PVC Heat Shrink Tubing — Reliable Battery Wrap & Wire Insulation for Every DIY Project
Whether you're rebuilding a battery pack, organizing a wiring harness, or protecting exposed conductors, finding tubing that fits cleanly and shrinks evenly can be surprisingly frustrating. Loose sleeves, wrong diameters, and tubing that splits under heat are all too common — especially when you're mid-project. This PVC heat shrink tubing is designed for hobbyists, makers, and tradespeople who need a dependable, color-coded insulation solution that actually works the first time.
Each listing covers a single continuous length of PVC heat shrink tubing, available in diameters from 40mm (≈1.57") to 66mm (≈2.60") and lengths of 1M (≈3.3 ft), 2M (≈6.6 ft), 5M (≈16.4 ft), and 10M (≈32.8 ft). The tubing is made from flexible PVC and is available in 9 colors — black, white, yellow, green, blue, red, transparent, purple, and gray — making it easy to color-code connections or match existing installations.
Typical use cases include wrapping 18650 and 21700 lithium battery cells for e-bike and RC battery packs, sleeving wire bundles in automotive and marine wiring projects, and providing strain relief and insulation on cable joints and connectors. The wide diameter range makes this tubing a go-to choice for large-format battery wrap applications where standard small-bore tubing falls short.
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Compatibility Note: This tubing is designed for use with standard cylindrical battery cells (18650, 21700, 26650, and similar formats), wire bundles, and cable assemblies with outer diameters up to the listed size. Always measure your component before selecting a diameter. PVC heat shrink tubing typically recovers to approximately 50% of its supplied diameter.
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Sizing Tip: Select a tubing diameter that is slightly larger than your component's outer diameter before shrinking. If you are unsure which size fits your application, please contact us to confirm before ordering.
✅ Key Features of These PVC Heat Shrink Tubing Sleeves
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🔋Battery Pack Ready — Sized from 40mm to 66mm to fit single lithium cells and multi-cell battery packs used in e-bikes, RC vehicles, and power tool rebuilds.
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🎨9-Color Selection — Available in black, white, yellow, green, blue, red, transparent, purple, and gray for easy circuit identification and color-coded wire insulation.
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🔥Low-Temperature Activation — PVC formulation generally shrinks at 70°C–90°C (158°F–194°F), compatible with standard heat guns without risk of scorching adjacent components.
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📏Flexible Length Options — Choose from 1M, 2M, 5M, or 10M to match your project scale, from single-cell wraps to bulk wiring harness jobs.
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⚡Electrical Insulation — Provides a snug, conforming insulation layer over wire joints, terminals, and battery contacts, reducing the risk of shorts in DIY electrical assemblies.
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✂️Easy to Cut and Apply — Flexible PVC material cuts cleanly with scissors or a utility knife and slides easily over components before shrinking, even on larger-diameter assemblies.
📐 Technical Specifications — PVC Heat Shrink Tubing
| Material |
PVC (Polyvinyl Chloride) |
| Available Diameters |
40mm (≈1.57"), 43mm (≈1.69"), 45mm (≈1.77"), 50mm (≈1.97"), 55mm (≈2.17"), 60mm (≈2.36"), 66mm (≈2.60") |
| Available Lengths |
1M (≈3.3 ft), 2M (≈6.6 ft), 5M (≈16.4 ft), 10M (≈32.8 ft) |
| Available Colors |
Black, White, Yellow, Green, Blue, Red, Transparent, Purple, Gray |
| Shrink Ratio |
Typically 2:1 (recovers to approximately 50% of supplied diameter) |
| Activation Temperature |
Generally 70°C–90°C (158°F–194°F) |
| Wall Thickness (before shrink) |
See variant options |
| Voltage Rating |
Contact us to confirm |
| Suitable Applications |
Battery wrapping, wire bundling, cable insulation, strain relief |
| Country of Origin |
See variant options |
❓ Frequently Asked Questions
How do I choose the right diameter for my application?
Measure the outer diameter of the object you need to cover, then select a tubing size that is slightly larger before shrinking. For example, the 40mm size is generally suitable for battery packs or wire bundles up to approximately 38mm in diameter. PVC heat shrink tubing typically shrinks to about 50% of its original diameter when heat is applied, so always verify the recovered diameter fits your component before ordering.
What temperature is needed to shrink this tubing?
PVC heat shrink tubing generally activates at temperatures between 70°C–90°C (158°F–194°F). A heat gun set to low or medium is typically sufficient. Avoid using open flames, as uneven heat can cause uneven shrinkage or damage the tubing surface.
How strong is the insulation provided by this tubing?
PVC heat shrink tubing generally provides good electrical insulation for low-to-medium voltage DIY applications, including battery pack wrapping, wire bundling, and cable management. For high-voltage or industrial-grade applications, please contact us to confirm suitability before purchasing.
Can this tubing be used outdoors or in wet environments?
PVC heat shrink tubing offers moderate resistance to moisture and light UV exposure, making it suitable for light outdoor use in most cases. For prolonged outdoor exposure, harsh chemical environments, or marine applications, we recommend contacting us to confirm compatibility with your specific conditions.
Is this compatible with 18650, 21700, or 26650 lithium battery cells?
Yes — this tubing is commonly used for wrapping individual lithium cells and assembled battery packs. The 40mm size is generally suitable for single 18650 or 21700 cells, while larger diameters (50mm–66mm) are typically used for multi-cell packs. Always measure your assembled pack's outer diameter before selecting a size.
How do I choose the right length for my project?
We offer 1M (≈3.3 ft), 2M (≈6.6 ft), 5M (≈16.4 ft), and 10M (≈32.8 ft) options. For single battery wraps or small repairs, 1M is typically sufficient. For larger wiring harness jobs or bulk projects, 5M or 10M rolls offer better value per meter. Generally, add 10–15% to your measured length to account for trimming and waste.
Does the color affect the tubing's performance or shrink ratio?
No — all color variants share the same PVC material and shrink characteristics. Color selection is purely for identification, organization, or aesthetics. The transparent option is particularly popular when you want to display labels, markings, or the underlying component through the tubing.
🛒 Select your size, color, and length above, then add to cart — ships from our US warehouse.
