Fiberfrax Ceramic Fiber Blankets

Fiberfrax® blankets are lightweight, thermally efficient ceramic fiber insulation with resistance to thermal shock. Made from spun Fiberfrax ceramic fibers that are needled for extra handling strength, these blankets are completely inorganic and available in a variety of temperature grades, densities and sizes.

Product Characteristics

  • Superior handling strength
  • Low thermal conductivity
  • Low heat storage
  • Light weight
  • Thermal shock resistance
  • Excellent thermal stability
  • Excellent fire protection

Typical Applications

  • Heat treat furnace linings
  • Investment casting mold wrapping
  • Ceramic kiln insulation
  • Boiler & furnace door linings and seals
  • Co-gen & turbine insulation
  • Expansion joint insulation
  • Thermal gasketing
  • Incineration, glass tank, pottery, raku, boiler, reformer linings

Fiberfrax Ceramic Fiber Papers

Fiberfrax® ceramic fiber paper is manufactured by forming Fiberfrax fibers into a uniform, lightweight, flexible sheet or roll. We can die cut gaskets or slit into narrow width coils of all the below types. All the papers, except 972 and 882, have an organic binder that outgasses around 500°F.

Product Characteristics

  • Low thermal conductivity
  • High heat reflectance
  • Good dielectric strength
  • Ease of fabrication

Typical Applications

  • Thermal insulation
  • High temperature gasket or parting agent
  • Appliance, woodburning stove, heater gaskets
  • Investment casting mold wrap
  • Muffler and catalytic converter insulation
  • Glass furnace and refractory back up insulation
  • Heat treating parting agent
  • Brazing separator

Fiberfrax Duraboards

Fiberfrax Duraboards are manufactured in a wet forming process using binders & Fiberfrax ceramic fibers.

Typical Applications

  • Hot face linings in ceramic kilns & heat treat furnaces
  • Heat shields or thermal barriers
  • Glass tank exterior wall insulation
  • Molten metal trough linings & covers
  • Expansion joints
  • High temperature baffles
  • Machined high temperature shapes

High Temperature Textiles

Our textile product line consists of woven cloth, tape, sleeving or tubing, rope & braid. All are available in three temperature variations and are non-asbestos or asbestos free.

  • Fiberglass Textiles to 1000°F.
  • Siltemp Silica Textiles to 1800°F.
  • Fiberfrax Textiles for continued use to 2300°F.

Typical Applications

  • Welding curtains for personnel protection
  • Cable, pipe or steam tracing line wrapping
  • Boiler, furnace or kiln door seal gasketing
  • Kiln car seal in ceramic or brick kilns
  • Stress relieving blankets
  • Induction heating furnace coil insulation
  • Exhaust hood curtains
  • Furnace heat zone separators
  • Expansion joint packings for aluminum & power plants, foundries & refineries

Fiberfrax Modules

Our Modules are made from Fiberfrax blankets & can be secured by hardware or mortar. They are rated at 1800°F, 2300°F, 2600°F & 3000°F. Standard sizes are 12″ x 6″ or 12″ x 12″, but we are capable of supplying 12″ x 24″ or up to a 12″ x 79″ module. Thicknesses are available from 2″ to 12″. Please contact us for recommendations & prices.

Product Characteristics

  • Faster heat up & cool down cycles
  • Lower heat losses
  • Reduced heat storage
  • Thermal shock resistance
  • Lower installation costs
  • Easy repairs

Typical Applications

  • Ceramic & pottery kilns
  • Heat treating furnaces
  • Reheat, annealing & forge furnaces
  • Boiler fire boxes

FiberFrax Coatings & Mixes

These Fiberfrax® high temperature products consist of coating cements, rigidizer, moldables, pumpables, caulks, casting mixes & refractory mortar. Many of these products contain a wet, inorganic binder to provide both strength and hardness at elevated temperatures.


Isofrax® is a revolutionary new fiber that utilizes a unique, patented silica-magnesia chemistry to solve a variety of demanding, high-temperature application problems to 2300°F. It meets European regulatory requirements (Directive 97/69/EC) due to its enhanced biosolubility. Isofrax is available as an inorganic, needled insulating blanket in various densities, thicknesses & widths. Isofrax is also available in loose Bulk Fiber, Paper & Module forms.


  • Low thermal conductivity
  • Required handling strength
  • Excellent thermal stability
  • Low heat storage
  • Thermal shock resistance
  • Flexibility
  • Low weight
  • Excellent corrosion resistance

Typical Applications

  • Gas turbine insulation in power & cogeneration plants
  • Gaskets & insulation for ovens, stoves, heaters and other appliances
  • Door seal & backup insulation in aluminum melting furnaces
  • Wall, roof, door and car linings in ceramic kilns
  • Fire protection applications
  • Refractory backup insulation in ladles, glass tanks and other high temperature furnaces

FyreWrap Duct Insulation

FyreWrap materials provide fire protection insulation & protective wrap systems for the commercial building industry. Offering a fire rated enclosure for grease, fume & air ducts, FyreWrap also reduces clearance to combustibles. Applications include commercial kitchen grease ducts, chemical fune exhaust ducts, critical air ducts, HVAC ducts, commercial dryer vents, and refuse & linen chutes.

Heating Elements

The most common silicon carbide element used to 2800°F is the solid bar that’s connected at both ends. We do have a spiral groove bar for higher temperatures (3000°F). Also available is a bayonet type where space limitations exist. Other specialty elements are available. Please contact us with dimensions (overall length, heating length & diameter) for a competitive quotation. We also have accessories such as braid, clamps, terminal straps & terminal tubes.

Typical Applications

  • Sintered powder metal furnaces
  • Ceramic kilns
  • Heat treating furnaces
  • Brazing furnaces
  • Forging furnaces
  • Annealing furnaces
  • Glass tempering furnaces & lehrs
  • Aluminum & other non-ferrous melting & holding furnaces
  • Laboratory furnaces