Brady M4-143-427 White Polyolefin Heat Shrink Label for BMP41/BMP51/BMP53/M511 – 41.28 mm x 2.13 m

With an operating range from -55°C to 135°C, this Brady M4-143-427 label thrives in extreme industrial environments where lesser markers fail. Crafted from B-342 PermaSleeve® polyolefin, it delivers a 3:1 shrink ratio that conforms tightly to wires and cables, ensuring a permanent, legible identification even on uneven surfaces.

Overview

The Brady M4-143-427 is a high-performance, heat-shrinkable label designed for durable wire and cable marking. Compatible with Brady BMP®41, BMP®51, BMP®53, and M511 thermal transfer printers, it produces crisp, smudge-resistant text that withstands chemicals, oil, fuel, and solvents. The matte white finish enhances print contrast, while the flame-retardant, self-extinguishing material adds safety in high-risk applications.

What stands out

• Wide operating temperature range (-55°C to 135°C) for extreme conditions
• 3:1 shrink ratio ensures a snug fit around cables and wires
• Matte finish enhances print legibility and durability
• UL Recognized (UL 224) and CSA Accepted, meeting rigorous safety standards
• RoHS compliant for environmental safety

Technical details

• Material: B-342 PermaSleeve® Polyolefin
• Label width: 41.28 mm (1.625 inches)
• Roll length: 2.13 m (7 feet)
• Wire gauge compatibility: 16 – 10 AWG
• Wire diameter range: 2.79 – 5.33 mm (0.11 – 0.21 inches)
• Material thickness: 0.254 mm (0.010 inches)
• Core diameter: 25.4 mm (1 inch)
• Print technology: Thermal transfer
• Minimum shrink temperature: 120°C (248°F)

Our verdict

If you need a label that survives harsh conditions and stays legible, the Brady M4-143-427 is a top choice for industrial wire and cable identification.