1mm / 2.5mm / 4mm / 6mm Heat Shrink Tubing Tube Sleeving Wrap Wire

Specifications

Material

• Polyolefin (commonly used due to its flexibility, durability, and insulation properties)
• Flame retardant (optional)
• RoHS and UL-compliant (varies by manufacturer)

Heat Shrink Ratios

• Standard: 2:1 (shrinks to half its original diameter)
• High ratio: 3:1 or 4:1 (for irregular shapes or larger ranges)

Sizes (Nominal Inner Diameter)

1. Before Shrinkage
   • 1 mm, 2.5 mm, 4 mm, 6 mm (±5% tolerance)
2. After Full Shrinkage
   • 1 mm → 0.5 mm
   • 2.5 mm → 1.25 mm
   • 4 mm → 2 mm
   • 6 mm → 3 mm

Wall Thickness

• Before Shrinkage: 0.18–0.25 mm (varies by size)
• After Shrinkage: 0.5–1 mm (varies by size)

Shrink Temperature

• Minimum shrink temperature: 70°C to 90°C
• Full recovery temperature: 110°C to 120°C

Operating Temperature

• Range: -55°C to +125°C
• Flame-resistant versions can withstand higher temperatures temporarily.

Electrical Properties

• Dielectric Strength: 15–25 kV/mm
• Volume Resistivity: ≥ 10^14 Ω·cm

Mechanical Properties

• Tensile Strength: ≥10 MPa
• Elongation at Break: ≥200%
• Longitudinal Shrinkage: ≤±5%

Colors Available

• Black, transparent, red, blue, yellow, green, and multi-color sets (specific applications may require color coding).

Packaging

• Sold in rolls, pre-cut lengths, or kits
• Common lengths: 1 meter, 2 meters, or spools up to 100 meters.

Applications

• Electrical Insulation: Insulating exposed wires and soldered joints.
• Environmental Protection: Protection against moisture, chemicals, and abrasion.
• Mechanical Strain Relief: Reinforcing cable ends and connectors.
• Bundling: Organizing and bundling multiple cables or wires.
• Identification: Color-coded sleeving for easy identification of wires.