Ceramic Fiber Blanket & Board

Ceramic fiber blanket and board are high-temperature insulation for furnaces, kilns and other high-temperature equipment linings, rated from 1000°C to 1400°C depending on grade. The blanket is flexible for lining and wrapping, while the board is rigid for flat panels, hot-face linings and backup layers.

Ceramic fiber blanket and board are rated for continuous use between 1000°C and 1400°C, depending on the grade selected. The melting point is above 1600°C, and shrinkage stays below 3% after 24 hours at rated temperature. Select a grade with margin above the actual hot-face temperature.

Ceramic fiber blanket comes in rolls 610 mm or 1220 mm wide and 7.2 m long, in 12, 25 and 50 mm thicknesses. Board is supplied in 600 mm x 900 mm or 1000 mm x 1000 mm sizes. Density ranges from 96 to 160 kg/m³.

Ceramic Fiber Blanket & Board covers the widest temperature range, up to 1400°C, and includes rigid board. Maftec / Maftac Ceramic Fiber Blanket is a bio-soluble AES fiber rated up to 1260°C, chosen where low bio-persistent fiber is required for health and safety or specification reasons.

Ceramic fiber blanket and board have a thermal conductivity of 0.10 to 0.20 W/mK at 600°C mean temperature. That figure is measured at high temperature, so it cannot be compared directly with mineral wool values quoted at 50°C. Tensile strength of the blanket is 0.05 to 0.10 MPa.

Ceramic fiber blanket is fixed to the furnace shell with high-temperature anchors, laid in layers with staggered, compressed joints so shrinkage does not open gaps. Board is used for flat panels and as backup behind Insulating Fire Bricks (IFB) or Castable Refractory. Wear suitable respiratory protection and gloves when cutting fiber.

Ceramic fiber can replace or back up brick in many kiln and furnace linings, cutting heat storage and allowing faster heat-up. Where the lining faces abrasion, flame impingement, slag or mechanical wear, dense linings such as Fire Clay Bricks, High Alumina Bricks or Castable Refractory are normally kept on the hot face.

Ceramic fiber blanket and board are supplied to ASTM C892 and EN 14306. ASTM C892 is the standard for high-temperature fiber blanket insulation. If you need grade-specific test data for your order, tell us in your enquiry and we will confirm what is available.

Ceramic fiber blanket is classified under HS code 6806 10 00, with ceramic and mineral fiber blanket falling under the mineral wool heading. Rolls are poly-wrapped and packed in cartons. It is often shipped in the same container as bricks, castables and mortar for a complete furnace lining order.