1. Definition  
Ceramic fiber roll is a lightweight, high-temperature insulating material manufactured by melting high-purity alumina and silica in a resistance furnace, fiberizing the melt through spinning, collecting the fibers into a continuous mat, mechanically needling to enhance tensile strength, transversely trimming to exact width, and winding into roll form.

2. Key Properties  
Service Temperature  
• Standard grade: 1 050 °C  
• Standard grade: 1 260 °C  
• High-purity grade: 1 350 °C  
• Zirconia-containing grade: 1 430 °C  

Thermal Conductivity  
• ≤ 0.09 W·m⁻¹·K⁻¹ at 400 °C  
• ≤ 0.16 W·m⁻¹·K⁻¹ at 800 °C  

Density  
• 64, 96, 128, 160 kg·m⁻³; 128 kg·m⁻³ is most common.

Chemical Stability  
Chemically inert except to hydrofluoric acid, phosphoric acid and strong alkalis.

Additional Characteristics  
Low heat storage, excellent thermal-shock resistance, asbestos-free, easily field-cut.

3. Typical Applications  
• Furnace, kiln and heater linings and backup insulation  
• Boilers, piping, heat exchangers and gas-turbine insulation  
• Petrochemical cracking, reformer and reforming-furnace linings  
• High-temperature ducts, stacks, valve and flange insulation blankets  
• Thermal insulation layers for appliances, automotive and aerospace sectors

4. Dimensions & Packaging  
Thickness: 6–50 mm (25 mm and 50 mm most common)  
Width: 610 mm or 1 220 mm  
Length: 3 600 mm, 7 200 mm or customized  
Packing: heat-shrink film + carton + pallet; outer labels show product data, batch number and date.

5. Installation Guidelines (Condensed)  
1. Substrate must be clean, dry and free of rust, dust and oil.  
2. Secure with stainless-steel anchors (Φ6 mm studs with washers) at 6–12 pcs/m² in a staggered pattern.  
3. Joints shall be butt-pressed or T-lapped and sealed with high-temperature adhesive or ceramic-fiber strips.  
4. Provide expansion gaps in outer metal cladding to prevent cracking during thermal cycling.

6. Safety & Environmental  
Inhalable inorganic fibers; wear dust masks, safety goggles and long-sleeve overalls during installation.  
Compliant with REACH and RoHS; free from carcinogenic additives.

7. Reference Standards  
• GB/T 3003-2017, Refractory fibres and products  
• ASTM C892, Standard Specification for High-Temperature Fiber Blanket  
• EN 1094-8, Refractory products—Test methods for fibre blankets