Heat Shrink Tubing 2:1 Ratio — φ0.6mm Polyolefin Wire Sleeve, 7 Colors, 1–10m

Measure the section of wire or splice you need to cover, then add at least 10–15mm (≈1/2") on each end for overlap. For a single wire splice, 1m is typically more than enough. For wiring harness projects or automotive builds, the 5m or 10m options give you flexibility to cut to length as needed.

Polyolefin 2:1 heat shrink tubing generally provides solid electrical insulation rated at 600V in most standard formulations. It also adds mechanical protection against abrasion and minor impacts. For high-voltage or industrial applications, please confirm the voltage rating with us before ordering.

Standard polyolefin heat shrink tubing is moisture-resistant and generally suitable for light outdoor use. However, it is not adhesive-lined, so it does not create a fully waterproof seal. For fully weatherproof connections, consider adhesive-lined (3:1) tubing instead.

The φ0.6mm inner diameter is designed for very fine wires, typically in the range of 30–34 AWG (approximately 0.05–0.25mm² conductor cross-section). This makes it ideal for electronics, sensor wiring, and precision instrument leads. If you are unsure, measure your wire's outer diameter before shrinking — the tubing should slide over the wire with a little clearance.

Polyolefin 2:1 tubing typically begins to shrink at around 70–90°C (158–194°F) and fully recovers by 120°C (248°F). A standard heat gun on a low setting works well. You can also use a lighter for quick field repairs, though a heat gun gives more even results and reduces the risk of scorching.

Color choice is largely a matter of wiring convention and personal preference. In automotive and electrical work, black is the most common for general insulation, red is typically used for positive leads, and other colors help with circuit identification. The transparent option lets you see the wire or label underneath — useful for inspection or color-coded wire bundles.

Yes. This tubing is compatible with any standard heat gun. Set your heat gun to a low or medium setting (generally 150–200°C / 300–390°F at the nozzle) and move it evenly along the tubing to avoid hot spots. For φ0.6mm tubing, a precision nozzle attachment is recommended to focus heat on the small diameter.