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Whether you're chasing an electrical gremlin in your car, weatherproofing a marine connection, or tidying up a home wiring project, exposed wire splices and bare connectors are a liability. Moisture, abrasion, and vibration can degrade unprotected joints fast — and tracing a failed connection after the fact costs far more time than protecting it upfront. This green heat shrink tubing is built for DIYers, hobbyists, electricians, and automotive technicians who need a dependable, color-coded insulation solution they can trust.
Each listing covers a single continuous length of tubing in your chosen diameter and length combination. Diameters range from φ0.6mm (≈0.024") to φ80mm (≈3.15"), and lengths are available from 1M (≈3.3 ft) up to 50M (≈164 ft). The tubing is made from polyolefin — a material known for its flexibility, chemical resistance, and stable performance across a wide temperature range. With a 2:1 shrink ratio, each size recovers to approximately half its original inner diameter when heat is applied, creating a snug, moisture-resistant sleeve around your wire or connector.
Typical use cases include automotive wire harness repair and splice insulation, marine and outdoor electrical connections where moisture ingress is a concern, and electronics prototyping or hobby wiring where color-coded green sleeving helps with circuit identification. The green color also makes it easy to distinguish ground wires or safety-earth conductors in multi-wire assemblies — a common convention in industrial and residential wiring.
| Material | Polyolefin |
|---|---|
| Color | Green |
| Shrink Ratio | 2:1 |
| Diameter Range (Supplied) | φ0.6mm (≈0.024") – φ80mm (≈3.15") |
| Available Lengths | 1M, 3M, 5M, 10M, 20M, 30M, 50M |
| Shrink Temperature | Typically 90°C–120°C (194°F–248°F) |
| Operating Temperature | Generally -55°C to +125°C (-67°F to +257°F) |
| Voltage Rating | See variant options / Contact us to confirm |
| Flame Retardancy | See variant options / Contact us to confirm |
| Recommended Tool | Heat gun or hot-air station |
| Quantity per Order | 1 continuous length per variant selected |
Measure the outer diameter of your wire or connector before shrinking. Choose a tubing size whose recovered (post-shrink) diameter is slightly smaller than your wire. For example, φ4mm tubing typically recovers to about φ2mm. When in doubt, size up — you can always apply more heat, but you cannot reverse over-shrinking.
A 2:1 ratio means the tubing shrinks to approximately half its original inner diameter when heat is applied. For example, φ10mm tubing will generally recover to around φ5mm after shrinking. This ratio is the most common for general-purpose electrical insulation work.
Yes. This tubing is designed to provide moisture resistance and is suitable for outdoor, marine, and automotive environments where exposure to water or humidity is a concern. For fully submersed applications, we recommend confirming suitability with your specific use case. If you need adhesive-lined (dual-wall) tubing for a fully sealed connection, contact us.
This tubing typically requires a heat source of around 90°C–120°C (194°F–248°F) to begin shrinking, and fully recovers at approximately 120°C (248°F). A heat gun is recommended for even, controlled shrinking. Avoid open flames where possible, as uneven heat can cause bubbling or uneven recovery.
Yes. This heat shrink tubing is commonly used for automotive wire splices, connector insulation, and harness protection. Its moisture resistance makes it well-suited for under-hood and underbody applications. The green color is also useful for identifying ground wires in automotive harnesses.
This tubing is generally rated for continuous use between -55°C and +125°C (-67°F to +257°F), making it suitable for most indoor and outdoor electrical applications. This covers typical automotive, marine, and industrial environments. Contact us to confirm ratings for extreme-temperature use cases.
Divide the mm value by 25.4 to get inches. Common quick conversions for this product's range:
Remember: the listed diameter is the supplied (pre-shrink) size. The recovered diameter will be approximately half these values.
Ships within 48 hours · Estimated delivery Jul 6 - Jul 11
US$40
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