1.5mm Heat Shrink Tube – 2:1 & 3:1 Ratio Wire Sleeve, 13 Colors - HomeDIYer

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1.5mm Heat Shrink Tube – 2:1 & 3:1 Ratio Wire Sleeve, 13 Colors

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Size: 2∶1

Color: Black

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1.5mm Heat Shrink Tubing — Reliable Wire Insulation for Tight Spaces

Anyone who has wrestled with frayed wire ends, exposed solder joints, or tangled harnesses knows how quickly a small wiring job can become a frustrating mess. Whether you're a hobbyist repairing electronics, an auto enthusiast tidying up a custom harness, or a professional electrician finishing a clean install, having the right 1.5mm heat shrink tubing on hand makes the difference between a job that looks done and one that looks done right.

Each pack contains either 5 or 10 pieces of heat shrink tubing with a 1.5mm inner diameter (before shrinking). Available in two shrink ratios — 2:1 and 3:1 — and in 13 colors including Black, White, Red, Green, Yellow, Blue, Transparent, Brown, Orange, Purple, Gray, Bright Black, and Transparent-PTFE. Most variants are made from flexible polyolefin; the Transparent-PTFE option uses PTFE material for higher temperature and chemical resistance. Tubing length per piece may vary by color/variant — see variant options for specifics.

Typical use cases include insulating wire splices and solder joints in DIY electronics projects, color-coding automotive wiring harnesses for easy identification, protecting small connectors and terminals in RC models or drones, and bundling fine gauge wires in home appliance repairs where a neat, professional finish matters.

🔌 Compatibility: Fits wires with an outer diameter under 1.5mm (typically AWG 26–22). Verify your wire OD before ordering. The 2:1 ratio recovers to approximately 0.75mm; the 3:1 ratio recovers to approximately 0.5mm.

✅ Key Features of These 1.5mm Heat Shrink Tubes

🎨13 Color Options — From standard Black and White to Transparent-PTFE, color-code your wiring harness or match any project aesthetic without ordering from multiple suppliers.
🔥Dual Shrink Ratio — Choose 2:1 for standard wire insulation or 3:1 for a tighter, more conforming fit over connectors and irregular shapes — both available in the same product listing.
⚡Electrical Insulation — Polyolefin construction provides solid dielectric protection for low-voltage wire splices, solder joints, and terminal connections in electronics and automotive applications.
🌡️PTFE Variant for Harsh Environments — The Transparent-PTFE option handles higher operating temperatures and chemical exposure, making it suitable for engine-bay wiring, lab equipment, and industrial use.
✂️Easy to Cut and Apply — Flexible tubing slides onto wire ends smoothly before shrinking; a standard heat gun or even a lighter activates the shrink quickly and evenly for a snug, clean finish.
📦Flexible Pack Sizes — Order 5-piece packs to sample colors or test fit, or choose 10-piece packs for ongoing projects — ideal for keeping a tidy wire management kit stocked without over-buying.

📐 Technical Specifications — 1.5mm Heat Shrink Tubing

Inner Diameter (before shrink)	1.5mm (≈1/16")
Shrink Ratio	2:1 or 3:1 (see variant options)
Recovered Inner Diameter	~0.75mm (2:1) / ~0.5mm (3:1)
Material	Polyolefin (most colors); PTFE (Transparent-PTFE variant)
Activation Temperature	Typically 90°C–120°C (194°F–248°F) for polyolefin
Available Colors	Black, White, Red, Green, Yellow, Blue, Transparent, Brown, Orange, Purple, Gray, Bright Black, Transparent-PTFE
Pack Quantity	5 pcs or 10 pcs (see variant options)
Piece Length	See variant options
Suitable Wire Gauge	Typically AWG 26–22 (outer diameter under 1.5mm)
Application	Wire insulation, splice protection, terminal covering, wire bundling
Flexibility	Flexible after shrinking (polyolefin); semi-rigid (PTFE)
Country of Origin	Contact us to confirm

⚠️ Sizing note: Always measure your wire's outer diameter (including insulation) before ordering. The 1.5mm inner diameter must be larger than your wire OD for the tube to slide on before shrinking.

❓ Frequently Asked Questions

How do I choose the right length of heat shrink tubing for my project?

Measure the section of wire or connector you need to cover, then add at least 5–10mm (about 1/4"–3/8") on each end for overlap. For a 1.5mm tube, this typically means cutting pieces in the range of 20–50mm (≈3/4"–2") for most wire-splice applications. Always cut slightly longer than needed — you can trim excess after shrinking.

What is the difference between 2:1 and 3:1 shrink ratio?

A 2:1 ratio means the tubing shrinks to half its original diameter when heated. A 3:1 ratio shrinks to one-third, making it better suited for irregular shapes, connectors, or situations where you need a tighter, more conforming fit. For a 1.5mm tube at 2:1, the recovered diameter is typically around 0.75mm; at 3:1, it recovers to approximately 0.5mm.

How much heat does this tubing require to shrink?

Standard polyolefin heat shrink tubing generally activates at temperatures around 90°C (194°F) and fully recovers by 120°C (248°F). A heat gun set to low or medium is the most reliable tool. You can also use a lighter carefully, but a heat gun gives more even results and reduces the risk of scorching.

Is this heat shrink tubing suitable for outdoor or wet environments?

Standard polyolefin tubing (Black, White, Red, and most colors) provides good moisture resistance for general indoor and light outdoor use. The Transparent-PTFE variant offers significantly higher chemical and temperature resistance, making it a better choice for harsh outdoor, automotive, or industrial environments. For fully waterproof sealing, consider adhesive-lined heat shrink tubing instead.

What wire gauge does 1.5mm heat shrink tubing fit?

A 1.5mm inner diameter tube generally fits wires in the range of AWG 26–22 (approximately 0.4mm–0.6mm conductor diameter) before shrinking. Always verify your wire's outer diameter — including insulation — is smaller than 1.5mm to ensure the tube slides on easily before heat is applied.

Can I use this tubing for automotive wiring repairs?

Yes, polyolefin heat shrink tubing is commonly used in automotive wiring for splices, terminal insulation, and wire bundling. For engine-bay applications where temperatures and chemical exposure are higher, the Transparent-PTFE variant is generally the better choice due to its wider operating temperature range and chemical resistance.

How do I choose the right color for my application?

Color-coding is a practical way to identify wire functions at a glance. Common conventions include red for positive/power, black for ground/negative, blue for signal, yellow for caution circuits, and green for earth/ground. Transparent tubing lets you see the wire or label underneath, while Bright Black and Gray are popular for a clean, professional finish in electronics builds.

🛒 Select your size, color, and pack quantity above, then add to cart — ships from our US warehouse.

1.5mm Heat Shrink Tube – 2:1 & 3:1 Ratio Wire Sleeve, 13 Colors

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Beschreibung

1.5mm Heat Shrink Tubing — Reliable Wire Insulation for Tight Spaces

✅ Key Features of These 1.5mm Heat Shrink Tubes

📐 Technical Specifications — 1.5mm Heat Shrink Tubing

❓ Frequently Asked Questions

1.5mm Heat Shrink Tube – 2:1 & 3:1 Ratio Wire Sleeve, 13 Colors

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