Silica Woven Textiles and Fabric - SILTEX®

The SILTEX® silica fabric and textiles are high-temperature resistant materials with a continuous operating temperature of 1800 °F (982 °C). These fabrics from Mid-Mountain can be used in a variety of configurations, including silica fabrics and silica mat.

Extensively used for equipment and personnel protection in industries such as shipbuilding, welding, metals processing, foundries, power generation, refineries, and petrochemical, the SILTEX® woven fabrics and textiles can be applied to applications where thermal insulation is vital to the reduction of energy and maintenance costs.

The SILTEX® silica fabrics and textiles are composed of high purity, high strength 96% amorphous silica fibers, and are optimal in applications where E-glass fabrics would generally fail.

Silica Fabric Applications

  • Welding curtains, blankets, and pads
  • Thermocouple insulation
  • Fire-resistant doors
  • Diesel engine exhaust covers
  • Turbine insulation
  • Furnace insulation
  • Furnace pads and separators

Silica Fabric Features

  • Low thermal conductivity
  • Low smoke emission
  • Low halogen content
  • Chemical stability and oxidation resistance
  • Resists molten metals
  • High dielectric strength
  • Maintains flexibility and strength during use
Style Weave Weight
18-UH 8 Harness Satin 18 0.027 36
18-UH-AR 8 Harness Satin 18 0.026 36
21-AL 8 Harness Satin 21 0.026 26
36-UH 12 Harness Satin 36 0.067 36
36-UH-AR 12 Harness Satin 36 0.068 36
46-UH Double Plain Weave 46 0.12 40
70-UH Double Plain Weave 70 0.155 40


Product Type Width/Diameter Thickness
Tape Woven
1" to 6"
1/2" to 12"
0.015" to 0.100"
0.050" to 0.200"
Sleeving Braided 1/4" to 4-1/2" 0.031" to 0.125"
Rope Braided 1/8" to 1"  


Material Operating Temperature Tensile Strength
98% Amorphous Silica 1800 °F • 982 °C 3.8 150 3300

SILTEX® 36-UH Woven Silica Fabric is an FM Approved product for use in Welding Curtains.

Silica Woven Textiles and Fabric - SILTEX®

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