Black Heat Shrink Tubing 2:1 — 180mm Diameter Electrical Sleeve for Cable Wire Protection

This tubing has a 180mm (≈7.1") expanded inner diameter, so it generally fits cables and bundles up to that diameter before shrinking. After applying heat, it shrinks to approximately half that size (2:1 ratio), so the recovered diameter is typically around 90mm (≈3.5"). Always measure your cable bundle before selecting a size.

A 2:1 shrink ratio means the tubing shrinks to approximately half its original expanded diameter when heat is applied. For example, 180mm expanded becomes roughly 90mm recovered, forming a snug, protective sleeve around your cable or wire bundle.

Polyolefin heat shrink tubing typically activates at around 90–120°C (194–248°F). A heat gun is the recommended tool for even, controlled shrinking. Avoid open flames, which can cause uneven shrinkage or scorching.

Standard polyolefin heat shrink tubing generally provides good moisture resistance and is suitable for many outdoor applications. However, for fully waterproof sealing, an adhesive-lined (dual-wall) variant is typically recommended. Check the product variant details or contact us to confirm suitability for your specific environment.

Polyolefin heat shrink tubing is generally manufactured to meet RoHS compliance standards and is widely used for electrical insulation, wire harnessing, and cable management. For specific compliance documentation, please contact us to confirm.

Choose based on the total length of cable or wire runs you need to cover. For single repairs or short cable ends, 1 Meter is typically sufficient. For larger wiring projects, cable bundling, or multiple runs, the 2 Meter option offers better value and reduces the need for multiple pieces.

Yes. Heat shrink tubing can be cut to any length with scissors or a utility knife before application. Cut slightly longer than needed, as the tubing may shorten slightly along its length when heat is applied.