°F / 1100°C

Continuous Use Temp.: 742°F / 950°C

Description: An economical choice for various low to medium-temperature industrial equipment, pipes, and linings.

Model: HP

Max Temperature: 2300°F / 1260°C

Continuous Use Temp.: 2012°F / 1100°C

Description: (Most Common) A balanced performance grade with excellent chemical stability, widely used in most heat treatment furnaces, kilns, and high-temperature equipment.

Model: HZ

Max Temperature: 2480°F / 1360°C

Continuous Use Temp.: 2192°F / 1200°C

Description: Made from higher purity raw materials with low flux content for enhanced stability in demanding applications.

High Zirconia Grade

Model:ZR

Max Temperature: 2600°F / 1430°C

Continuous Use Temp.:2462°F / 1350°C

Description:Fortified with zirconia for superior refractoriness and excellent thermal shock resistance, designed for the most severe and fluctuating high-temperature environments.

4 Products Found.

By Density

The density of a Ceramic Fiber Blanket, measured in pounds per cubic foot (pcf) or kilograms per cubic meter (kg/m³), is a critical specification that directly influences both its thermal performance and its mechanical strength. A higher density blanket packs more individual insulating fibers into the same volume. This creates a more complex, tortuous path that significantly impedes heat transfer via conduction, convection, and radiation. As a result, increasing the density generally lowers the blanket’s thermal conductivity, providing superior insulation. Mechanically, a denser blanket is also stronger, more resilient to compression, and offers greater resistance to erosion from high-velocity gases.

 

  • Thermal Conductivity (W/m·K): ≤ 0.20

    Tensile Strength (MPa): ≥ 0.04

    Description: Soft and pliable, making it easy to wrap around irregular shapes and piping. A high-value, cost-effective option.

  • 8 lb/ft³ (128 kg/m³)

    Thermal Conductivity (W/m·K): ≤ 0.16

    Tensile Strength (MPa): ≥ 0.05

    Description: Recommended) The ideal balance of excellent insulation performance and good mechanical strength for the vast majority of applications.

  • 10 lb/ft³ (160 kg/m³)

    Thermal Conductivity (W/m·K): ≤ 0.14

    Tensile Strength (MPa): ≥ 0.06

    Description: A firmer structure offering the best insulation value and superior resistance to air velocity, suitable for hot face linings where maximum energy savings are required.

By Thickness

The thickness of the insulation is the most direct factor used to achieve a desired level of thermal performance. For any given grade and density of Ceramic Fiber Blanket, the total thermal resistance (R-value) is directly proportional to its thickness—doubling the thickness effectively doubles the insulating capability. Engineers perform heat transfer calculations to specify the required thickness needed to reduce the temperature from the hot furnace interior to a safe and efficient “cold face” temperature on the exterior shell. We offer a wide range of standard thicknesses, which can also be layered to achieve precise, calculated insulation values for any application.

  • Common Widths: 24″ / 48″ (610 / 1220 mm)

    Standard Lengths: 50′ / 25′ (15.2 / 7.3 m)

    Application Notes: Ideal for compact spaces, as an outer layer in multi-layer designs, or for pipe wrapping.

  • 1.5" / 2" (38 / 50 mm)

    Common Widths: 24″ / 48″ (610 / 1220 mm)

    Standard Lengths: 16.4′ / 12.5′ (5 / 3.8 m)

    Application Notes: Provides greater insulating capacity, often used for furnace linings and furnace door seals where a significant temperature drop is needed in a single layer.

Tailored Insulation Solutions: Our Customization Process

We understand that standard dimensions do not fit every unique industrial application. That’s why we specialize in providing custom-fabricated Ceramic Fiber Blanket solutions tailored to your exact engineering requirements. From non-standard widths to complex die-cut shapes, our team is equipped to deliver the perfect fit for your project.

Our streamlined process ensures you receive a high-quality, precise product efficiently:

Step 1: Initial Consultation & Technical Review

  • Your process begins with a one-on-one consultation with our technical sales team. We will discuss the specifics of your application, including thermal requirements, operating environment, mechanical stresses, and critical dimensions. Our experts will help you select the optimal grade, density, and thickness to ensure maximum performance and cost-effectiveness.

Step 2: Solution Proposal & Prototyping

  • Based on our technical review, we will provide a detailed proposal that includes a formal quotation, product specifications, and projected lead times. For complex applications requiring a unique shape or fit, we can produce and supply a prototype for your testing and approval, ensuring the final product meets your expectations before full-scale production.

Step 3: Precision Manufacturing & Quality Assurance

  • Upon your approval, your custom order enters our dedicated production line. We utilize advanced slitting, laminating, and CNC die-cutting equipment to manufacture your Ceramic Fiber Blanket to exact specifications with industry-leading tolerances. Our rigorous in-process quality control guarantees that every piece meets the same high standards as our standard products.

