What is the shrink ratio of this PVC tubing?

PVC heat shrink tubing typically has a 2:1 shrink ratio. This 75mm flat-width tubing has a recovered (post-shrink) diameter of approximately 37–38mm (≈1.46–1.50”). Always verify your cable or battery diameter before ordering.

75mm PVC Heat Shrink Tubing for Battery Packs & Large Cable Bundles — Multicolor - HomeDIYer

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75mm PVC Heat Shrink Tubing for Battery Packs & Large Cable Bundles — Multicolor

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75mm PVC Heat Shrink Tubing — Reliable Insulation for Battery Packs & Large Cable Bundles

If you've ever finished building a battery pack or wiring harness only to find your heat shrink tubing is too narrow, you know the frustration. This 75mm flat-width PVC heat shrink tubing is sized specifically for larger-diameter applications — battery cell arrays, thick cable bundles, and oversized wire sleeves — where standard small-diameter tubing simply won't reach.

Each roll is made from flexible PVC with a 2:1 shrink ratio. The flat (lay-flat) width is 75mm (≈2.95"), recovering to approximately 37–38mm (≈1.46–1.50") after heat is applied. Available in lengths of 1m (≈3.3 ft), 3m (≈9.8 ft), 5m (≈16.4 ft), 10m (≈32.8 ft), 20m (≈65.6 ft), and 30m (≈98.4 ft), and in 8 colors: Black, White, Green, Yellow, Blue, Red, Transparent, and Fruit Green.

Typical use cases include wrapping DIY lithium-ion battery packs for e-bikes and power tools, color-coding large automotive wire harnesses, and providing abrasion protection on industrial cable runs — all scenarios where a color-coded large-diameter heat shrink sleeve for battery packs makes a measurable difference in build quality and safety.

🔌 Compatibility Note: This tubing is sized for cables and battery packs with an outer diameter up to approximately 37–38mm (≈1.5") after shrinkage. Verify your assembly's diameter before ordering. Not compatible with heat-sensitive components — keep heat gun moving during application.

✅ Key Features of These 75mm PVC Heat Shrink Tubes

📏75mm Flat-Width Sizing — Designed for large-diameter battery packs, thick cable bundles, and wire harnesses where standard tubing falls short; recovered inner diameter is typically 37–38mm (≈1.5").
🎨8-Color Selection — Choose from Black, White, Green, Yellow, Blue, Red, Transparent, and Fruit Green for intuitive color-coding of polarity, circuit zones, or wire harness branches.
🔥2:1 Shrink Ratio — Shrinks evenly with a standard heat gun at approximately 70–90°C (158–194°F), conforming snugly to irregular shapes without cracking or splitting.
🛡️Abrasion & Moisture Resistance — PVC construction provides a protective sleeve against mechanical abrasion, dust, and incidental moisture in indoor and light-duty outdoor wiring applications.
✂️Cut-to-Length Rolls — Available in six roll lengths (1m to 30m) so you buy exactly what your project needs — from a single battery wrap to a full production run of cable assemblies.
⚡Low-Voltage Insulation — Suitable for low-voltage wiring and battery pack insulation, generally rated for applications up to 600V; ideal for DIY e-bike battery builds, RC packs, and automotive wire loom protection.

📐 Technical Specifications — PVC Heat Shrink Tubing

Material	PVC (Polyvinyl Chloride)
Flat Width (Before Shrink)	75mm (≈2.95")
Recovered Inner Diameter (After Shrink)	Typically 37–38mm (≈1.46–1.50")
Shrink Ratio	2:1
Shrink Temperature	Typically 70–90°C (158–194°F)
Voltage Rating	See variant options — contact us to confirm
Wall Thickness (Before Shrink)	See variant options
Available Colors	Black, White, Green, Yellow, Blue, Red, Transparent, Fruit Green
Available Lengths	1m (≈3.3 ft), 3m (≈9.8 ft), 5m (≈16.4 ft), 10m (≈32.8 ft), 20m (≈65.6 ft), 30m (≈98.4 ft)
Packaging	Single roll per order unit
Recommended Application Tool	Heat gun (low to medium setting)

⚠️ Spec Confirmation: Wall thickness and exact voltage rating may vary by production batch. If your application has strict electrical specifications, please contact us before ordering to confirm the current batch specs.

❓ Frequently Asked Questions

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

Measure the total length of the cable or battery pack you need to cover, then add at least 10–15% extra for overlap and trimming. For a single 18650 battery cell (typically ~65mm long), a 1-meter roll is generally sufficient for multiple wraps. For larger battery packs or wiring harnesses, the 5m, 10m, or longer rolls offer better value per meter.

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

This PVC heat shrink tubing has a 2:1 shrink ratio. Starting at a 75mm flat width, it typically recovers to an inner diameter of approximately 37–38mm (≈1.46–1.50") after heat is applied. Always measure your cable or battery pack's outer diameter and confirm it falls within this recovered range before ordering.

Can this tubing be used outdoors or in wet environments?

Standard PVC heat shrink tubing generally provides basic moisture resistance and is suitable for indoor and light-duty outdoor use. It is not waterproof or rated for continuous submersion. For harsh outdoor or marine environments, a dual-wall adhesive-lined heat shrink tubing is typically recommended instead.

What temperature is needed to shrink this tubing, and what tool should I use?

PVC heat shrink tubing generally begins to shrink at around 70–90°C (158–194°F). A heat gun set to low or medium is the most reliable tool — keep it moving in a sweeping motion to avoid hot spots. Avoid open flames, which can cause uneven shrinkage or scorching. A hair dryer may work for thin-walled tubing but is generally less consistent than a dedicated heat gun.

Is this tubing compatible with lithium-ion battery packs?

Yes. The 75mm flat width is commonly used to wrap cylindrical lithium-ion battery packs — such as 18650 or 21700 cell arrays — and is a standard choice for DIY e-bike, power tool, and RC battery builds. Confirm your pack's outer diameter falls within the recovered diameter range (typically 37–38mm) before applying heat.

How do I choose between the 8 available colors?

Color choice is typically functional or organizational. Black is the most common for general wiring and battery packs. Red and blue are often used to indicate polarity (positive/negative) in electrical builds. Transparent allows visual inspection of the underlying cable or label. Yellow, green, and fruit green are popular for color-coding wire harnesses in automotive or industrial applications.

What is the voltage rating of this heat shrink tubing?

PVC heat shrink tubing of this type is generally rated for low-voltage applications, typically up to 600V. For high-voltage or industrial electrical work, please contact us to confirm the specific rating of the product you receive, as specifications can vary by production batch.

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

75mm PVC Heat Shrink Tubing for Battery Packs & Large Cable Bundles — Multicolor

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Beschreibung

75mm PVC Heat Shrink Tubing — Reliable Insulation for Battery Packs & Large Cable Bundles

✅ Key Features of These 75mm PVC Heat Shrink Tubes

📐 Technical Specifications — PVC Heat Shrink Tubing

❓ Frequently Asked Questions

75mm PVC Heat Shrink Tubing for Battery Packs & Large Cable Bundles — Multicolor

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