3M TE100034830 Heat Shrink Tubing 12.7mm Black 1.22m 2:1

For reliable electrical insulation and strain relief in tight spaces, this 3M heat shrink tubing delivers a secure, professional finish. The thin-walled polyolefin sleeve shrinks at a 2:1 ratio, conforming tightly around wires, connectors, and splices. With a supplied diameter of 12.7 mm and a recovered diameter of 6.4 mm, it accommodates a range of cable sizes. The black colour blends discreetly into most installations, while the 1.22 m length provides ample material for multiple projects.

Highlights

• 2:1 shrink ratio for snug, uniform coverage
• Thin-walled polyolefin remains flexible after shrinking
• Operating range from -55°C to +135°C
• UL VW-1 self-extinguishing flammability rating
• RoHS compliant and approved by UL and CSA

In daily use

Cut the tubing to the required length, slide it over the connection, and apply heat above 120°C. The sleeve shrinks radially, creating a durable, insulating barrier that resists abrasion, chemicals, and moisture. It is ideal for wire bundling, cable repair, and protecting terminations in automotive, marine, and industrial environments.

Full specifications

• Product type: Heat shrink tubing
• Material: Polyolefin
• Shrink ratio: 2:1
• Supplied inner diameter: 12.7 mm (0.5 inch)
• Recovered inner diameter: 6.4 mm (0.25 inch)
• Length: 1.22 m (4 ft)
• Colour: Black
• Operating temperature range: -55°C to +135°C
• Minimum shrink temperature: 120°C
• Dielectric strength: 19.7 kV/mm
• Flammability rating: UL VW-1 (self-extinguishing)
• Wall type: Thin-walled
• Flexibility: Flexible
• RoHS compliant: Yes
• Agency approvals: UL, CSA
• Longitudinal shrinkage: Max. 5%
• Chemical resistance: Good

Final note

Choose 3M TE100034830 for dependable insulation that meets strict safety standards and performs consistently across a wide temperature range.