2:1 Heat Shrink Tubing Set – Multi-Color Wire & Cable Sleeves

Protect & Organize Your Wiring with Professional-Grade Heat Shrink Tubing

Keep your electrical connections safe, tidy, and long-lasting with this comprehensive 2:1 Heat Shrink Tubing Set. Made from high-quality crosslinked polyethylene (PE), these tubes shrink to exactly half their original diameter when heated, creating a snug, insulating sleeve around wires, cables, and connectors. Whether you're a hobbyist, electrician, or DIY enthusiast, this multi-color set gives you everything you need for neat, color-coded cable management.

Key Features

• 2:1 Shrink Ratio — Shrinks to 50% of its original diameter for a tight, secure fit
• Wide Temperature Range — Operates reliably from -55°C to +125°C
• Flame Retardant — Built-in flame resistance for added safety
• High Dielectric Strength — 15 KV rating ensures excellent electrical insulation
• Strong & Durable — Tensile strength of 10.4 MPa for lasting protection
• Multi-Color Options — Easily color-code circuits, wires, and connections
• Easy to Cut — Use scissors or a sharp knife to cut any length you need
• Bulk Quantity Sets — Available in bags (164/328 pcs in color; 127 pcs black) or boxes (560/800 pcs in color; 650 pcs black)

Technical Specifications

Common Uses

• Insulating and protecting exposed wire joints and solder connections
• Bundling and organizing cable harnesses in automotive or home wiring
• Color-coding circuit wiring for easy identification
• Protecting terminals, connectors, and PCB leads
• Repair of frayed or damaged cable jackets
• Strain relief on cables and cords

Made in Mainland China.

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For more information on electrical safety standards and wire insulation best practices, visit the U.S. Consumer Product Safety Commission (CPSC) and OSHA Electrical Safety Guidelines.

Frequently Asked Questions

Q: What does 2:1 shrink ratio mean for heat shrink tubing?

A: A 2:1 shrink ratio means the tubing will shrink to half (50%) of its original supplied diameter when heat is applied. For example, a 10mm tube will shrink down to approximately 5mm, creating a tight, secure sleeve around the wire or connector.

Q: What temperature do I need to shrink this tubing?

A: The tubing begins to shrink at temperatures of ≥84°C and reaches full shrinkage at ≥120°C. A standard heat gun is the easiest tool to use, though a lighter or hair dryer can work for smaller pieces. Avoid direct open flame on delicate wiring.

Q: Is this heat shrink tubing safe for automotive and outdoor use?

A: Yes. This tubing is flame retardant and rated for an operating temperature range of -55°C to +125°C, making it suitable for automotive wiring, outdoor installations, and demanding environments. The 15 KV dielectric strength also ensures reliable electrical insulation.

Q: How many pieces are included in each set?

A: Quantity depends on the option selected. Multi-color bags contain 164 or 328 pieces; multi-color boxes contain 560 or 800 pieces. Black bags contain 127 pieces, and black boxes contain 650 pieces — giving you plenty of tubing for large projects or ongoing repairs.