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| Customization: | Available |
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| Application: | Electrical Insulation, Fire Barrier, Sound Insulation, Thermal Insulation |
| Color: | Yellow |
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Product Description
The high temperature fireproof aramid sewing thread is designed for industrial sewing applications requiring extreme heat resistance, flame resistance, and mechanical strength, especially for thermal insulation blankets, welding blankets, and fireproof protective covers.
Manufactured by BSTFLEX, this thread is produced from twisted multifilament para-aramid (Kevlar® type) fibers, reinforced with stainless steel filament and optionally aramid-coated to enhance durability during high-temperature exposure.
The composite structure allows the thread to maintain stitching integrity where conventional threads fail due to heat, flame, or abrasion.
High tensile strength and cut resistance
Inherently flame resistant
Maintains integrity at elevated temperatures
Fine stainless steel filament integrated into the yarn
Improves heat resistance and dimensional stability
Enhances seam durability in extreme thermal zones
Twisted multifilament structure for sewing strength
Optional aramid surface coating
Smooth sewing performance with industrial machines
This design ensures reliable stitching performance in demanding thermal environments.
Fireproof and heat-resistant sewing
Maintains seam strength at high temperatures
Resists abrasion and mechanical stress
Suitable for continuous industrial thermal exposure
Extends service life of insulation and fireproof products
The thread is designed for industrial sewing, not for decorative textile use.
| Item | Description |
|---|---|
| Product Type | High Temperature Sewing Thread |
| Manufacturer | BSTFLEX |
| Base Fiber | Para-Aramid (Kevlar® Type) |
| Reinforcement | Stainless Steel Filament |
| Construction | Twisted Multifilament |
| Coating | Aramid (Optional) |
| Function | Fireproof & Heat-Resistant Sewing |
| Application | Insulation / Welding / Fireproof Blankets |
| Temperature Resistance | High-Temperature Industrial Use |
| Color | Natural Yellow / Custom |
| OEM Supply | Supported |
Removable thermal insulation blankets
Welding blankets and curtains
Fireproof protective covers
Exhaust and valve insulation systems
Industrial thermal protection products
This sewing thread is widely used where standard polyester or fiberglass threads are not suitable.
| Aspect | Aramid + Stainless Steel Thread | Standard Fiberglass Thread |
|---|---|---|
| Heat Resistance | Excellent | Good |
| Fire Resistance | Inherent | Limited |
| Mechanical Strength | Very High | Moderate |
| Seam Durability | Long-Term | Shorter |
| Industrial Suitability | Excellent | Moderate |
As a professional thermal materials supplier, BSTFLEX offers:
Different thread diameters and tex sizes
Stainless steel reinforcement options
Spool and cone packaging formats
OEM supply for insulation blanket manufacturers
Export-grade industrial packaging
Products are manufactured under controlled quality systems to ensure consistency.
Thread selection should be matched with fabric type, operating temperature, and sewing equipment to achieve optimal seam performance.
The high temperature aramid sewing thread reinforced with stainless steel manufactured by BSTFLEX provides reliable fireproof and heat-resistant stitching for insulation blankets and industrial thermal protection products.
With para-aramid multifilament construction, stainless steel reinforcement, and industrial-grade performance, it is a professional solution for extreme-temperature sewing applications.
| DATASHEET | ||||
| Part NO. | Size | TEX | Break Strength | Diameter |
| g/km | N | mm | ||
| BST-ARX-ST-302 | 30/2 | 40 | >31 | 0.10 |
| BST-ARX-ST-303 | 30/3 | 60 | >45 | 0.15 |
| BST-ARX-ST-304 | 30/4 | 70 | >58 | 0.18 |
| BST-ARX-ST-305 | 30/5 | 100 | >75 | 0.20 |
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