Step 4: Custom Packaging & Global Delivery

  • Your finished custom products are carefully packaged to your specifications to ensure they arrive at your facility in perfect condition. We offer robust packaging solutions designed to protect the material during domestic and international transit. Our logistics team will coordinate with you to ensure a timely and reliable delivery to your project site, anywhere in the world.

[Superior Process] Advanced "Spun & Double-Sided Needling" for a Stronger, More Durable Blanket

  • Beyond Standard Fibers: We utilize a leading spun fiber process, which produces longer and thicker fibers than standard blown methods. This inherently increases the blanket’s tensile strength and resilience from the start.
  • Beyond Single-Sided Punching: Our innovative double-sided needling technique creates a denser, more uniform interlocked web of fibers. This ensures the blanket will not delaminate or shed during installation or long-term high-temperature service, drastically extending its lifespan and reducing maintenance costs.

[Precision Manufacturing] Tighter Tolerances for a Perfect Fit on Your Critical Equipment

  • We Understand Your Demands: Standard off-the-shelf products don’t fit every need. Our advanced cutting equipment and strict process controls allow us to deliver thickness and density tolerances far tighter than industry standards.
  • Eliminate Heat Leaks: A more precise fit means a seamless installation on your furnace or piping, eliminating hot spots and thermal bridges to maximize energy efficiency.

More Differences From Other Suppliers

[Verifiable Quality] Batch-Specific Test Reports for Transparent Performance Data
  • No More Vague Claims: While others may only provide a certificate of conformity, we supply a detailed performance test report with every batch, clearly listing critical data like linear shrinkage and thermal conductivity.
  • Full Traceability: Our production strictly adheres to the ISO 9001 Quality Management System. You can have complete confidence that every square foot of product you receive meets its stated performance, ensuring the safety of your equipment and the effectiveness of your energy savings.
[Expert Support] Complimentary Thermal Calculations to Help You Choose Right, Not Expensive
  • More Than Just a Sales Team: Our team consists of industry experts. Before you purchase, we can provide complimentary thermal calculation services based on your operating conditions (furnace temperature, wall thickness, etc.).
  • Scientific Selection for Cost Reduction: We help you scientifically determine the most economical and effective insulation thickness and density, preventing material waste or underperformance from improper selection and delivering real cost savings and efficiency gains.

Widespread Applications

Industrial Furnaces & Kilns

 

Use Case: As a primary hot-face lining in intermittent and continuous furnaces, our Ceramic Fiber Blanket offers massive energy savings over traditional dense refractories. Its remarkably low heat storage allows for faster heat-up and cool-down cycles, significantly increasing productivity in batch operations like shuttle kilns. It is also used as a high-performance backup insulation behind brick or castable, as flexible seals and gaskets for furnace doors, and for wrapping high-temperature components.

Petrochemical Industry

 

Use Case: In the demanding petrochemical sector, this blanket is essential for process control and safety. It is used as the primary insulation in process heaters, reformers, and ethylene cracking furnaces to maximize thermal efficiency. It also provides critical personnel protection by insulating high-temperature piping and equipment. Furthermore, it is a key component in passive fire protection (PFP) systems, wrapped around vessel skirts and structural supports to protect them from failure during a hydrocarbon fire.

Power Generation

 

Use Case: Our Ceramic Fiber Blanket is crucial for maintaining thermal efficiency in power plants. It is used to insulate boilers and high-pressure steam piping, ensuring minimal heat loss to maintain steam quality and pressure over long distances. In combined cycle plants, it lines Heat Recovery Steam Generator (HRSG) ductwork. It also serves as removable insulation pads for turbines and valves, providing not only thermal but also acoustic insulation, while being a critical fire barrier in nuclear containment areas.

Steel & Metallurgy

 

Use Case: The steel industry relies on our blanket for high-temperature process control and equipment protection. It is used to line reheat furnace doors and roofs, and as insulation for ladle lids, tundish covers, and soaking pit covers to prevent premature solidification of molten metal. This precise temperature control is vital for maintaining metal quality. It also serves as a protective barrier against metal splash and extreme radiant heat, extending the life of critical equipment.

Fire Protection Equipment

 

Use Case: This non-combustible blanket is a core component in engineered passive fire protection systems. Its purpose is to ensure fire compartmentation and maintain structural integrity during a fire. It is used as the insulating core in fire-rated doors, marine bulkheads, expansion joints, and chimney systems. Its extremely low thermal conductivity slows the transfer of heat, preventing ignition on the unexposed side and helping equipment achieve a specific fire endurance rating (e.g., 1-hour, 2-hour).

One-Stop Fire Blanket Customization

20+ Years of Expericen. OEM, ODM and OBM. Preofessional R&D Team. Competitive Price.

