3:1 Black Adhesive-Lined Waterproof Heat Shrink Tubing

Our 3:1 Black Adhesive-Lined Waterproof Heat Shrink Tubing provides a highly durable and watertight solution for insulating and bundling wires and cables. Designed with a dual-wall polyolefin construction and internal adhesive lining, this tubing forms a strong environmental seal that protects against water, dust and abrasion. With excellent electrical and physical performance, it is ideal for wire harnesses, machinery, automotive, marine and general manufacturing environments. Available in a wide range of diameters and reel lengths to suit any application, with datasheets available upon request. Please note: 9.5mm diameter and smaller heat shrink tubing is supplied round, and 12.7mm diameter and above is supplied flat.

Technical Specification

• Material: Polyolefin
• Shrink Ratio: 3:1
• Lining: Adhesive Lining
• Working Temperature: -55°C to +125°C
• Shrink Temperature: 90°C
• Pre-Shrink Diameter Range: 3.2mm – 38.1mm
• Post-Shrink Diameter Range: 1mm – 12.7mm
• Pre-Shrink Lay-Flat Width: 5mm – 60mm
• Colour: Black
• Reel Length Options: 200m – 20m
• Dielectric Voltage Withstand: 2500V for 60 seconds, no breakdown
• Flammability Rating: VW-1
• Compliance: UL Approved, RoHS Compliant, Zero Halogen
• Size Reference Table:
3.2mm → 1mm → 5mm
4.8mm → 1.6mm → 7.5mm
6.4mm → 2mm → 10mm
9.5mm → 3mm → 14.9mm
12.7mm → 4mm → 19.9mm
19.1mm → 6mm → 30mm
25.4mm → 8.5mm → 40mm
38.1mm → 12.7mm → 60mm