Flameguard Aramid Kevlar® Fireproof Thread

Flameguard Kevlar® Fire Retardant Thread
Extremely strong, yet lightweight and durable.
This fiber is five times stronger than steel by weight. It also has good resistance to heat over short periods of time. Uses for Kevlar® are applications that have very high stress points, and need to withstand moderate heat.

What Is Flameguard Para-Aramid Thread?
Flameguard is a 100% para-aramid (Kevlar®) thread with inherent flame resistance built into the fiber itself. Unlike treated threads that can lose their protective properties over time, this thread does not ignite, melt, or degrade when exposed to extreme heat and open flames. The thread maintains its structural integrity at temperatures that would cause nylon, polyester, and cotton threads to fail, making it necessary for high-temperature and fire-exposure applications. Compared to standard industrial threads, aramid fibers provide significantly higher heat resistance, greater tensile strength, and better dimensional stability under stress.

Features:

• 100% Kevlar® is inherently flame resistant and doesn't ignite, melt or degrade in heat
• Exceptional heat resistance up to 500°F continuous use
• Very high tenacity and tensile strength for demanding projects
• 100% para- aramid fiber with inherent flame resistance
• Low stretch characteristics maintain stable seams under stress
• Superior UV resistance compared to standard fire-retardant threads
• Sewing performance similar to bonded nylon for easier handling
• Chemical resistance is suitable for industrial work environments

Common Applications

Based on our customer base and decades of supplying industrial sewing operations, Flameguard para-aramid thread is most used in these applications:

• Firefighter Turnout Gear: Protective outer shells, thermal liners, and moisture barriers requiring flame-resistant seams that meet NFPA standards
• Welding Apparel: Gloves, aprons, jackets, and protective sleeves exposed to sparks, spatter, and radiant heat
• Heat-Shield Products: Industrial curtains, tarpaulins, and protective covers for foundries and metal processing facilities
• Bullet-Resistant Vests: Body armor and ballistic protection panels requiring aramid fiber construction throughout
• Industrial Safety Clothing: High-temperature work garments for foundries, metal fabrication, glass manufacturing, and petrochemical facilities
• Protective Equipment: Fire blankets, welding curtains, insulation covers, and heat-resistant storage solutions
• Military and Tactical Gear: Combat uniforms, flight suits, and equipment requiring compliance with military flame resistance specifications

How Flameguard Para-Aramid Compares
Para-aramid thread delivers performance characteristics that set it apart from conventional industrial threads like nylon, polyester, and cotton. After working with manufacturers for over 30 years, we've learned when aramid thread is worth the higher cost and when standard threads are adequate.

• Flame Resistance: Kevlar®/Para-aramid will not ignite or melt; nylon and polyester melt and burn readily at 400-500°F
  
• Heat Tolerance: Maintains strength at temperatures up to 500°F; standard threads degrade rapidly above 300°F
  
• Dimensional Stability: Very low stretch under load (approximately 3-4%); nylon can stretch 15-20%
  
• Application Focus: Required for protective and safety gear where failure could cause injury; general threads suited for standard sewing
  
• Cost Consideration: Aramid thread costs 3-5 times more than polyester but is necessary for certified protective equipment

Sold per spool.

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