MECCANIXITY Heat Shrink Braided Cable Sleeve 1 3/8"

If you need a durable, flexible way to protect cable bundles, this heat-shrinkable PET sleeve is designed to compress around wiring when heated, reducing abrasion, noise, and bulk while keeping harnesses neat. The sleeving arrives as a long braided tube that halves in diameter at operating heat, clings to surfaces, and withstands typical electrical and thermal stresses for routing and bundling jobs.

How does this sleeve protect cables during routing and movement?

When exposed to heat, the braided PET material contracts and forms a tighter cover over cables, limiting wear from friction and reducing vibration noise. The woven construction also adds tear resistance and thermal insulation without becoming rigid, so it flexes with bends and corners.

• Shrinks to roughly half its original diameter for a snug fit
• Woven PET reduces abrasion and dampens rattling
• Flexible enough for tight bends and repeated motion
• Rated for up to 600V electrical isolation in normal use

What sizes and temperature limits should I plan for?

This roll is 35mm (1 3/8") in diameter and 12m (40ft) long before shrinking, with a 2:1 shrink ratio. It handles temperatures between 50–150℃ (122–305℉), so use it within that window to ensure proper contraction and long-term performance.

• Original diameter: 35mm / 1 3/8"; length: 12m / 40ft
• Shrink ratio: 2:1 — expect close, conforming coverage after heat
• Temperature resistance: 50–150℃ (122–305℉)
• Voltage resistance: up to 600V — suitable for many harness applications

How do I cut, install, and secure the sleeving for a clean finish?

Measure the cable length, then seal-cut the sleeving with a heated blade or hot tool to prevent fraying. Slide the sleeve over the bundle, apply heat evenly with a heat gun or controlled source until it compresses, and finish with ties or adhesive if extra strain relief is needed.

• Measure before cutting to avoid waste and mismatched lengths
• Use a hot knife or lighter briefly to seal cut ends against unraveling
• Thread cables through the tube, then heat evenly for uniform shrink
• Optional: secure ends with heat-shrink tubing, clips, or cable ties

Where is this sleeving best applied in real projects?

Its combination of flexibility and abrasion resistance makes it ideal for automotive harnesses, marine and rail installations, server room cable management, and any application where multiple conductors need protection but must remain pliable. The long length allows covering several runs or stocking for future work.

• Automotive, marine, and rail wiring harness protection
• Network and server cable bundling to improve airflow and aesthetics
• DIY electronics, robotics, and home theater cable management
• Repairs and retrofits where conforming, flexible protection is needed

Who is this for: Installers, system builders, hobbyists, and maintenance technicians who require a resilient, heat-activated sleeve for bundling and protecting multiple cables. If you want a reusable spool of woven PET sleeving that shrinks to form a tight, abrasion-resistant cover while remaining flexible for bends and movement, this MECCANIXITY 1 3/8" x 40ft heat shrink sleeve is a practical choice.