Glance At My Workshop, Check Technical Data Sheet

Factory view

Testing ItemStandardResultRemark
Combustion performance (Class A) (temperature 1260 ℃)The average temperature rise inside the furnace is
≤ 1260 ℃
1200 ℃
The average continuous combustion time of the sample is ≤ 20s0s
The average burn loss rate of the sample is ≤ 15%9%
Bulk density (kg/m)550-850700Comply with requirements
Asbestos fiber testing3mgo2sio.2HO=00Requirements for asbestos free composition
Thermal conductivity W/(m · k)Average temperature 1000 ℃± 10 ℃0.127Comply with requirements
Chemical composition,≥4046.45Comply with requirements

Frequently Asked Questions (FAQ)

What is the main difference between a ceramic fiber blanket and a fiberglass blanket?

The core differences are temperature rating and chemical composition.

  1. Temperature Limit: Ceramic fiber (aluminosilicate) is designed for extreme heat, with continuous use temperatures typically above 2000°F (1100°C). Fiberglass fire blanket(silicate glass) will soften and melt at much lower temperatures, usually not exceeding 1000°F (550°C).
  2. Insulating Performance: At medium to high temperatures, ceramic fiber has a lower thermal conductivity than fiberglass, making it a much more effective insulator in those ranges.
  3. Application: This makes ceramic fiber the premier choice for industrial furnaces and high-heat applications, while fiberglass is used for general building insulation and lower-temperature equipment.
Is a ceramic fiber blanket fireproof?

Yes, it is more than fireproof; it is an industrial-grade non-combustible material. Per international standards like ASTM E136, ceramic fiber is classified as non-combustible. Its key fireproofing characteristics include a high melting point far exceeding typical flame temperatures, low heat storage, and excellent thermal stability, allowing it to maintain structural integrity even during thermal shock (like being hit with fire hoses).

What is the R-value of a ceramic fire blanket?

R-value (thermal resistance) is calculated as R-value = Thickness / Thermal Conductivity (K-value). For high-temperature industrial applications, it is more precise to refer to the K-value, as it changes with temperature.

  • Example: Our 8 lb/ft³ blanket has a K-value of ~0.16 W/m·K at a mean temperature of 1472°F (800°C). A 1-inch (0.025m) thick blanket would thus have an R-value of approximately 0.156 m²·K/W at that temperature. We strongly recommend using our full K-value curve for precise thermal engineering calculations.
What are the disadvantages of ceramic fiber?

Understanding its limitations is key to proper use:

  1. Handling Requires PPE: The fibers can be a mechanical irritant to the skin and respiratory tract. Standard personal protective equipment (PPE) like gloves, safety glasses, long sleeves, and a dust mask (e.g., N95) is always required during installation.
  2. Becomes Brittle After Firing: After prolonged exposure to its maximum rated temperature, the fibers undergo a process called devitrification (crystallization), causing the blanket to lose flexibility and become more fragile.
  3. Not for Load-Bearing: As a lightweight, flexible material, it is designed solely for insulation and cannot support a mechanical load.
  4. Chemical Susceptibility: It is vulnerable to corrosion from hydrofluoric acid, phosphoric acid, and strong alkalis.
How long does a ceramic fiber blanket last?

Its lifespan is determined by the severity of the operating conditions, not a fixed time. In a stable, clean environment within its temperature limits, it can last for many years. Factors that can shorten its life include: frequent, rapid temperature cycling; high-velocity gas erosion; mechanical vibration; and chemical attack from substances like alkali metals or sulfur compounds.

How do you dispose of a ceramic fiber blanket?

Disposal of refractory ceramic fiber (RCF) should follow standard industry protocols. Always consult the product’s Safety Data Sheet (SDS) for official guidance. The general best practice is to:

  1. Suppress Dust: Lightly wet the material with water to minimize airborne fibers.
  2. Seal Securely: Place the wetted material in heavy-duty, sealed polyethylene bags (double-bagging is recommended).
  3. Label Clearly: Label the bag as “Ceramic Fiber Waste – Handle with Care.”
  4. Dispose Properly: Dispose of the material at an industrial landfill approved to accept such waste, in accordance with all local, state, and federal regulations.
Is a ceramic fiber blanket safe to touch?

While touching it will not cause a chemical burn, we strongly advise against handling it with bare hands. The discomfort it can cause is a physical, mechanical irritation, similar to handling raw fiberglass wool.

  • New Blankets: The fibers can stick to the skin and cause temporary itchiness.
  • Used Blankets: After being fired at high temperatures, the blanket is more brittle, and touching it can more easily release fine dust particles.
  • Safety Rule: Wearing proper gloves is the basic requirement for comfort and safety when handling either new or used blankets.
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