Heat-shrink tube 18 mm x 1.5 m, black on yellow — replacement for Brother HSE-641

Heat-shrink tube 18 mm x 1.5 m, black on yellow — replacement for Brother HSE-641 is a heat-shrinkable labeling tape roll 18 mm wide and 1.5 m long, designed for permanent marking of cables, wires, terminals and small components. The black-on-yellow print provides high contrast for easy reading, while the heat-shrink sleeve ensures a compact, protected fit after application. The roll is intended as a replacement for HSE-641 compatible label printers and is suitable for indoor and protected outdoor use where mechanical and environmental protection of the marking is required.

Advantages

The heat-shrink tube provides a tight, shrink-fit marking that resists abrasion and displacement, improving identification durability on cables and connectors. High-contrast black text on a yellow background enhances legibility in dim or cluttered installations. The 18 mm width balances space for readable text and compact mounting in wiring ducts, terminal blocks and harnesses. As a heat-shrink solution, it offers additional mechanical protection compared with non-shrinking label tapes.

Suitable for

• Labeling and identifying cables, wires and harnesses in electrical installations
• Marking terminal blocks, connectors and component leads
• Panel and equipment marking where durable, compact labels are needed
• Industrial and commercial environments requiring protected legible identification

Key specifications

• Material type: heat-shrinkable sleeve suitable for marking
• Printable area width: 18 mm
• Length per roll: 1.5 m
• Text/background color: black on yellow for high contrast
• Adhesion/fit: shrinks to provide tight fit around cables and cylindrical components when heat is applied

How to use

Select text and print using a compatible label printer that accepts HSE-641 format replacement rolls. Cut sections to the required length, slide each printed sleeve over the cable, wire or component, and apply heat evenly using a heat gun, hot air tool or compatible shrink device until the sleeve uniformly conforms to the substrate. Allow to cool briefly before handling to ensure the sleeve has fully contracted and the print has set.

Usage recommendations

For reliable results, use a compatible printer setting for heat-shrink materials and allow sufficient shrink time and temperature according to the heat source. Avoid overheating near temperature-sensitive components; test a sample sleeve on representative wire diameter to confirm shrink fit and print legibility before large runs. Store the roll in a cool, dry place away from direct sunlight to maintain print and material quality.