The Brady R4900 Series ribbon is based on a resin formulation which offers the end user a high performance image when used with Brady label materials. Advantages of the R4900 Series ribbon, when printed on the appropriate Brady label, include excellent solvent resistance, high heat resistance and excellent smear resistance.
Brady R4900 Resin Ribbon Data Sheet.pdf
https://www.midwestbarcodingsolutions.com/content/product_downloads/brady/Brady R4900 Resin Ribbon Data Sheet.pdf
MFG Part Number
Coated Side Out (CSO)
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