Fiberfrax fiber blankets Unifrax Fiberfrax®

Fiberfrax Ceramic Fiber Blankets

Armil/CFS carries a range of ceramic fiber blankets for applications up to 3000°F (1650°C). Ceramic fiber blankets are lightweight, efficient insulators highly resistant to thermal shock and chemical attack. Durablanket® products are spun from long, high-purity Fiberfrax® ceramic fibers producing a blanket with exceptional handling strength. Durablanket® is used throughout the metals, ceramic, glass, heating, and chemical industries.

Moist Pak D blankets are further impregnated with inorganic bonding agents resulting in a hard rigid structure upon drying.

Fibermax® blankets are high alumina blankets manufactured using polycrystalline ceramic fibers. Fibermax® insulating blankets have excellent characteristics for use at elevated temperatures, such as in high temperature ceramic kilns.


Some features of our Fiberfrax Ceramic Fiber Insulation Blankets include:

  • High handling strength
  • Low thermal conductivity
  • Low heat storage
  • High temperature rating
  • Direct Fire Protection
  • Thermal shock resistance
  • High tensile strength
  • Optimal thermal stability

Durablanket S

  • Temperature Grade – 2300°F
  • Available Densities – 4pcf, 6pcf, 8pcf
  • Available Widths – 24”, 48”
  • Available Thicknesses – ¼”, ½”, 1”, 1½”,2”
  • Recommended Operating Temp. – 2150°F
  • Melting Point – 3200°F
  • Fiber Diameter – 2.5-3.5 microns (mean)
  • Tensile Strength – 7 PSI

Durablanket 2600

  • Temperature Grade – 2600°F
  • Available Densities – 6pcf, 8pcf
  • Available Widths – 24”
  • Available Thicknesses – 1”, 1½”, 2”
  • Recommended Operating Temp. – 2450°F
  • Melting Point – 3200°F
  • Fiber Diameter – 2.5-3.5 microns (mean)

Fibermax® ceramic fiber products

Fibermax® ceramic fiber blankets and mats are used in many high temperature applications. These products are commonly used in high temperature kilns and ovens, reheat furnaces, continuous annealing furnaces, incineration, and special atmosphere furnaces. Typical applications include burner block wraps, expansion joint seals, and batten strips in high temperature environments. The Fibermax Ceramic Fiber Blanket offers exceptional thermal insulation and sound absorption, making them ideal for uses like furnace door linings or gas turbines.

Fibermax® Needled Blanket

  • Temperature Grade – 3000°F
  • Available Densities – 6pcf, 8pcf
  • Available Widths – 24”
  • Available Thicknesses – ½”, 1”
  • Recommended Operating Temp. – 2900°F
  • Melting Point – 3400°F
  • Fiber Diameter – 2.5-3.5 microns (mean)

Click Here for Specifications (Data Sheet PDF)


Armil CFS is a custom manufacturer of high temperature processing equipment, including furnaces, kilns, and incineration equipment. All equipment is designed around each customer’s specific requirements. Armil CFS distributes high temperature insulation and refractory:

  • Unifrax Fiberfrax Ceramic Fiber Products
  • Unifrax Insulfrax and Isofrax bio-soluble insulations
  • BNZ Materials Insulating Brick
  • BNZ Materials Marinite and Transite
  • Refrasil silica textiles
  • American Fibrex mineral fiber boards

Request a quote today!