The Brady Black on White Polyester Label Printer Cartridge uses self-laminating labels that are resistant to water, oil and abrasion and are also self-extinguishing for safety. Brady's self-laminating vinyl material is excellent for wire and cable identification. Designed with a clear protective layer to cover the printed text, B-427 material provides superb protection from abrasion, dirt, oils, solvents, water and excess handling. Excellent Adhesion - adheres well to surfaces that are smooth, rough or powder coated, and to irregular surfaces or surfaces with low surface energy. Superior Protection - Abrasion resistant, Outdoor durable, Alcohol resistant, Fuel and Oil resistant, Self-extinguishing.