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Black-on-yellow heat-shrink sleeve cartridge on white roll

Brady

Brady BMP21 B-342 PermaSleeve 250 Black/Yellow .094-.215 -67 to 267F

SKU CH-BV6W-T9E69 MPN BMP21

Heat-shrink polyolefin sleeves mark wires from .094 to .215 in and withstand -67 to 267 °F

  • TypeEmergency Exit Signs & Lights Accessories
  • Black-on-yellow print stays readable on every wire
  • B-342 PermaSleeve polyolefin resists oils and solvents
  • 3:1 shrink ratio grips cables from .094 to .215 in
  • Survives continuous exposure from -67 to 267 °F
  • Continuous 7 ft roll feeds BMP21 series printers without waste

Wire-marking heat-shrink sleeves

Brady BMP21 B-342 PermaSleeve sleeves are continuous heat-shrink polyolefin tubes printed black on yellow for wire identification. They shrink at a 3:1 ratio to fit wires from 0.094 in to 0.215 in diameter. The material withstands temperatures from -67 °F to 267 °F. Rolls are made for BMP21, BMP21-PLUS, BMP21-LAB, ID Pal and Lab Pal printers.

Users needing durable wire labels

Electricians and technicians who need permanent, legible wire markers that survive oil, abrasion and extreme temperatures will find these sleeves suitable. Installers without a compatible Brady printer cannot use this continuous supply. Buyers wanting pre-printed legends or colour codes other than black on yellow must look elsewhere.

Printer compatibility decides fit

The sleeves only work with BMP21, BMP21-PLUS, BMP21-LAB, ID Pal and Lab Pal label printers. If your printer is not one of these models the roll will not feed or print correctly. No other hardware or software requirement is specified.

Highlights

  • Black-on-yellow print stays readable on every wire
  • B-342 PermaSleeve polyolefin resists oils and solvents
  • 3:1 shrink ratio grips cables from .094 to .215 in
  • Survives continuous exposure from -67 to 267 °F
  • Continuous 7 ft roll feeds BMP21 series printers without waste

Specifications

TypeEmergency Exit Signs & Lights Accessories
BrandBrady

Questions about this item

How often will the B-342 PermaSleeve roll need replacing during regular wire-marking tasks?

Each roll supplies 7 ft of continuous heat-shrink tubing, so replacement frequency depends on the total length of wire you mark and the sleeve length you cut for each identification.

What wire diameter range defines the limit for a secure shrink fit on the BMP21 sleeves?

The sleeves accommodate wires from .094 in up to .215 in; outside that range the 3:1 shrink ratio cannot guarantee a tight, permanent grip.

How much heat does the BMP21 printer generate when printing full rolls of B-342 PermaSleeve material?

The printer’s operating temperature stays within the sleeve’s rated range of -67 to 267 °F, so extended printing sessions do not add excess heat beyond normal ambient conditions.

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