Brady Wire and Cable Flag Labels, Polypropylene 1.575" x 1.181" Black on White — 200/roll, BMP51/M511 Compatible

Brady B-425 polypropylene flag labels are pre-sized, thermal-transfer printable markers that wrap and flag small-diameter wires and data cables for clear, long-lasting identification.

These 1.575" H x 1.181" W black-on-white flag labels (200 per roll) are built for portable Brady printers like the BMP51 and M511, producing readable flags that stay attached in harsh environments. Made from a solvent- and temperature-resistant polypropylene with strong acrylic adhesive, the B-425 flags are designed to remain legible and bonded on low-diameter cables while still allowing easy removal when re-labeling.

How do these flag labels improve cable readability in tight spaces?

The unique flag shape provides a flat surface that extends away from the cable, giving more printable area than a typical wrap label. That extra space makes barcodes, numeric IDs, and text easier to scan or read without stretching or distorting characters. Because they are pre-cut to a compact size, they work well on bundles and crowded panels where standard labels can be hard to see.

• Pre-sized flag form increases visible print area on small-diameter cables
• Compatible with BMP51 and M511 for on-site printing
• Black-on-white contrast optimizes barcode and text readability
• 200 labels per roll reduces frequency of cartridge changes

Will these labels survive exposure to heat, chemicals, and oils?

B-425 flags are manufactured from a durable polypropylene film that resists many common industrial challenges. The material and acrylic adhesive are formulated to handle temperature swings and contact with oils and solvents better than ordinary paper labels. For definitive performance in extreme conditions, consult the product Technical Data Sheet (TDS) for lab-tested limits.

• Polypropylene film offers solvent and moisture resistance
• Strong acrylic adhesive maintains bond under temperature variation
• Meets certifications for electrical identification materials
• TDS available for material-specific test data and limits

Which printers and workflows are these roll labels compatible with?

These flags are intended for thermal transfer printing with Brady portable label printers and are pre-formatted to fit Brady BMP51 and M511 cartridges for quick, on-site labeling. Because they use thermal transfer ribbon, you can create crisp, long-lasting text and barcodes with standard Brady ribbons. The roll format simplifies batch printing and immediate application in field or shop environments.

• Optimized for Brady BMP51 and M511 portable printers
• Thermal transfer printing yields durable, high-contrast output
• Roll format enables efficient on-site label production
• Use with compatible Brady ribbons for best durability

How easy is it to remove or replace these cable flags during rework?

The strong acrylic adhesive is engineered to stay bonded during normal service yet permits removal when relabeling is required. On many cables the flags peel off cleanly without leaving excessive residue, but removal performance can vary by surface contamination and exposure history. For frequent relabeling, test removal on a sample cable to confirm the level of residue and adhesion.

• Acrylic adhesive balances long-term bond and removability
• Most installations allow clean peel-off for rework
• Test on a sample cable where frequent changes are expected
• Follow TDS for recommended removal methods if residue appears

Who is this for: the Brady B-425 flag labels are ideal for electricians, network installers, data center technicians, and maintenance teams who need compact, durable, and highly readable wire identification on small-diameter cables. They suit field technicians using portable printers, engineers organizing cable runs, and facilities staff requiring certified materials for industrial or commercial installations.