What is the shrink ratio of this PVC heat shrink tubing?

PVC heat shrink tubing generally has a 2:1 shrink ratio, meaning the 36mm flat-width tube will typically shrink down to approximately 18mm in diameter when heat is applied. Confirm the final recovered diameter against your component before purchasing if tight tolerances are required.

What tools do I need to shrink this tubing?

A heat gun set to low-to-medium heat (typically 90–120°C / 194–248°F) is the most reliable tool. In a pinch, a lighter or hair dryer can work for small sections, but a heat gun gives the most even, controlled shrink without scorching the material.

Is this tubing compatible with 18650 and other cylindrical battery cells?

Yes. A 36mm flat-width PVC sleeve is commonly used to wrap single or small groups of 18650, 21700, and similar cylindrical cells. For multi-cell packs or larger form factors, confirm the recovered diameter covers your pack's outer circumference before ordering.

36mm PVC Heat Shrink Tubing — Battery Sleeve & Wire Wrap Protector

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36mm PVC Heat Shrink Tubing — Battery Sleeve & Wire Wrap Protector

HomeDIYer

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By HomeDIYer®

Colour: 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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36mm PVC Heat Shrink Tubing — Reliable Battery Sleeve & Wire Protection for DIY Builders

Whether you're rebuilding a battery pack, organizing a wire harness, or protecting exposed conductors on a workbench project, loose or unprotected connections create real safety risks. DIY electronics builders, RC hobbyists, and small-shop technicians need a sleeve solution that goes on fast, stays put, and looks clean — without sourcing industrial quantities.

This 36mm width PVC heat shrink tubing ships as a continuous roll in your chosen color and length. The flat-width measures 36mm (≈1.4"), with a typical recovered diameter of approximately 18mm (≈0.7") after heat is applied (2:1 shrink ratio). Lengths are available in 1 m (≈3.3 ft), 5 m (≈16.4 ft), 10 m (≈32.8 ft), 20 m (≈65.6 ft), 50 m (≈164 ft), and 100 m (≈328 ft). Colors include Black, White, Yellow, Fruit Green, Blue, Red, and Transparent.

Typical use cases include wrapping 18650 and 21700 cylindrical battery cells for e-bike and power tool packs, color-coding wire bundles in automotive and marine wiring projects, and providing abrasion protection on cable runs in workshop or garage environments — all common searches for PVC heat shrink tubing for battery packs and wire sleeve protector rolls.

🔌 Compatibility Note: This tubing is sized for components with an outer diameter up to approximately 18mm (≈0.7") after shrinking. Verify your component's outer circumference before ordering. Suitable for low-voltage applications — see specs below.

✅ Key Features of These 36mm PVC Heat Shrink Tubing Rolls

🎨7 Color Options — Available in Black, White, Yellow, Fruit Green, Blue, Red, and Transparent, making color-coded wire identification and battery sleeve labeling straightforward on any build.
📏6 Length Choices — From 1 m for quick repairs to 100 m for production runs, so you only buy what your project actually needs — no waste, no shortage.
🔥Clean 2:1 Shrink Ratio — Applies evenly with a standard heat gun, conforming snugly around cylindrical battery cells, wire bundles, and irregular connector shapes without bubbling or splitting.
✂️Easy to Cut & Install — Cuts cleanly with scissors before shrinking; no special tooling required. Ideal for field repairs and bench work where speed matters.
🛡️Abrasion & Moisture Resistance — PVC construction provides a protective barrier against light moisture, dust, and mechanical abrasion on wire harnesses and exposed conductors in indoor and sheltered environments.
⚡Low-Voltage Rated Construction — Designed for low-voltage DIY electronics, RC battery packs, and automotive wiring applications where a reliable insulating sleeve is needed without over-engineering the solution.

📐 Technical Specifications — PVC Heat Shrink Tubing

Material	PVC (Polyvinyl Chloride)
Flat Width	36mm (≈1.4")
Shrink Ratio	2:1 (typical)
Recovered Diameter (approx.)	~18mm (≈0.7")
Available Lengths	1 m / 5 m / 10 m / 20 m / 50 m / 100 m
Available Colors	Black, White, Yellow, Fruit Green, Blue, Red, Transparent
Shrink Temperature	Typically 90–120°C (194–248°F)
Operating Temperature Range	Typically -20°C to 105°C (-4°F to 221°F)
Voltage Rating	See variant options — contact us to confirm for your application
Wall Thickness (before shrink)	See variant options
Application Tool	Heat gun (recommended), lighter (small sections only)
Typical Use	Battery packs, wire harnesses, cable protection, DIY electronics

⚠️ Spec Confirmation: Wall thickness and exact voltage rating vary by production batch. If your application has strict tolerances, contact us before ordering and we'll confirm the current spec sheet.

❓ Frequently Asked Questions

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

Measure the total run of wire, battery pack, or component you need to cover, then add 10–15% extra for overlap and trimming. For example, a 10-meter roll (≈32.8 ft) typically covers a single large battery pack build with room to spare, while a 1-meter length (≈3.3 ft) suits quick repairs or prototyping. Available lengths: 1 m, 5 m, 10 m, 20 m, 50 m, and 100 m.

What is the shrink ratio, and what diameter will it recover to?

This PVC heat shrink tubing has a typical 2:1 shrink ratio. Starting at a 36mm (≈1.4") flat width, it will generally recover to approximately 18mm (≈0.7") in diameter after heat is applied. Confirm the recovered diameter against your component's outer measurement before ordering if tight fit is critical.

Can this tubing be used outdoors or in wet environments?

Standard PVC heat shrink tubing provides basic moisture resistance suitable for indoor and light-duty sheltered applications. For prolonged outdoor exposure, UV-heavy environments, or submersion, an adhesive-lined or polyolefin-based tubing is generally recommended instead.

Is this compatible with 18650 and 21700 battery cells?

Yes. A 36mm flat-width PVC sleeve is commonly used to wrap individual 18650 and 21700 cylindrical cells, as well as small multi-cell groups. For larger battery packs, measure the pack's outer circumference and confirm the recovered diameter (typically ~18mm) will provide the snug fit you need.

What tools do I need to apply this heat shrink tubing?

A heat gun set to low-to-medium heat (typically 90–120°C / 194–248°F) is the most reliable tool for even, controlled shrinking. A lighter works for small sections in a pinch, but a heat gun gives cleaner results and reduces the risk of scorching the material or the component underneath.

What is the voltage and temperature rating?

PVC heat shrink tubing of this type is generally rated for low-voltage applications (typically up to 600V) and an operating temperature range of approximately -20°C to 105°C (-4°F to 221°F). Contact us to confirm exact ratings for your specific application before ordering.

Can I cut this tubing to custom lengths before shrinking?

Yes — PVC heat shrink tubing cuts cleanly with scissors or a utility knife. Always cut to your desired length before applying heat. Once the tubing has shrunk, trimming is significantly more difficult and may result in uneven edges.

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

36mm PVC Heat Shrink Tubing — Battery Sleeve & Wire Wrap Protector

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Description

36mm PVC Heat Shrink Tubing — Reliable Battery Sleeve & Wire Protection for DIY Builders

✅ Key Features of These 36mm PVC Heat Shrink Tubing Rolls

📐 Technical Specifications — PVC Heat Shrink Tubing

❓ Frequently Asked Questions

36mm PVC Heat Shrink Tubing — Battery Sleeve & Wire Wrap Protector

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