Brady M21-125-C-342 PermaSleeve® Heat-Shrink Wire and Cable Labels
Formulated from Brady B-342 Irradiated polyolefin heat shrink tubing (3:1 shrink ratio) with permanent acrylic adhesive. Engineered for 1" W × 7 ft Roll industrial labeling applications.
Engineered Technical Features
- 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)
Compatible Brady Printers & Thermal Transfer Ribbon Pairing
Verified hardware compatibility and recommended ribbon formulations for M21-125-C-342.
Full Technical & Material Specifications (ASTM / UL Testing)
| Material Formulation: | Brady B-342 (B-342 Industrial Material) | Continuous Temp Range: | -40°F to 250°F (-40°C to 121°C) |
| Substrate Polymer Chemistry: | Irradiated polyolefin heat shrink tubing (3:1 shrink ratio) | Total Material Thickness: | 0.004 in (0.102 mm) |
| Adhesive Formulation: | Permanent Acrylic | ASTM D1000 Stainless Steel Peel: | 50+ oz/in |
| ASTM D1000 Polypropylene Peel: | 35+ oz/in | ASTM D1000 Powder Coat Peel: | 40+ oz/in |
| UL 969 Recognition: | UL 969 (File MH17154 / MH10939) | CSA C22.2 Acceptance: | CSA C22.2 No. 0.15 |
| RoHS / Halogen Compliance: | RoHS Compliant • Standard Formulation | Surface Finish: | Gloss / Matte |
Related Sibling SKUs & Alternate Formats
Engineering & Specifier FAQs for M21-125-C-342
Can I print Brady M21-125-C-342 on a standard portable printer?
Yes, M21-125-C-342 is fully compatible with portable field printers including M210, M210-LAB, M211 using drop-in all-in-one cartridges.
Is Brady M21-125-C-342 recognized under UL 969 for electrical panel rating plates?
Yes, M21-125-C-342 is manufactured from Brady B-342, which holds UL 969 component recognition under File MH17154 / MH10939 (PGJI2) when printed with approved thermal transfer ribbons (such as Series R6000HF).
How do I generate an official engineering submittal package for M21-125-C-342?
Click the "1-Click Engineering Submittal PDF Package" button above to instantly generate a contractor-stamped specification packet with ASTM D1000 adhesion test data, continuous operating temperatures, and UL compliance certificates ready for architectural submittals.