A ceramic blanket, or ceramic fiber blanket, is a lightweight, flexible insulation material designed to withstand extreme temperatures, typically ranging from 1,260°C (2300°F) to 1,425°C (2600°F). It is widely used in both industrial and home DIY projects, such as insulating furnaces, wood stoves, pizza ovens, and kilns.
Ceramic blankets are manufactured through a “needling” process that creates a continuous mat without the use of organic binders, ensuring they remain smoke-free even during initial heat
- Thermal Resistance: Most standard grades are rated for continuous use up to 2300°F (1260°C), with high-purity or zirconia grades reaching higher.
- Density Options: Common densities include 64 kg/m³ (4 lb/ft³), 96 kg/m³ (6 lb/ft³), and 128 kg/m³ (8 lb/ft³). Higher density generally offers lower thermal conductivity and better heat retention.
- Material Composition: Typically composed of high-purity alumina and silica (often 43–47% alumina and 53–57% silica).
- Ease of Use: The material is flexible, allowing it to be easily cut with a sharp utility knife and fitted around irregular shapes like pipes or curved furnace walls.