27mm PVC Heat Shrink Tubing — Wire & Battery Sleeve Protector

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27mm PVC Heat Shrink Tubing — Wire & Battery Sleeve Protector

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Colour: Black

Length: 1 Meter

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$6.34 USD

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27mm PVC Heat Shrink Tubing — Reliable Wire & Battery Sleeve Protector for Every Project

Finding the right-sized heat shrink tubing for individual battery cells, wire bundles, or connector insulation shouldn't mean buying a bulk assortment you'll never fully use. Whether you're a hobbyist rebuilding a battery pack, an electrician color-coding a wiring harness, or a maker insulating soldered joints, having a consistent 27mm flat-lay PVC heat shrink tubing in the right color and length makes the job cleaner and faster.

This tubing has a flat-lay width of 27mm, which corresponds to an inner diameter of approximately 17mm (≈11/16") before shrinking — suitable for wrapping 18650 and 21700 lithium cells, small cable bundles, and connector assemblies. It is available in 10 colors (Black, White, Yellow, Green, Blue, Purple, Transparent, Silver Grey, Red, and Grass Green) and in lengths from 1 Meter (≈39.4") up to 200 Meters (≈656 ft), so you can order exactly what your project requires. The PVC material shrinks at a typical 2:1 ratio when heat is applied.

Common applications include wrapping individual 18650 or 21700 lithium battery cells for insulation and identification, sleeving multi-conductor wire bundles in automotive and marine wiring harnesses, and protecting soldered connector joints in RC vehicles, power tools, and DIY electronics builds where a clean, abrasion-resistant finish is needed.

ℹ️ Compatibility Note: The 27mm measurement is the flat-lay (folded) width. Pre-shrink inner diameter is approximately 17mm (≈11/16"). Fits wire bundles and battery cells up to approximately 15–16mm outer diameter. Shrinks to roughly half the original diameter at a typical 2:1 ratio.

⚠️ Sizing Tip: Measure your wire bundle or battery cell's outer diameter before ordering. If you are unsure whether 27mm flat-lay is the right fit for your application, contact us to confirm before purchasing.

✅ Key Features of These 27mm PVC Heat Shrink Tubes

📏27mm Flat-Lay Width — Pre-shrink inner diameter of approximately 17mm (≈11/16") fits 18650 and 21700 lithium battery cells, small wire bundles, and connector assemblies without stretching or tearing during installation.
🎨10 Color Options — Choose from Black, White, Yellow, Green, Blue, Purple, Transparent, Silver Grey, Red, or Grass Green to color-code wire polarity, battery cell type, or circuit function for fast visual identification.
📦Flexible Length Options — Available from 1 Meter (≈39.4") for single-use jobs up to 200 Meters (≈656 ft) for production runs and workshop stock, so you only buy what you need.
🔥Low-Temperature Activation — PVC material shrinks reliably at approximately 70–90°C (158–194°F) with a standard heat gun, giving you control over the shrink process without scorching the wire insulation underneath.
⚡Electrical Insulation Sleeve — Provides a protective insulating layer over soldered joints, battery cell contacts, and wire connections, reducing short-circuit risk in RC vehicles, power tool battery packs, and DIY electronics.
✂️Cut-to-Length Convenience — Each length can be cut to any shorter size with scissors before applying heat, letting you get multiple wraps from a single piece and minimize waste on small connector or cell jobs.

📐 Technical Specifications — 27mm PVC Heat Shrink Tubing

Material	PVC (Polyvinyl Chloride)
Flat-Lay Width	27mm (≈1-1/16")
Pre-Shrink Inner Diameter (approx.)	~17mm (≈11/16")
Shrink Ratio	Typically 2:1
Activation Temperature	Typically 70–90°C (158–194°F)
Available Colors	Black, White, Yellow, Green, Blue, Purple, Transparent, Silver Grey, Red, Grass Green
Available Lengths	1M (≈39.4"), 5M (≈16.4 ft), 10M (≈32.8 ft), 20M (≈65.6 ft), 50M (≈164 ft), 100M (≈328 ft), 200M (≈656 ft)
Wall Thickness (after shrink)	See variant options
Typical Applications	Battery cell wrapping, wire bundle insulation, connector sleeving, cable harness color-coding
Flame Resistance	Contact us to confirm
Operating Temperature Range	Contact us to confirm

❓ Frequently Asked Questions

How do I choose the right length for my project?

For single-use projects like wrapping one battery cell or insulating a connector, 1 meter (≈39.4") is generally sufficient. For ongoing workshop use or production runs, the 5M (≈16.4 ft), 10M (≈32.8 ft), or longer options offer better value per meter. If you're outfitting a full wiring harness or production line, the 50M–200M rolls are the most cost-effective choice.

What does '27mm width' mean — is that the inner diameter?

The 27mm measurement refers to the flat-lay width — the width of the tubing when it is flattened. When opened into a tube, the inner circumference is approximately twice the flat-lay width, giving an inner diameter of roughly 17mm (≈11/16") before shrinking. After applying heat, it shrinks to approximately half that diameter at a typical 2:1 ratio.

What is the shrink ratio and how much will it shrink?

PVC heat shrink tubing typically has a 2:1 shrink ratio, meaning it shrinks to roughly half its original diameter when heat is applied. Lengthwise shrinkage is generally minimal — typically less than 5% — so a 1-meter piece will remain close to 1 meter after shrinking.

Can this tubing be used outdoors or in wet conditions?

PVC heat shrink tubing provides basic moisture resistance and is suitable for general indoor and light outdoor use. It is not rated as fully waterproof or submersible. For harsh outdoor, marine, or high-humidity environments, a dual-wall adhesive-lined heat shrink tubing is generally recommended for a sealed, waterproof finish.

What wire or cable sizes does 27mm heat shrink tubing fit?

With a pre-shrink inner diameter of approximately 17mm (≈11/16"), this tubing generally fits wire bundles, cable assemblies, and battery cells up to about 15–16mm in outer diameter. It is commonly used for 18650 and 21700 lithium cell wrapping, multi-conductor cable bundles, and connector insulation. For exact fit, measure your cable or bundle's outer diameter before ordering.

Does the color affect the electrical insulation properties?

No. The color is purely aesthetic and does not affect the electrical insulation or shrink performance of the tubing. Color-coding is a practical way to identify wire polarity, circuit function, or battery cell type at a glance — a common practice in automotive wiring, electronics assembly, and battery pack building.

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

PVC heat shrink tubing typically activates at around 70–90°C (158–194°F). A heat gun set to low or medium is the recommended tool. Keep the heat gun moving steadily along the length to apply even heat and avoid scorching. Avoid open flames such as lighters or torches, as these can unevenly shrink or damage the material.

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

27mm PVC Heat Shrink Tubing — Wire & Battery Sleeve Protector

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27mm PVC Heat Shrink Tubing — Reliable Wire & Battery Sleeve Protector for Every Project

✅ Key Features of These 27mm PVC Heat Shrink Tubes

📐 Technical Specifications — 27mm PVC Heat Shrink Tubing

❓ Frequently Asked Questions

27mm PVC Heat Shrink Tubing — Wire & Battery Sleeve Protector

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