Brady B33-43-777 Non-Reflow and Reflow Gloss Polyimide Labels
Formulated from Brady B-777 Polyimide with permanent acrylic adhesive. Engineered for 1.25" W × 0.25" H industrial labeling applications.
Engineered Technical Features
- This material does not require reflow or preheating to ensure printing readability, making it ideal for boards that go through multiple harsh-condition washes
- Use in combination with B30-R6300 ribbon to meet MIL-STD-202G, Method 215K Resistance to Solvents test requirements
- For material specific performance and properties, please refer to the Technical Data Sheet (TDS)
- 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 B33-43-777.
Full Technical & Material Specifications (ASTM / UL Testing)
| Material Formulation: | Brady B-777 (B-777 Industrial Material) | Continuous Temp Range: | -40°F to 250°F (-40°C to 121°C) |
| Substrate Polymer Chemistry: | Polyimide | 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 Adhesive: Permanent Acrylic APPLICATIONS Printed circuit board and electronic component pre-process labeling. RECOMMENDED RIBBONS Brady Series R6300 Brady Series R4900A (available in APAC region only) REGULATORY/AGENCY APPROVALS UL: B-777 i s a UL Recognized Component to UL969 Labeling and Marking Standard when printed with Brady Series R6300 ribbon. See |
Related Sibling SKUs & Alternate Formats
Engineering & Specifier FAQs for B33-43-777
Can I print Brady B33-43-777 on a standard portable printer?
B33-43-777 is a bulk roll engineered for benchtop printers (such as the i3300, i5100, i7100, and PR Plus series) with 3-inch core diameter holders.
Is Brady B33-43-777 recognized under UL 969 for electrical panel rating plates?
Yes, B33-43-777 is manufactured from Brady B-777, 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 B33-43-777?
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.