THERMOMARK INK RIBBON | 25-WMSU

THERMOMARK INK RIBBON | 25-WMSU

THERMOMARK INK RIBBON | 25-WMSU

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ThermoMark Ink Ribbon | 25-WMSU – Technical Datasheet


???? Product Identification




  • Manufacturer: Brady Corporation




  • Model: 25-WMSU (ThermoMark series)




  • Type: Wax-based thermal transfer ribbon




  • Compatibility: Designed for Brady ThermoMark™ printers (e.g., BMP21, BMP21-PLUS, BMP71)







???? Key Specifications








































Attribute Specification
Ribbon Type Wax (standard durability)
Width 25 mm (1 inch)
Length 100 meters (328 feet)
Core Size 12.7 mm (0.5 inch)
Material PET film with wax ink coating
Print Darkness Optimized for medium-dark prints
Shelf Life 2 years (unopened, stored at 15–25°C)





????️ Compatible Printers


✔ Brady BMP21 / BMP21-PLUS (ferrule & wire marking)
✔ Brady BMP71 (industrial label printer)
✔ Other Brady ThermoMark™ systems (verify model-specific compatibility)


Note: Not recommended for resin-required applications (e.g., extreme chemical/UV exposure).






????️ Recommended Label Materials




  • Self-laminating vinyl labels




  • Heat-shrink tubing markers (with Brady-compatible sleeves)




  • Polyester asset tags (for indoor use)







⚙️ Performance Characteristics


✔ Smudge-resistant – Suitable for wire/cable marking
✔ Fast-drying – Minimal smear risk during handling
✔ Good adhesion – Works well with Brady’s FleeceFlex® labels






⚠️ Limitations


❌ Not waterproof/oil-proof (upgrade to 25-RSU resin ribbon for harsh environments)
❌ Not for extreme temperatures (max 60°C/140°F continuous exposure)






???? Where to Buy




  • Brady Direct (global.bradyid.com)




  • Industrial Suppliers: RS Components, Grainger, MSC Direct




  • Amazon (sold as OEM & third-party listings)




Price Range: 25–25–40 per roll (varies by supplier/quantity)






???? Troubleshooting Tips




  • Faded Prints? → Increase printhead temperature slightly.




  • Ribbon Jams? → Ensure correct loading (ink side down on labels).




  • Wrinkling? → Check ribbon tension and alignment.







???? Alternative Ribbons
























Need: Upgrade To:
Outdoor durability 25-RSU (Resin)
Chemical resistance 25-WRSU (Wax-Resin)
Higher print speed 25-WMHU (High-Speed Wax)





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