uxcell Fiberglass Insulation Braid Sleeve 12mm x 3m

uxcell insulation braid sleeving is a 12mm, 9.8-foot alkali-free fiberglass tube engineered to protect wiring and components from high temperatures while keeping harnesses tidy.

This fiberglass heat sleeve combines a heat-processed alkali-free weave with a light binder coating to deliver a thin, flexible protective wrap rated for a wide temperature band. With a 0.35mm wall and VW-1 flame resistance, it’s intended for routing around motors, engines, fuel lines, spark plug wires, decorative lighting, and other situations where heat shielding and organization are needed. The product is non-metallic, lightweight, and trims easily to length for custom installations.

How hot can this fiberglass sleeve tolerate?

The sleeving is designed for demanding thermal environments and withstands temperatures from -30°C up to +600°C, making it suitable where conventional polymer sleeves fail. It maintains structural integrity across repeated heat cycles and provides a thermal barrier to reduce radiant and conductive heat transfer.

• Working temperature range: -30°C to +600°C
• Alkali-free fiberglass construction for high-temperature stability
• VW-1 flame-resistance rating for additional safety

Will this sleeve fit my wires and how do I use it?

The sleeve has a 12mm inner diameter and a thin 0.35mm wall, so it fits small harnesses, single conductors, and grouped wires. Slide wires through before routing or split the tube lengthwise for retrofit work; it trims with scissors for exact lengths.

• Inner diameter: 12mm (clearance for small bundles or single cables)
• Length: 3.0 meters (9.8 feet) for multiple runs or long harnesses
• Easy to cut and shape; can be slit for post-installation application

Where is this heat shield tubing best applied?

Use it wherever wiring or small pipes are exposed to elevated temperatures or need neat routing. Typical installations include automotive engine bays, industrial motors, lighting assemblies, and around fuel or exhaust components where thermal protection and organization are required.

• Automotive: spark plug wires, engine harnesses, and fuel line routing
• Industrial: motor leads and heat-exposed cable runs
• Home/lighting: decorative lights and fixtures near heat sources

Are there safety or compatibility considerations I should know?

This sleeve is not a current-carrying conductor and won’t replace proper wire sizing or overload protection. If a wire carries more current than recommended, it will heat up; adding insulating sleeving can reduce cooling and increase the risk of melting the wire’s insulation—upgrade conductor gauge or reduce load when necessary.

• Working voltage range: 500V–800V; not a substitute for correct electrical design
• Do not rely on sleeving to cool overloaded conductors—select correct wire gauge
• Trims easily but avoid frayed ends; seal cut edges if required

Who is this for: uxcell’s fiberglass braid sleeving is aimed at DIY mechanics, electrical technicians, hobbyists and light industrial users who need a compact, high-temperature sleeve to organize and shield wiring or small lines. If you work on engines, motor assemblies, decorative lighting near heat, or any application requiring a thin yet heat-tolerant barrier, this product offers an affordable, easy-to-install option. For circuits with high continuous current, pair this sleeve with appropriate wire upgrades and safe electrical practices.