PVC Number Tube / Wire Marker Tube for Cable Identification, Printable, Flame Retardant

    PVC number tubes (also called wire marker tubes or cable marker sleeves) are soft PVC sleeves specially designed for identifying wires and cables in electrical panels, control cabinets, switchgear, and wiring harnesses. Printed with numbers, letters, or symbols, they help technicians install, maintain, and troubleshoot electrical systems quickly and accurately.

Key Features

• High-contrast printing surface — surface optimized for thermal transfer and inkjet printing, producing clear, legible marks that resist abrasion
• Flame retardant & oil resistant — soft PVC formulation with self-extinguishing performance for safer electrical applications
• Wide operating temperature — maintains flexibility across a broad temperature range (typical -30 °C to +105 °C, confirm per batch)
• Flexible yet tough — easy to slide over wires and stays in place without cracking, ideal for repeated handling
• Uniform wall thickness — consistent dimensions for reliable printing, cutting, and crimping
• Multiple sizes & colors — available from 0.5 mm² to 10 mm² (or Φ2 mm – Φ10 mm) in white, yellow, red, blue, green, black, and more
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• Wire & cable numbering in control cabinets and switchgear
• Electrical panel wiring identification
• Terminal block and connector marking
• Automotive and industrial wiring harnesses
• Maintenance and repair: fast identification of replacement wires

Customization

• Custom printed numbers, letters, symbols, and logos
• Custom colors, sizes, and lengths
• OEM / ODM packaging with your brand

• Packaging: rolls or cut tubes in PE bags, cartons; customized packaging available
• Shipping: samples by express, bulk orders by sea or air

• Q: Can the printing withstand long-term use? A: Marks are produced with industrial-grade inks that resist abrasion, oil, and common cleaning agents; we recommend confirming the exact ink compatibility with your printer model.
• Q: What sizes are available? A: We supply 0.5 mm² – 10 mm² (or Φ2 – Φ10 mm); special sizes can be produced on request.
• Q: Do you support custom printing? A: Yes, we offer custom numbers, letters, symbols, and logos with OEM/ODM services.Contact us for samples, technical datasheets, and volume pricing.