3M™ Nextel™ AT-21 Sewing Thread Supplier & Exporter in India
Premium 3M™ Nextel™ AT-21 Sewing Thread
Marshall Packings & Insulations Industries is a trusted supplier and exporter of 3M™ Nextel™ AT-21 Sewing Thread, a premium high-temperature ceramic sewing thread engineered for stitching, quilting, and joining ceramic textile products used in extreme heat environments.
Manufactured from 3M™ Nextel™ 312 continuous ceramic oxide fibers and wrapped with a rayon support fiber for improved sewability, Style AT-21 offers excellent flexibility, abrasion resistance, and high-temperature performance. It is specifically designed for sewing Nextel™ 312 fabrics, tapes, braided sleeves, insulation blankets, and thermal protection systems, making it an ideal choice for aerospace, industrial furnace, power generation, and high-temperature insulation applications.
3M™ Nextel™ AT-21 Sewing Thread is a specialized high-temperature ceramic sewing thread designed for reliable stitching, quilting, and joining of ceramic textile products. Its combination of ceramic oxide fibers and rayon support fiber provides improved sewability while maintaining the performance required for demanding thermal environments.
Designed for use with Nextel™ 312 fabrics, tapes, braided sleeves, and insulation blankets, AT-21 Sewing Thread provides excellent abrasion resistance, oxidation resistance, flexibility, dielectric insulation, and long-term performance under repeated thermal cycling.
Key Features of 3M™ Nextel™ AT-21 Sewing Thread
- Manufactured using 3M™ Nextel™ 312 ceramic oxide fibers.
- Style AT-21 high-temperature sewing thread.
- Wrapped with rayon support fiber for improved sewability.
- Excellent abrasion resistance.
- Outstanding flexibility during sewing operations.
- Excellent oxidation resistance.
- High-temperature performance.
- Excellent dielectric and electrical insulation.
- Compatible with ceramic fabrics, tapes, and braided sleeves.
- Suitable for industrial sewing and quilting.
- Long service life in demanding environments.
- Designed for specialized high-temperature sewing applications.
Technical Advantages
- Specifically developed for sewing ceramic textile products.
- Maintains flexibility and strength under elevated temperatures.
- Excellent seam integrity for insulation blankets and thermal barriers.
- Superior resistance to oxidation and thermal degradation.
- Low shrinkage after repeated thermal cycling.
- Ideal for aerospace thermal protection systems.
- Reliable stitching for furnace insulation products.
- High abrasion resistance improves sewing performance.
- Compatible with specialized industrial sewing equipment.
- Delivers consistent long-term performance.
Typical Physical Properties
| Property | Typical Value |
| Product Type | High Temperature Ceramic Sewing Thread |
| Product Name | 3M™ Nextel™ AT-21 Sewing Thread |
| Fiber Composition | 3M™ Nextel™ 312 Ceramic Oxide Fiber with Rayon Support Fiber |
| Style | AT-21 |
| Thread Diameter | Approx. 0.020 in (0.51 mm) |
| Approximate Yield | 1590 yd/lb (3200 m/kg) |
| Breaking Strength | Approx. 33 lb (15 kg) with sizing |
| Color | White |
| Abrasion Resistance | Excellent |
| Oxidation Resistance | Excellent |
| Temperature Performance | Suitable for High Temperature Applications |
Typical values are for reference only and should not be used as product specifications.
Applications of 3M™ Nextel™ AT-21 Sewing Thread
3M™ Nextel™ AT-21 Sewing Thread is suitable for stitching, quilting, joining, and fabrication of high-temperature ceramic textile and insulation products.
- Sewing high-temperature fabrics.
- Ceramic insulation blankets.
- Thermal insulation jackets.
- Braided sleeves.
- Ceramic tapes.
- Aerospace thermal protection systems.
- Industrial furnace insulation.
- Fire-resistant textile assemblies.
- Expansion joints.
- Heat shields.
- High-temperature protective covers.
- Electrical and thermal insulation products.
Industries Served
Aerospace Industry
Defense Industry
Power Generation Industry
Petrochemical Industry
Steel Industry
Foundries & Metal Processing
Automotive Industry
Glass Manufacturing
Industrial Furnaces
Advanced Composites
Why Choose Marshall Packings & Insulations Industries?
- Experienced manufacturer of advanced high-temperature textile products.
- Premium quality raw materials.
- Consistent product quality and performance.
- Custom specifications available.
- Global supply capability.
- Technical support for industrial applications.
- Competitive pricing with reliable delivery schedules.
Looking for High Temperature Alumina Fiber Yarn?
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