BKL Electronic 074426 Heat Shrink Tubing 3:1 Black 6mm/2mm 100m Roll

Electrical connections and cable bundles need protection from moisture, abrasion, and short circuits. This black heat shrink tubing from BKL Electronic provides a reliable insulating seal for wires and connectors, with a 3:1 shrink ratio that conforms tightly to irregular shapes.

Who is it for

Electricians, automotive technicians, and electronics hobbyists who need durable insulation for cable splices, terminations, and strain relief. The 100-metre roll suits workshops and production environments where continuous tubing is used frequently.

Main features

• 3:1 shrink ratio: recovers from 6 mm to 2 mm internal diameter for a snug fit over connectors and uneven surfaces.
• Polyolefin material offers good chemical resistance and operates from -55°C to +125°C.
• Black colour blends with standard cable jackets and provides a professional finish.
• Supplied on a 100 m roll for convenient dispensing and storage.

Specifications

• Initial internal diameter: 6 mm
• Recovered internal diameter: 2 mm
• Shrink ratio: 3:1
• Length: 100 m
• Material: Polyolefin
• Operating temperature range: -55°C to +125°C
• Minimum shrink temperature: 70°C
• Full recovery temperature: 110°C
• Dielectric strength: >20 kV/mm
• Flammability rating: UL224 VW-1
• Recovered wall thickness: 0.5 mm
• Longitudinal shrinkage: max. 5%
• UV resistance: good
• Chemical resistance: good against common fluids and solvents
• Standards compliance: RoHS compliant

Tips

Use a heat gun set to 110°C or higher for full recovery. Allow the tubing to cool completely before moving the cable to ensure a permanent seal.