Ceramic Fiber Paper

CeraTex® 3170

CeraTex® Ceramic Fiber Paper is an alumino-silicate ceramic fiber-based non-woven fabric. It is manufactured through a special paper-making process with high purity washed fibers, suitable for high temperature insulation up to 2300°F.

Cross-reference: CeraTex 3170 is an equivalent/superior equivalent of the following styles: Unifrax Fiberfrax® 550, 970; Thermal Ceramic Kaowool 900; Lydall/Lytherm 1530, 1535.


Main Characteristics and Properties
  • White color, light-weight, flexible, good handling strength and good uniformity
  • Resists temperature as high as 2300º F, fire resistant
  • Low thermal conductivity, low heat storage, thermal shock resistant
  • Good dielectric strength
  • Excellent corrosion resistance (Resistant to most chemicals except hydrofluoric, phosphoric acids and concentrated alkalies)
  • Good for die-cut and automatic stamping
Product Properties

Density 12 lb/cu.ft
Tensile Strength: 100 PSI
Bursting Strength: 25 PSI (0.17 MPa)
LOI: < 9%
Working Temperature :1,800 °F. for Continuous Use, 2300 °F Maximum
Specific Heat (@2000°F): 0.27 Btu/lb °F

CeraTex® 3170 Ceramic Fiber Paper
Thermal Conductivity
Temperature BTU·in/hr·ft2(w/m·k)
@ 500ºF 0.38(0.05)
@ 1000ºF 0.61(0.09)
@ 1500ºF 0.94(0.14)
@ 2000ºF 1.40(0.20)
Product Applications

  • Insulation, lining and gasket for furnace, kiln, oven, stove, boiler and appliance;
  • Wrapping for high temperature pipe or metal casting;
  • Aerospace insulation, protection and shields;
  • Thermal insulation, gasket, seal, separator for ceramic and glass melting applications
  • Fire protection, spark and molten metal protection
  • High temperature electrical insulation
  • High temperature filtration
  • Seal, gasket or protection for other high temperature applications

Product Sizes and Options

Thickness: 1/32″, 1/16″, 1/8″, 1/4″ Width: 24″ and 48″

Also available with aluminum foil back