Brady - When Performance Matters Most
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Brady - When Performance Matters Most

Brady B-342 Thermal Transfer / Dot Matrix Printable Nylon Cloth Label

Brady's non-adhesive, printable heat shrink wire marking sleeves fit around wires or cables for maximum insulation protection and permanent identification. Brady's heat shrink sleeving is a full-circle design that provides fast and permanent wire marking. Clear, legible text can be printed on the wire and cable sleeving with a Brady printer for reliable wire identification. Brady heat shrink sleeving materials excel in extreme environments, including temperature fluctuations and environments that require abrasion and chemical resistance. Brady offers a variety of materials available to print using thermal transfer and dot matrix printers. B-342 3:1 heat shinkable sleeves for wire identification and insulation purposes are fade resistant and fire retardant. B-342 is available in white, yellow, black, red, orange, green, blue, violet, pink, gray, and brown.

Material Description

  • Print Technology: Thermal transfer and dot matrix
  • Material Type: Irradiated polyolefin heat shrink tubing (3:1 shrink ratio)
  • Temperature Range: -55°C (-67°F) to +135°C (+275°F)
  • Shrink Method: Any industrial grade heat gun may be used to shrink B-342 Markers.

Recommended Thermal Transfer Ribbons
Thermal transfer ribbons are only needed for labels that do not have self-contained print ribbons.

  • Brady R6600 Series for thermal transfer printing - best smear and chemical resistance
  • Brady R4300 Series for thermal transfer printing - general purpose ribbon
  • Brady R4502S for thermal transfer printing silver on dark colored markers
  • Brady R6000 Series Halogen Free (previously known as R6000HF)
  • Brady R6700 for thermal transfer printing white on dark colored markers
  • Brady R5000 Series for dot matrix printing

Regulatory & Agency Approvals

  • UL: B-342 is a UL Recognized Component to UL224 Extruded Insulated Tubing. See UL file E333786 for specific details. UL information can be accessed on line at UL.com. Search in Certifications area.
  • RoHS 2005/618/EC: As of January 2009, Brady began the transition to full RoHS compliant B-342 to 2005/618/EC MCV amendment to RoHS Directive 2002/95/EC. To determine if you have RoHS compliant product please contact customer service.
  • SAE: B-342 PermaSleeve Markers meet the material and physical property requirements of SAE AMS-DTL-23053/5C (Class 1) for Insulation Sleeving and SAE AS-81531 for Marking of Electrical Insulating Materials when printed with R6600, R4300, R4502S, R6700 Series thermal transfer ribbons and R5000 Series dot matrix.

About Brady

Brady manufactures signs, labels, lockout tagout solutions, safety devices, industrial label printers, software, and spill control used to comply with regulatory standards in electronics, telecommunications, manufacturing, electrical, construction, education, and medical industries. The company, founded in 1914, is headquartered in Milwaukee, WI. Visit the Brady Label Finder Store to find labels for your printer.

Sizing Chart

Sleeve Size Range of Diameter (in) Range of Diameter (mm) Approximate Gauge
3/32" (0.094)
0.023 - 0.080
0.58 - 2.03
28 to 20
1/8" (0.125)
0.046 - 0.110
1.17 - 2.79
22 to 16
3/16" (0.188)
0.062 - 0.150
1.57 - 3.81
20 to 10
1/4" (0.250)
0.094 - 0.215
2.39 - 5.46
16 to 8
3/8" (0.375)
0.125 - 0.320
3.18 - 8.13
12 to 4
1/2" (0.500)
0.187 - 0.450
4.75 - 11.43
8 to 1
3/4" (0.750)
0.250 - 0.700
6.35 - 17.78
6 to 4/0
1" (1.000)
0.375 - 0.950
9.53 - 24.13
2 to 0.950
1 1/2" (1.500)
0.500 - 1.450
12.7 - 36.83
NA


  • Industrial Grade – Extreme temperature resistance, UV resistant, Chemical resistant, Fuel and Oil resistant, Self-extinguishing
  • Superior Aesthetics – Crisp, clear identification resistant to abrasions and fading
  • Certifications – UL Recognized to UL 224, RoHS Compliant to 2011/65/EU (Pass 2015/863), SAE AS23053/5 (Class 1), SAE AS-81531, MIL-STD-202
  • 3:1 heat shrinking sleeve designed for 22 - 16 gauge (diameter 0.046 - 0.11 inches, 1.2 - 2.8 mm)
  • For material specific performance and properties, please refer to the Technical Data Sheet (TDS)
  • Industrial Grade – Extreme temperature resistance, UV resistant, Chemical resistant, Fuel and Oil resistant, Self-extinguishing
  • Superior Aesthetics – Crisp, clear identification resistant to abrasions and fading
  • Certifications – UL Recognized to UL 224, RoHS Compliant to 2011/65/EU (Pass 2015/863), SAE AS23053/5 (Class 1), SAE AS-81531, MIL-STD-202
  • 3:1 heat shrinking sleeve designed for 22 - 16 gauge (diameter 0.046 - 0.11 inches, 1.2 - 2.8 mm)
  • For material specific performance and properties, please refer to the Technical Data Sheet (TDS)

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