Heat-shrink PermaSleeve tubing Brady M6-1000-1-342-WT — marker sleeve for wire identification

Brady PermaSleeve Heat-Shrink tubing M6-1000-1-342-WT is a heat-shrink marker sleeve engineered for permanent wire and cable identification. The sleeve shrinks to conform tightly to conductors when heated, creating a durable surface suitable for printed or handwritten markings. Designed for electrical, control panel and wiring harness applications, this marker sleeve enables compact, long-lasting labeling of wires in confined or high-density installations.

Advantages

The PermaSleeve marker sleeve delivers a consistent shrink profile and a stable marking surface after application. Its construction provides good adhesion to the conductor and resists abrasion, moisture and common environmental contaminants encountered in electrical and industrial settings. The sleeve's ability to accept printed or written identification ensures flexibility for different labelling workflows and improves traceability of wiring systems.

Suitable for

• Identification of single conductors in control panels and switchgear
• Labeling wires within wiring harnesses and cable assemblies
• Permanent marking in industrial, commercial and building electrical installations
• Applications requiring compact labels on small-diameter wires

Key specifications

• Material: heat-shrinkable polymer designed for electrical insulation and marking
• Pre-shrink diameter and shrink ratio engineered to conform to conductor shapes when heated
• Color: white marking surface suitable for printing and handwriting
• Intended use: permanent identification of wires and cables after heat application
• Temperature performance suitable for typical electrical and panel environments

How to use

Slide the PermaSleeve marker sleeve onto the wire before final termination, position the sleeve so the marking area will be visible after installation, then apply heat evenly using a heat gun or approved heat source until the sleeve shrinks and conforms to the conductor. Allow the sleeve to cool, then apply printed or handwritten identification as required. Ensure the wire and sleeve are clean and free of oil or debris before marking to achieve optimal adhesion and legibility.

Usage recommendations

For best results, verify compatibility of the heat source and temperature with surrounding materials and components. Use appropriate printing methods or permanent-ink pens designed for plastics to maximize the durability of the identification. When labeling in high-vibration or harsh environments, confirm that the applied sleeve fully conforms to the conductor and that markings remain legible after a short operational test.