Brady M21-500-423 Harsh Environment Multi-Purpose Polyester Labels
Formulated from Brady B-423 White polyester with a glossy white finish and a permanent acrylic adhesive, printed by thermal transfer with permanent acrylic adhesive. Engineered for 0.5" W × 21 ft Roll industrial labeling applications.
Engineered Technical Features
- Harsh Environment – High-tack permanent adhesive for a variety of surface types in all-weather applications
- Engineered Performance – Resists exposure to UV light, extreme temperatures, abrasions, fuel and oil, degreasers, cleaners, and detergents
- Certifications – UL Recognized to UL969, CSA to C22.2 No. 0.15-95, RoHS compliant to 2011/65/EU (Pass 2015/863), DIN VDE 0472 Part 815
- 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 M21-500-423.
Full Technical & Material Specifications (ASTM / UL Testing)
| Material Formulation: | Brady B-423 (B-423 Industrial Material) | Continuous Temp Range: | -40°F to 250°F (-40°C to 121°C) |
| Substrate Polymer Chemistry: | White polyester with a glossy white finish and a permanent acrylic adhesive, printed by thermal transfer | 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: | Glossy white |
Related Sibling SKUs & Alternate Formats
Engineering & Specifier FAQs for M21-500-423
Can I print Brady M21-500-423 on a standard portable printer?
Yes, M21-500-423 is fully compatible with portable field printers including M210, M210-LAB, M211 using drop-in all-in-one cartridges.
Is Brady M21-500-423 recognized under UL 969 for electrical panel rating plates?
Yes, M21-500-423 is manufactured from Brady B-423, 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 M21-500-423?
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.