Clear Heat Shrink Tubing 2:1 – Transparent Electrical Sleeving 0.6mm to 80mm

Select a diameter (unshrunk) that is typically 20–30% larger than the object you want to cover. For example, to cover a 4mm wire bundle, choose the 5mm or 6mm unshrunk size. After shrinking at the 2:1 ratio, it will conform tightly. When in doubt, size up — you can always apply more heat to shrink further.

A 2:1 shrink ratio means the tubing will shrink to approximately half its original unshrunk diameter when heat is applied. For example, a 10mm (unshrunk) tube will shrink down to roughly 5mm. This is the most common ratio for general electrical insulation and wire bundling applications.

Polyolefin heat shrink tubing generally begins to shrink at around 70–90°C (158–194°F) and fully recovers at approximately 120°C (248°F). A heat gun is recommended for even, controlled shrinking. Avoid open flames, which can cause uneven shrinkage or scorching.

Polyolefin heat shrink tubing is generally resistant to moisture and mild UV exposure, making it suitable for short-term or sheltered outdoor use. For prolonged outdoor or direct-sunlight applications, consider using UV-stabilized or adhesive-lined variants for added protection.

Yes. The range of diameters (0.6mm to 80mm unshrunk) covers most standard wire gauges from AWG 30 down to large cable bundles and connectors. The clear tubing is compatible with copper, aluminum, and most insulated conductors. Always verify the unshrunk diameter against your connector or wire bundle size before ordering.

Use sharp scissors or a utility knife for clean cuts. For best results, cut the tubing slightly longer than the area you need to cover — typically add 5–10mm on each end to allow for any longitudinal shrinkage that may occur during heat application.

Standard polyolefin heat shrink tubing is generally rated for low-voltage applications, typically up to 600V. For high-voltage or industrial electrical applications, please contact us to confirm the specific rating of the product you are ordering.