11mm Heat Shrink Tubing 2:1 Ratio – Electrical Wire Sleeve & Cable Wrap

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11mm Heat Shrink Tubing 2:1 Ratio – Electrical Wire Sleeve & Cable Wrap

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Color: Black

Length: 1 Meter

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11mm Heat Shrink Tubing 2:1 — Reliable Insulation for Electrical Wire & Cable Protection

Whether you're rewiring a vehicle, tidying up a home electrical panel, or repairing marine cables, exposed wire connections are a safety hazard and a reliability risk. DIYers, auto technicians, and electricians who need a clean, durable insulation solution turn to heat shrink tubing to seal, protect, and organize their work in minutes.

Each roll of this 11mm heat shrink tubing features a 2:1 shrink ratio — shrinking from 11mm down to approximately 5.5mm (≈7/16" to ≈7/32") when heat is applied. Available in seven colors (Black, White, Red, Green, Yellow, Blue, and Transparent) and six lengths (1 Meter / ≈3.3 ft through 50 Meters / ≈164 ft), so you can match the exact quantity and color-coding your project requires. The tubing is made from polyolefin, a material known for its flexibility, chemical resistance, and stable performance across a wide temperature range.

Typical use cases include automotive wiring harness repair and color-coded circuit identification, marine and RV electrical connections where moisture resistance matters, and workshop or home electrical projects where neat, professional-looking wire management is the goal — all situations where a reliable electrical wire sleeve makes the difference between a lasting repair and a recurring problem.

🔌 Compatibility: Fits wire bundles and connectors with an outer diameter up to approximately 10mm (≈3/8"). Suitable for AWG 4–8 single wires or equivalent metric gauges. Works with standard heat guns. Not designed for use with open flames.

✅ Key Features of These 11mm Heat Shrink Tubing Sleeves

🔥2:1 Shrink Ratio — Shrinks from 11mm to approximately 5.5mm, creating a snug, form-fitting sleeve around wires, connectors, and cable jackets for secure electrical insulation.
🎨7 Color Options — Black, White, Red, Green, Yellow, Blue, and Transparent allow color-coded wire identification across automotive, marine, and industrial wiring systems.
📏6 Length Options — Choose from 1 Meter (≈3.3 ft) to 50 Meters (≈164 ft) to match single-job needs or bulk wiring projects without waste.
🧪Polyolefin Material — Offers flexibility after shrinking, resistance to common chemicals and oils, and stable performance across a broad temperature range — suited for engine bays, outdoor enclosures, and workshop environments.
✂️Easy to Cut & Apply — Cuts cleanly with scissors or a utility knife before shrinking; no fraying. Slide over the wire, apply heat evenly, and the sleeve conforms tightly in seconds.
🛡️Moisture & Abrasion Resistance — Once shrunk, the tubing forms a protective barrier against moisture ingress, dust, and light abrasion — extending the service life of splices, terminals, and exposed conductors.

📐 Technical Specifications — 11mm Heat Shrink Tubing

Expanded Inner Diameter	11mm (≈7/16")
Recovered Inner Diameter	Approximately 5.5mm (≈7/32") after full shrink
Shrink Ratio	2:1
Material	Polyolefin
Activation Temperature	Typically ~90°C (194°F); full shrink at ~120°C (248°F)
Available Colors	Black, White, Red, Green, Yellow, Blue, Transparent
Available Lengths	1m (≈3.3 ft), 5m (≈16.4 ft), 10m (≈32.8 ft), 20m (≈65.6 ft), 30m (≈98.4 ft), 50m (≈164 ft)
Wall Thickness (before shrink)	See variant options
Voltage Rating	Contact us to confirm
Flame Retardancy	Contact us to confirm
Application Method	Heat gun recommended
Suitable Wire Gauge (approx.)	AWG 4–8 single wire; bundles up to ~10mm OD

⚠️ Note: Voltage rating and flame retardancy specifications vary by production batch. If your application requires certified ratings (e.g., UL, RoHS, VW-1), please contact us before ordering to confirm compliance.

❓ Frequently Asked Questions

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

Measure the total length of wire or cable you need to cover, then add at least 10–15% extra for overlap and trimming. For example, if you need to cover 90cm (≈35.4") of wiring, a 1 Meter roll is typically sufficient for a single run. For larger wiring projects or repeated use, the 5 Meter or 10 Meter options generally offer better value per foot.

What shrink ratio does this tubing use, and why does it matter?

This tubing uses a 2:1 shrink ratio, meaning it shrinks to approximately half its original diameter when heat is applied. An 11mm tube will shrink down to roughly 5.5mm (≈7/32"), making it suitable for wires and connectors in that diameter range. Always verify your wire's outer diameter before selecting a size to ensure a snug fit.

What temperature is needed to shrink this tubing?

Most polyolefin heat shrink tubing in this category typically activates at around 90°C (194°F) and fully shrinks at approximately 120°C (248°F). A heat gun is the recommended tool — move it slowly and evenly along the tubing. Avoid open flames, as uneven heat can cause bubbling or uneven shrinkage.

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

Standard polyolefin heat shrink tubing generally provides good moisture resistance once properly shrunk, making it suitable for many indoor and light outdoor applications such as automotive engine bays and outdoor junction boxes. For fully waterproof or submersible installations, adhesive-lined (dual-wall) heat shrink tubing is generally recommended instead. Contact us to confirm suitability for your specific environment.

What wire gauges or connector sizes fit inside 11mm heat shrink tubing?

An 11mm inner diameter typically accommodates wire bundles, connectors, or cable jackets with an outer diameter up to approximately 10mm (≈3/8"). This is commonly used for medium-gauge wire bundles, automotive wiring harnesses, and larger terminal connectors. For single wires, this size is generally suited to AWG 4–8 or equivalent metric sizes. If you're unsure, measure your wire's outer diameter before ordering.

Does the color affect the electrical or thermal performance?

No — color is purely for identification and organization purposes. All color variants in this listing share the same material composition and performance characteristics. Color-coding is widely used in automotive, marine, and industrial wiring to distinguish circuits at a glance, reducing the risk of miswiring during maintenance.

Can I cut this tubing to custom lengths?

Yes. The tubing can be cut to any length with standard scissors or a utility knife before shrinking. Cut ends are clean and do not fray, making it easy to customize for each splice, terminal, or connector in your project.

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

11mm Heat Shrink Tubing 2:1 Ratio – Electrical Wire Sleeve & Cable Wrap

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Beschreibung

11mm Heat Shrink Tubing 2:1 — Reliable Insulation for Electrical Wire & Cable Protection

✅ Key Features of These 11mm Heat Shrink Tubing Sleeves

📐 Technical Specifications — 11mm Heat Shrink Tubing

❓ Frequently Asked Questions

11mm Heat Shrink Tubing 2:1 Ratio – Electrical Wire Sleeve & Cable Wrap

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