Collection: Heat Shrink Tubing

A 2:1 ratio halves in diameter and suits most general wiring. A 3:1 ratio shrinks more, so it slides over larger connectors and still grips the wire underneath. Choose the size that fits loosely before heating. See the full Cable Management range.

Apply even heat with a heat gun, moving steadily so it shrinks uniformly without scorching. A lighter can work in a pinch but risks burning the tube. Heat from the centre outward to push out air. It pairs well with tidy runs of Cable Trunking.

Adhesive-lined (dual-wall) tubing has an inner glue layer that melts and seals the joint against moisture and dust, ideal for outdoor, marine or automotive use. Plain tubing is enough for dry indoor wiring. Browse related items in Cable Management.

For permanent joints it is usually better: it gives a tight, durable seal that doesn't unwind or get sticky over time. Tape is fine for quick temporary jobs. For neat fixed runs combine it with Cable Clips.

Heat shrink comes in a range of diameters and common colours like black, red and clear, useful for coding wires. Pick a diameter that slides over the joint before shrinking. See the broader Cable Management selection for matching parts.

Plain tubing resists splashes but isn't fully sealed. For a watertight joint use adhesive-lined tubing, whose inner glue forms a moisture barrier. For exterior cable entry also use Cable Glands.

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