Clear Heat Shrink Tubing 2:1 — Transparent Wire Sleeving, Ø 0.6mm–12mm

Measure the outer diameter of the wire or component you need to cover, then select a tubing size whose expanded diameter is at least 10–20% larger than that measurement. With a 2:1 ratio, the tubing typically recovers to approximately half its expanded diameter. For example, 6.0mm tubing generally shrinks down to roughly 3.0mm (≈1/8"). When in doubt, size up — it is easier to achieve a clean shrink with a slightly oversized tube than to force an undersized one over a connector.

Clear tubing lets you see the wire, solder joint, or component underneath after shrinking — useful for quality inspection, verifying polarity markings, or maintaining a clean aesthetic on visible wiring. It is also commonly used in electronics prototyping and repair where color-coding is not required, and in applications where the underlying wire color or label needs to remain readable.

Most 2:1 polyolefin heat shrink tubing typically activates at around 90°C (194°F) and fully recovers at approximately 120°C (248°F). A heat gun set to low or medium is the recommended tool — move it steadily along the tubing to avoid scorching. For very fine diameters (0.6mm–1.5mm), use a low heat setting and keep the gun moving to prevent melting or distortion. Avoid using an open flame where possible.

Polyolefin heat shrink tubing is generally flame-retardant and in most cases meets UL 224 or equivalent standards. It provides good resistance to moisture, UV exposure, and mild chemicals, making it suitable for many indoor and protected outdoor applications. For continuously wet or submerged environments, an adhesive-lined (3:1) variant is generally recommended instead, as standard 2:1 tubing does not form a waterproof seal.

The diameter range of 0.6mm to 12mm covers a wide span of wire gauges. As a general guide:

• 0.6mm–1.0mm: typically suits AWG 28–32 fine signal wires and component leads
• 1.5mm–2.5mm: generally fits AWG 22–26 standard hookup wire
• 3.0mm–5.0mm: typically covers AWG 14–20 power wire and small connectors
• 6.0mm–12mm: generally suits AWG 10–14 heavier wire and connector boots

Always measure the widest point of the wire or connector before selecting a size.

To convert mm to inches, divide by 25.4. Common conversions from this range:

• 0.6mm ≈ 0.024" (≈1/42")
• 1.0mm ≈ 0.039" (≈1/25")
• 2.0mm ≈ 5/64"
• 3.0mm ≈ 1/8"
• 6.0mm ≈ 15/64" (≈1/4")
• 10mm ≈ 3/8"
• 12mm ≈ 15/32" (≈1/2")

Select the diameter in the variant dropdown above to see all available sizes.

Yes. Clear heat shrink tubing is widely used in electronics assembly and repair — including PCB lead insulation, component strain relief, and wire-to-board connections. The fine sizes (0.6mm–2.0mm) are particularly suited to small-gauge signal wires and component leads found in hobby electronics, Arduino/Raspberry Pi projects, and DIY sensor builds. The transparent finish makes it easy to verify connections without removing the tubing.

For individual wire splices or solder joints, typically 20–50mm (≈1–2") per joint is sufficient. For longer cable runs or harness bundling, measure the total run length and add 10–15% for trimming and overlap. The 10m length option is generally the most economical for larger jobs or workshop stock, while the 1m option suits small repairs or prototyping where only a few joints need covering.