YoiYee 164-Piece Heat Shrink Tubing Kit, 8 Sizes Electrical Wire Sleeves

Key features

• 2:1 Shrink Ratio: Sleeves shrink to half their original diameter when heated, creating a tight, protective seal over wire splices and terminals.
• 8 Diameters in 40mm and 80mm Lengths: Includes 1.0mm, 2.0mm, 3.0mm, 4.0mm, and 6.0mm (40mm long), plus 8.0mm, 10.0mm, and 14.0mm (80mm long).
• 5 Colours for Circuit Coding: Yellow, black, red, green, and blue sleeves allow immediate identification of live, neutral, ground, and signal lines.
• Durable Electrical Insulation: Rated for -55°C to +125°C operation with 15 kV/mm dielectric strength and flame-retardant polyolefin construction.
• 164-Piece Assortment: Packaged with 60x 1.0mm, 30x 2.0mm, 20x 3.0mm, 16x 4.0mm, 12x 6.0mm, 10x 8.0mm, 8x 10.0mm, and 8x 14.0mm tubes.

Description

This 164-piece heat shrink tubing kit protects exposed wiring, insulates soldered joints, and provides mechanical strain relief. With a 2:1 shrinkage ratio, each polyolefin sleeve contracts to half its diameter when heat is applied from a heat gun or lighter. The five colour options simplify circuit identification across automotive, home electrical, and hobby wiring projects. Specifications Material: Flame-retardant polyolefin Shrink Ratio: 2:1 Supplied Diameters: 1.0mm, 2.0mm, 3.0mm, 4.0mm, 6.0mm, 8.0mm, 10.0mm, 14.0mm Supplied Lengths: 40mm (1.0mm to 6.0mm sizes) and 80mm (8.0mm to 14.0mm sizes) Colours: Black, Red, Yellow, Blue, Green Operating Temperature: -55°C to +125°C Minimum Shrink Temperature: +70°C Full Shrinkage Temperature: +110°C Dielectric Strength: 15 kV/mm Tensile Strength: 10.4 MPa Common Questions Q: What heat source should be used to shrink the tubing? A: A standard heat gun, hot air blower, or lighter held at a steady distance will initiate shrinkage at +70°C and fully shrink the sleeve at +110°C. Q: How much does each tube reduce in diameter? A: The tubing features a 2:1 shrinkage ratio, reducing to exactly 50% of its supplied internal diameter when heated. Q: What are the lengths of the different tube sizes? A: Diameters 1.0mm through 6.0mm are 40mm long; larger diameters 8.0mm, 10.0mm, and 14.0mm are 80mm long. Works Great For Automotive wire splicing, repairing frayed USB and headphone cables, RC model wiring, marine electrical connections, and phase-marking terminal lugs. Pro Tip Move the heat source back and forth along the sleeve starting from the centre outwards to prevent trapped air pockets and ensure an even, watertight seal. Package 164 heat shrink tubes: 60x 1mm, 30x 2mm, 20x 3mm, 16x 4mm, 12x 6mm (40mm length); 10x 8mm, 8x 10mm, 8x 14mm (80mm length)

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