What temperature is needed to shrink this tubing?

Polyolefin heat shrink tubing typically activates at around 90°C (194°F) and fully shrinks at approximately 120°C (248°F). A heat gun is the recommended tool; avoid open flames as they can scorch or unevenly shrink the material.

15mm Heat Shrink Tubing 2:1 Ratio – Electrical Cable Sleeving & Wire Insulation

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15mm Heat Shrink Tubing 2:1 Ratio – Electrical Cable Sleeving & Wire Insulation

HomeDIYer

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By HomeDIYer®

Color: Black

Length: 1 Meter

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$6.58 USD

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In stock (500 units), ready to be shipped

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15mm Heat Shrink Tubing That Protects Every Wire, Every Time

Exposed wire splices, fraying insulation, and loose connector joints are the kind of small problems that turn into big failures — whether you're wiring a trailer, repairing an appliance, or building a custom electronics project. DIYers, auto technicians, and electricians all need a reliable way to seal and protect their work without bulky tape or messy liquid insulation.

This 15mm heat shrink tubing features a 2:1 shrink ratio, meaning it shrinks from 15mm down to approximately 7.5mm when heat is applied — creating a tight, uniform sleeve over your cable or connector. Made from polyolefin, each roll is available in seven colors (Black, White, Red, Green, Yellow, Blue, and Transparent) and six lengths from 1 Meter (≈3.3 ft) to 30 Meter (≈98.4 ft), so you can match your color-coding system and buy only what you need.

Typical use cases include automotive wire harness repair, electrical panel cable management, marine and RV wiring protection, and DIY electronics insulation projects. The transparent option is especially useful when you need to inspect the underlying wire or label without removing the sleeve.

🔌 Compatibility: Fits cable bundles and connectors typically ranging from 7mm to 14mm in diameter. Verify your cable OD before ordering. Suitable for use with standard heat guns; shrink temperature is generally 90–120°C (194–248°F).

✅ Key Features of These 15mm Heat Shrink Tubes

🔥2:1 Shrink Ratio — Shrinks from 15mm down to approximately 7.5mm, delivering a snug, wrinkle-free fit over mid-gauge cable bundles and butt connectors.
🧪Polyolefin Construction — Polyolefin material provides solid electrical insulation and resists oils, solvents, and mild abrasion — a practical choice for automotive and industrial wiring repairs.
🎨7 Color Options — Black, White, Red, Green, Yellow, Blue, and Transparent let you follow standard electrical color-coding conventions or keep wire identification visible through the sleeve.
📏6 Length Options — Choose from 1m (≈3.3 ft) up to 30m (≈98.4 ft) so you can cover a single repair or stock up for an entire wiring project without waste.
✂️Easy to Cut and Position — Slides smoothly over cables before shrinking and cuts cleanly with scissors or a utility knife, making it straightforward to use for heat shrink wire insulation on the bench or in the field.
🚗Versatile Application Range — Suitable for automotive wire harness sleeving, marine wiring, home electrical repairs, and DIY electronics — anywhere a clean, insulated finish is needed.

📐 Technical Specifications — 15mm Heat Shrink Tubing

Product Type	Heat Shrink Tubing / Electrical Sleeving
Inner Diameter (Before Shrink)	15mm (≈19/32")
Inner Diameter (After Shrink)	Approximately 7.5mm (≈5/16") — typically
Shrink Ratio	2:1
Material	Polyolefin
Available Colors	Black, White, Red, Green, Yellow, Blue, Transparent
Available Lengths	1m (≈3.3 ft), 5m (≈16.4 ft), 10m (≈32.8 ft), 15m (≈49.2 ft), 20m (≈65.6 ft), 30m (≈98.4 ft)
Activation Temperature	Typically 90°C (194°F) — see variant options
Full Shrink Temperature	Typically 120°C (248°F) — see variant options
Wall Thickness (After Shrink)	See variant options
Voltage Rating	Contact us to confirm
Operating Temperature Range	Contact us to confirm
Compliance / Standards	Contact us to confirm

❓ Frequently Asked Questions

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

Measure the total cable run you need to cover and add 10–15% for overlap and trimming. For example, a 3-meter wire harness typically needs at least 3.5m of tubing. We offer lengths from 1 Meter (≈3.3 ft) up to 30 Meter (≈98.4 ft) so you can buy exactly what your project requires.

What does the 2:1 shrink ratio mean?

A 2:1 ratio means the tubing shrinks to half its original diameter when heat is applied. This 15mm tubing will generally shrink down to approximately 7.5mm, providing a snug, secure fit over cables and connectors in that size range.

Can this heat shrink tubing be used outdoors or in wet environments?

Standard polyolefin heat shrink tubing is generally suitable for light outdoor use where it is not continuously submerged. For harsh outdoor, marine, or underground environments, we recommend confirming the specific variant's UV and moisture resistance rating with us before installation.

What tool do I need to shrink this tubing?

A heat gun is the recommended tool. Polyolefin heat shrink tubing typically activates at around 90°C (194°F) and fully shrinks at approximately 120°C (248°F). Avoid open flames as they can scorch or unevenly shrink the material. Move the heat gun slowly along the length for an even finish.

Is this tubing compatible with standard wire gauges and connectors?

The 15mm pre-shrink inner diameter is generally compatible with cable bundles, butt connectors, and wire looms in the 7–14mm diameter range. Always measure your cable or connector outer diameter before ordering to ensure a proper fit after shrinking.

How do I cut heat shrink tubing cleanly?

Sharp scissors or a utility knife on a flat surface will give the cleanest cut. Cutting at a slight angle (rather than straight across) can make it easier to slide the tubing over connectors before shrinking. Always cut to length before applying heat.

Can I use this for automotive wiring repairs?

Yes. Heat shrink tubing is widely used in automotive wiring repairs to insulate splices, protect connectors, and bundle wire harnesses. The 15mm size is generally well-suited for mid-gauge automotive cable bundles, relay connectors, and trailer wiring applications.

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

15mm Heat Shrink Tubing 2:1 Ratio – Electrical Cable Sleeving & Wire Insulation

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Description

15mm Heat Shrink Tubing That Protects Every Wire, Every Time

✅ Key Features of These 15mm Heat Shrink Tubes

📐 Technical Specifications — 15mm Heat Shrink Tubing

❓ Frequently Asked Questions

15mm Heat Shrink Tubing 2:1 Ratio – Electrical Cable Sleeving & Wire Insulation

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