Kevlar Sewing Thread
Special Price £35.99 £29.99 Regular Price £96.00 £80.00

Kevlar / Para-Aramid Sewing Thread provides exceptional high-temperature resistance and strength. Its high durability and resistance to corrosive chemicals and abrasion make it ideal for tough, high-temperature applications.
Learn More
Fiberglass Sewing Thread With Wire
Special Price £96.00 £80.00 Regular Price £144.00 £120.00

Vitcas Fibreglass Sewing Thread Reinforced with Wire is high strength and resistant to corrosive, harmful acids and alkalis. It is also highly heat resistant at 600°C. The glass fibre sewing thread with wire can be used for machine stitiching of e.g. fire protective clothing etc.
Learn More
Fiberglass Sewing Thread
Special Price £72.00 £60.00 Regular Price £120.00 £100.00

Glass Fibre Sewing Thread with PTFE Coating is resistant to 600°C / 1110°F. The PTFE coating adds flexibility to the fibreglass sewing thread which makes it suitable for sewing heat resistant fabrics and protective clothing to wear in high temperature industrial settings.
Learn More
Silica Fibre Sewing Thread
Special Price £96.00 £80.00 Regular Price £144.00 £120.00

Vitcas Silica Fibre Sewing Thread can be used in high temperature industrial applications due to its very high heat resistance at 1400°C / 2552°F. The silica fibre thread has high tensile strength making it very suitable for sewing fire blankets, welding and fireproof garments, as well as insulating products.
Learn More

Sewing Threads

High Temperature Sewing Threads - Heat-Resistant Stitching

Vitcas offers a comprehensive range of high-temperature sewing threads designed for assembling and repairing thermal insulation systems, fire protection products, and technical textile components. These threads are constructed from heat-resistant fibres, with selected options reinforced with stainless steel wire to enhance thermal durability, tensile strength, and seam stability under extreme conditions. Suitable for manual and automated industrial sewing operations, these threads ensure reliable performance in continuous temperatures up to 600°C (1110°F).

Technical Sewing Threads for Heat and Mechanical Stress

Withstands continuous heat exposure up to 600°C
High tensile strength for secure, long-lasting seams
Resistant to flame, abrasion, and chemical attack
Suitable for use with glass fibre, coated fabrics, para-aramid and silica fibre cloths, and technical insulation materials
Available in multiple fibre types for diverse applications

Range of Heat Resistant Sewing Threads:

Glass Fibre Sewing Thread: A reliable general-purpose thread for high-temperature insulation fabrics
Stainless Steel Reinforced Glass Fibre Thread: Offers added strength and thermal resistance for demanding stitching tasks
Silica Fibre Thread: Ideal for heavy-duty applications such as fireproof garments and fire-resistant insulation
Para-Aramid Sewing Thread: Combines high tensile strength with good flame resistance for protective wear and fire barriers

Fire Resistant Sewing Thread Applications

Removable Insulation Jackets: Sewing insulation pads and covers for pipework, vessels, and ducting
Fire Curtains and Blankets: Constructing high-temperature barriers for industrial and commercial fire protection
Protective Clothing: Used in the production of PPE for welding, foundry work, and high-heat exposure environments
Industrial Filters: Stitching seams in thermal filter bags for dust and gas control in high-temperature systems
Gaskets and Expansion Joints: Fabricating flexible, heat-resistant textile seals for dynamic thermal equipment