3M HSR Heat Shrink Tubing, 9.5/4.8 mm, Black, Thin-Wall, 2:1, Roll 7100235045

Electrical insulation and cable bundling often fail when exposed to moisture, abrasion, or temperature extremes. The 3M HSR heat shrink tubing solves this by providing a durable, flame-retardant polyolefin sleeve that shrinks tightly around wires and connectors when heated, creating a protective seal.

Who is it for

This tubing is ideal for electricians, automotive technicians, and electronics hobbyists who need reliable insulation and strain relief for splices, terminations, and cable harnesses. It suits both professional workshops and DIY projects where long-term performance matters.

Main features

• 2:1 shrink ratio for a snug fit over irregular shapes
• Thin-wall design adds minimal bulk while providing effective insulation
• Flame-retardant and self-extinguishing for enhanced safety
• Wide operating temperature range from -55°C to 135°C
• Supplied on a roll for convenient dispensing and storage

Specifications

• Expanded diameter: 9.5 mm
• Recovered diameter: 4.8 mm
• Material: Cross-linked polyolefin
• Colour: Black
• Shrink ratio: 2:1
• Minimum shrink temperature: 100°C
• Dielectric strength: 20 kV/mm
• Voltage rating: 600 V
• Approvals: UL 224, CSA, RoHS compliant

Tips

Use a heat gun set to at least 100°C and apply heat evenly along the tubing length for uniform shrinkage. Avoid overheating to prevent damage to the tubing or underlying components.