Brady B-427 Self-Laminating Vinyl Label Cartridge for BMP21-PLUS, BMP21-LAB, M210, M211 – 25.4mm x 19.05mm, White/Translucent, Permanent Acrylic, Thermal Transfer (M4-128-499)

Wire and cable identification in harsh environments demands labels that stay put, remain legible, and resist abrasion, chemicals, and UV exposure. The Brady B-427 self-laminating vinyl label cartridge solves this by combining a printable white area with a clear laminating tail that wraps around the label to protect the print. Designed for use with Brady BMP21-PLUS, BMP21-LAB, M210, and M211 thermal transfer printers, this cartridge delivers durable, professional labels for wires, cables, components, tubes, vials, and general-purpose marking.

Who is it for

Electricians, network technicians, laboratory staff, and maintenance crews who need reliable identification for wires and small components. Ideal for those working with glass flasks, plastic jugs, well plates, and other smooth surfaces where aggressive tack and wide temperature performance are required.

Main features

• Self-laminating design: clear vinyl tail wraps over printed text to protect against smudging, abrasion, and chemicals.
• Permanent acrylic adhesive with aggressive tack adheres to smooth and rough surfaces, including glass, plastic, and powder-coated metals.
• Wide temperature range: -40°C to 70°C (-40°F to 158°F) for use in freezers, ovens, and outdoor environments.
• Thermal transfer printing ensures crisp, high-contrast text that resists fading.
• Matte finish reduces glare for easy reading in varied lighting.
• Compatible with Brady BMP21-PLUS, BMP21-LAB, M210, and M211 label printers.
• UL Recognized, CSA Accepted, and RoHS Compliant for safety and environmental standards.

Specifications

• Material: B-427 self-laminating vinyl (white printable area, translucent laminating area)
• Total label size: 25.4 mm width x 19.05 mm height (1.00" x 0.75")
• Printable area height: 9.53 mm (0.375")
• Roll length: 3.05 m (10 ft)
• Wire diameter range: 3.2 mm to 5.1 mm (16-10 AWG)
• Adhesive: permanent acrylic
• Print technology: thermal transfer
• Finish: matte
• Resistance: abrasion, chemicals, oil, water, UV light
• Compliance: UL Recognized, CSA Accepted, RoHS Compliant

Tips

For best results, clean the surface with isopropyl alcohol before applying the label. When wrapping wires, ensure the clear laminating tail overlaps the printed area by at least 3 mm to fully seal the text. Store unused cartridges in a cool, dry place to maintain adhesive quality.