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Mattress Thread Buying Guide
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U.S. Thread, a division of Dunlap Industries Inc., offers Twaron™ thread that meets 16 CFR Part 1633. The thread is comprised of aramid fibers which increases the effectiveness of fire resistance due to its strength at high temperatures. This strength allows the seams and tape edges to stay sealed in order to keep out flames that could possibly break the FR barrier causing the materials inside to ignite.
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Product Features
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• High Tear Strength Combined with Excellent Cut Resistance at Very Low Specific Weight
• Good Permanent Heat Resistance • No Melting, No Dripping, Self-Extinguishing, Flame-Retardant • Good Abrasion Resistance, Resistance Against Most Chemicals • Good Electrical Insulation and Good Heat Isolation • Available as a Filament and Staple Fiber |
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Product Comparison
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Twaron™
Kevlar™
Heat Resistance
800° Degradation
800° Degradation
Sewability
Excellent
Excellent
Break Strength
Approximately 10 lbs.
Approximately 10 lbs.
Federal Specification
Meets F.A.R. 1632/1633
Meets F.A.R. 1632/1633
Flame Retardancy
482° Constant Temperature
482° Constant Temperature
Washing Temperature
141°F
141°F
| Twaron™ | Kevlar™ | |
|---|---|---|
| Heat Resistance | 800° Degradation | 800° Degradation |
| Sewability | Excellent | Excellent |
| Break Strength | Approximately 10 lbs. | Approximately 10 lbs. |
| Federal Specification | Meets F.A.R. 1632/1633 | Meets F.A.R. 1632/1633 |
| Flame Retardancy | 482° Constant Temperature | 482° Constant Temperature |
| Washing Temperature | 141°F | 141°F |
