3M™ Nextel™ GT-23 Sewing Thread is a high-performance ceramic fiber sewing thread designed for stitching materials that must withstand extreme temperatures, oxidation, and demanding industrial environments. Manufactured by 3M as part of the advanced Nextel ceramic fiber product family, this thread is widely used in aerospace thermal insulation systems, high-temperature fabrics, and industrial heat-resistant textile assemblies.
Produced from advanced alumina-based ceramic fibers, Nextel™ GT-23 offers excellent heat resistance, flame resistance, and chemical stability. Compared to conventional sewing threads such as fiberglass or aramid, it provides superior durability and strength retention at elevated temperatures, making it ideal for sewing ceramic fabrics, high-silica textiles, and high-temperature insulation blankets.
With excellent thermal performance and mechanical durability, 3M™ Nextel™ GT-23 sewing thread is commonly used in aerospace insulation components, furnace insulation covers, fire-resistant protective textiles, and high-temperature expansion joints.
Nextel™ GT-23 sewing thread is engineered for reliable stitching of advanced thermal insulation materials used in extreme heat environments. Its ceramic fiber composition ensures seams maintain strength, flexibility, and resistance to heat degradation during long-term exposure to high temperatures.
The thread delivers consistent seam performance for high-temperature fabrics and insulation products, making it suitable for demanding industrial and aerospace applications.
| Material Type | Ceramic Fiber Sewing Thread |
| Fiber Composition | Alumina-Based Ceramic Fiber |
| Continuous Operating Temperature | Up to ~1000°C – 1100°C |
| Density | ~2.7 g/cm³ |
| Filament Diameter | ~10 – 12 µm |
| Thread Construction | Multi-filament twisted thread |
| Tensile Strength | High-strength ceramic filament |
| Color | White / Off-White |
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