Massachusetts Institute of Technology (MIT)
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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(oz/sy) | Thickness(in) | Width(in) |
|---|---|---|---|---|
| 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 | WovenKnit | 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(lbs.) | Tex(g/km) | Yield(ly/lb) |
|---|---|---|---|---|
| 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.

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