ANEGUARD USING KEVLAR® 36

KEVLAR® 36 fire-resistant thread is a high-tech sewing material designed for use in conditions of extreme heat, friction, and mechanical stress. It is based on Kevlar® aramid fiber, known for its incredible strength and heat resistance.

Thanks to its special structure and weave density, KEVLAR® 36 maintains its integrity even at temperatures above 350°C, does not melt, does not support combustion, and does not lose strength when exposed to flame. These threads are used in the production of workwear, footwear, heat-resistant gloves, and industrial textiles where maximum protection from fire and wear is essential.

Composition and Production Technology

KEVLAR® Thread 36 is made from long aramid fibers obtained by the polycondensation of para-phenylenediamine and terephthaloyl. This composition gives the material the strength of steel and the lightness of synthetics.

Production features include:

• multifilament structure, providing uniform tension and tear resistance;
• heat-stabilized treatment, preventing shrinkage when heated;
• high weave density, which increases wear and abrasion resistance;
• stable yellow-gold color, characteristic of original Kevlar®.

KEVLAR® Thread; 36 has a balanced thickness and strength, so it works well in both industrial sewing machines and hand sewing techniques.

Key characteristics of KEVLAR® 36 fire-resistant thread

1. Heat resistance up to +370°C — the thread retains its strength even when directly exposed to heat.
2. Flammability — the material is self-extinguishing, which is especially important for fire-resistant products.
3. High tensile strength — up to 20% higher than traditional polyester threads.
4. Abrasion resistance — does not break down under friction, does not fluff, and does not lose shape.
5. Chemical resistance — Resistant to oils, solvents, and weak acids.
6. Minimal stretch—the seam remains stable even under repeated loads.

Where is KEVLAR® 36 fire-resistant thread used?

1. Industrial workwear

This thread is used for sewing suits for welders, firefighters, metalworkers, and workers in the oil, gas, and energy industries. It guarantees seam strength and resistance to open heat sources.

2. Flame-resistant gloves and equipment

KEVLAR® 36 is used for stitching heat-resistant gloves, mittens, elbow pads, and other equipment. The material protects hands from burns, sparks, and cuts.

3. Footwear Manufacturing

In footwear for special services and rescuers, the thread is used to reinforce the seams of the sole and upper. It withstands heat, contact with asphalt, oil, and metal.

4. Technical Textiles and Accessories

KEVLAR® 36 is suitable for the manufacture of thermal insulating covers, belts, filters, and protective covers for equipment.

5. Aviation and Automotive Industry

The thread is used in thermal insulation elements, safety systems, and components operating under vibration and heat.

Advantages of Using KEVLAR® Thread 36

Increased safety — seams are non-flammable and retain their structure even with brief exposure to flame.

Product durability — workwear and equipment last significantly longer, maintaining their shape and functionality.

Resistance to operational loads — the thread withstands repeated friction, bending, and washing without losing its properties.

Stable appearance — does not fade under UV light and maintains an aesthetic appearance.

Compatibility with most fabrics — suitable for cotton, synthetics, leather, membrane materials, and combined fabrics.

How to choose KEVLAR® 36 for your production

Before choosing, it is important to consider:

1. Product type — a thin thread (Tex 20-30) is suitable for lightweight fabrics, while a reinforced thread (Tex 40-60) is suitable for dense fabrics.
2. Temperature conditions — for long-term use at elevated temperatures, a thread with additional heat stabilization is recommended.
3. Color and appearance — the standard shade of KEVLAR® is yellow, but variations are possible to visually match the fabric.
4. Sewing equipment — KEVLAR® 36 is compatible with industrial machines when using reinforced needles and Teflon guides.

Recommendations for working with KEVLAR® 36

Use carbide-tipped needles to avoid abrasion.

Set the thread tension to medium—too much tension can cause the threads to break.

When ironing finished items, avoid direct contact between the iron and the thread.

Store spools in a dry, dark place at room temperature.

Following these recommendations will help maximize the material’s potential and extend the life of your sewing equipment.

Conclusion

KEVLAR® 36 flame-resistant thread is a professional solution for those who value reliability, safety, and durability. It is resistant to high temperatures, mechanical damage, and aggressive environments. Using this thread guarantees the quality and safety of seams even under the most extreme conditions.

KEVLAR® 36 is the choice of manufacturers of workwear, footwear, and protective equipment who do not compromise on comfort and safety.