Yato YT-81441 heat-shrink tubing

Yato YT-81441 heat-shrink tubing is a pack of 30 transparent polyethylene (PE) insulated solder-seal sleeves designed to create reliable, water-resistant connections for electrical wires. Each sleeve contains a central ring of solder and two rings of hot-melt adhesive that flow and seal when heated, forming a mechanically strong and moisture-resistant joint. The sleeves suit conductors with cross-sections from 0.5 to 1.5 mm² (18–16 AWG) and offer a practical length and diameter for general wiring repairs and installations.

Advantages

YATO heat-shrink tin sleeves combine a higher shrink ratio, flexible polyethylene construction and a precisely dosed solder ring to produce consistent solder joints and durable insulation. Compared with PVC alternatives, PE sleeves provide greater shrinkage (3:1), remain flexible at sub-zero temperatures, and offer improved resistance to abrasion, punctures and chemicals. The hot-melt adhesive rings maintain elasticity after curing and ensure a long-lasting waterproof seal.

Suitable for

• Electrical wire repairs and splices for 0.5–1.5 mm² (18–16 AWG) conductors
• Automotive wiring where heat and vibration resistance are required
• Marine and outdoor electrical connections exposed to moisture and atmospheric conditions
• Household appliance wiring and DIY electrical work
• Situations demanding a compact, insulated, and sealed soldered joint

Key specifications

• Material: polyethylene (PE) tubing with solder ring and hot-melt adhesive rings
• Suitable conductor cross-section: 0.5–1.5 mm² (18–16 AWG)
• Tube length: 40 mm
• Internal diameter (before shrinking): 2.7 mm
• Solder binder melt temperature: 105 °C
• Shrink activation temperature: 80 °C
• Pack quantity: 30 pieces
• Shrink ratio: approximately 3:1 (typical for PE heat-shrink sleeves)

How to use

Strip the wire insulation to the required length, insert the conductors into the sleeve so that the solder ring is centered over the joint, and align the adhesive rings over the exposed insulation. Apply heat evenly using a heat gun, hot air tool or controlled flame while rotating the joint to ensure uniform shrinkage. Heat until the solder melts (around 105 °C) and the adhesive flows to form a continuous seal; continue heating briefly until the tubing conforms tightly around the conductors and the adhesive has fully flowed. Allow the joint to cool undisturbed so the solder solidifies and the adhesive sets.

Usage recommendations

For consistent results, use a regulated hot air gun at an appropriate distance and temperature to avoid overheating surrounding components. Ensure wires are clean and free of corrosion before soldering. Choose appropriate sleeve size for conductor bundle thickness; the PE material’s 3:1 shrink ratio allows some oversizing, but excessive fill can prevent complete sealing. After cooling, inspect the joint visually for continuous solder flow and adhesive coverage to confirm a reliable, waterproof connection.