Heat Shrink Tubing 2:1 Ratio — 80mm & 90mm Large Diameter Wire Wrap Sleeve

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Heat Shrink Tubing 2:1 Ratio — 80mm & 90mm Large Diameter Wire Wrap Sleeve

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Colour: Black

Inner Diameter(mm): φ80mm

Hose Length (m）: 1 Metre

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$10.19 USD

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Large Diameter Heat Shrink Tubing 2:1 — Reliable Insulation for Big Wire Bundles

When you're routing thick wiring harnesses through an engine bay, bundling cables on a boat, or protecting large-gauge conductors in an industrial panel, standard small-bore heat shrink just doesn't cut it. This large diameter heat shrink tubing is designed for electricians, automotive technicians, marine riggers, and serious DIYers who need a clean, durable sleeve for wire bundles that standard tubing can't cover.

Each piece is a single continuous length of 2:1 ratio polyolefin heat shrink tubing, available in inner diameters of φ80mm (≈3.15") and φ90mm (≈3.54"), with lengths of 1 metre (≈3.3 ft), 2 metres (≈6.6 ft), 5 metres (≈16.4 ft), and 10 metres (≈32.8 ft). The 2:1 shrink ratio means the tubing recovers to approximately half its supplied diameter when heat is applied, creating a snug, uniform fit around your bundle. Seven color options — Black, White, Red, Green, Yellow, Blue, and Transparent — make circuit identification and organization straightforward.

Typical use cases include automotive wiring harness protection, cable management on RVs and trailers, bundling hydraulic hose and cable assemblies in machinery, and organizing large conduit runs in workshops. The transparent variant is especially useful when you need to inspect connections or labels after sleeving — a common need in control panel wiring and custom audio installations.

ℹ️ Compatibility Note: Supplied inner diameter is φ80mm (≈3.15") or φ90mm (≈3.54"). After shrinking at approximately 120°C (248°F), the recovered diameter is typically around 40mm (≈1.57") and 45mm (≈1.77") respectively. Measure your wire bundle before ordering. Select your diameter and length above.

✅ Key Features of These Large Diameter Heat Shrink Tubing Sleeves

🔥2:1 Shrink Ratio — Recovers to approximately half the supplied diameter, delivering a firm, uniform fit around large wire bundles and cable assemblies without gaps or loose ends.
🎨7 Color Options — Black, White, Red, Green, Yellow, Blue, and Transparent allow color-coded circuit identification, making wiring harness organization faster and easier to trace during maintenance.
📏Two Large Bore Sizes — φ80mm (≈3.15") and φ90mm (≈3.54") inner diameters cover thick automotive harnesses, marine cable bundles, and industrial conduit runs that smaller tubing cannot accommodate.
🛡️Polyolefin Construction — Offers resistance to moisture, mild chemicals, and abrasion, making this heat shrink wire wrap sleeve suitable for under-hood automotive use and outdoor electrical installations.
✂️Cut-to-Length Flexibility — Available in 1m, 2m, 5m, and 10m continuous lengths so you can cut exactly what you need for each splice, harness section, or bulk workshop stock.
👁️Transparent Option for Visual Inspection — The clear variant lets you verify connector seating, read wire labels, and inspect terminations after sleeving — a practical choice for control panels and custom electrical builds.

📐 Technical Specifications — Large Diameter Polyolefin Heat Shrink Tubing

Product Type	Polyolefin Heat Shrink Tubing
Shrink Ratio	2:1
Supplied Inner Diameter	φ80mm (≈3.15") / φ90mm (≈3.54") — see variant options
Recovered Inner Diameter (approx.)	~40mm (≈1.57") / ~45mm (≈1.77") — typically half of supplied diameter
Available Lengths	1m (≈3.3 ft) / 2m (≈6.6 ft) / 5m (≈16.4 ft) / 10m (≈32.8 ft)
Colors Available	Black, White, Red, Green, Yellow, Blue, Transparent
Material	Polyolefin
Shrink Temperature (typical)	Begins at ~70–90°C (158–194°F); full recovery at ~120°C (248°F)
Voltage Rating (typical)	Up to 600V — confirm for your specific application
Wall Thickness (pre-shrink)	See variant options / Contact us to confirm
Application Method	Heat gun (recommended); avoid open flame
Typical Use Cases	Automotive wiring harness, marine cable bundling, industrial panel wiring, DIY electrical projects

⚠️ Sizing Tip: Always measure your wire bundle's outer diameter before selecting a size. The supplied (pre-shrink) diameter should be comfortably larger than your bundle for easy insertion. If you're unsure, contact us to confirm the right fit.

❓ Frequently Asked Questions

How do I choose the right diameter for my wire bundle?

Measure the outer diameter of your wire bundle before shrinking. For a 2:1 ratio tube, the recovered (shrunken) inner diameter is typically half the supplied diameter. For the φ80mm tube, the recovered diameter is generally around 40mm (≈1.57"); for the φ90mm tube, approximately 45mm (≈1.77"). Always choose a size where the supplied diameter is at least 20–30% larger than your bundle for easy insertion.

What shrink temperature is required?

Polyolefin heat shrink tubing of this type typically begins shrinking at around 70–90°C (158–194°F) and fully recovers at approximately 120°C (248°F). A heat gun set to medium-high is generally sufficient. Avoid open flames, which can scorch the tubing unevenly.

Can this tubing be used outdoors or in marine environments?

Standard polyolefin heat shrink tubing provides good resistance to moisture, UV exposure, and mild chemicals, making it suitable for most outdoor and automotive applications. For fully submerged or saltwater marine use, an adhesive-lined (dual-wall) variant is generally recommended for a watertight seal.

What is the voltage rating of this heat shrink tubing?

Polyolefin heat shrink tubing in this size range is typically rated for up to 600V. It is suitable for low- and medium-voltage electrical insulation in automotive, industrial, and DIY wiring applications. Confirm your specific voltage requirements before use in high-voltage systems.

Which color should I choose for my application?

Color choice is typically used for circuit identification and organization. Black is the most common for general wiring; red is often used for positive leads; blue, green, yellow, and white are used for phase or circuit coding. Transparent allows visual inspection of the underlying wire or connector.

How much length do I need for my project?

For a single repair or splice, 1 metre (≈3.3 ft) is generally sufficient. For wiring harness work on a vehicle or equipment, 2–5 metres (≈6.6–16.4 ft) is a practical choice. The 10 metre (≈32.8 ft) option is well-suited for workshop stock or larger installations.

Is this tubing compatible with standard heat guns?

Yes. Standard variable-temperature heat guns are compatible with polyolefin heat shrink tubing. Move the heat gun steadily along the tubing to ensure even shrinkage and avoid overheating any single spot.

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

Heat Shrink Tubing 2:1 Ratio — 80mm & 90mm Large Diameter Wire Wrap Sleeve

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Beschreibung

Large Diameter Heat Shrink Tubing 2:1 — Reliable Insulation for Big Wire Bundles

✅ Key Features of These Large Diameter Heat Shrink Tubing Sleeves

📐 Technical Specifications — Large Diameter Polyolefin Heat Shrink Tubing

❓ Frequently Asked Questions

Heat Shrink Tubing 2:1 Ratio — 80mm & 90mm Large Diameter Wire Wrap Sleeve

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