Heat Shrink Tubing – Dia. 1mm to 50mm, Wire Sleeve for Electrical & DIY Projects - HomeDIYer
Heat Shrink Tubing – Dia. 1mm to 50mm, Wire Sleeve for Electrical & DIY Projects - HomeDIYer
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Heat Shrink Tubing – Dia. 1mm to 50mm, Wire Sleeve for Electrical & DIY Projects - HomeDIYerHeat Shrink Tubing – Dia. 1mm to 50mm, Wire Sleeve for Electrical & DIY Projects - HomeDIYer

Heat Shrink Tubing – Dia. 1mm to 50mm, Wire Sleeve for Electrical & DIY Projects

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Beschreibung

Heat Shrink Tubing in 20 Sizes — Reliable Wire Insulation & Protection for Every Project

Whether you're splicing automotive wiring, repairing household appliances, or organizing a tangled electronics bench, exposed wire ends and bare solder joints are a constant hazard. Electricians, hobbyists, and DIYers alike need a fast, clean way to insulate connections without bulky tape that unravels over time. This heat shrink tubing delivers a snug, professional-looking sleeve that stays put — no adhesive residue, no loose ends.

Each listing covers a single size variant ranging from Dia.1mm (≈3/64") to Dia.50mm (≈2"). Smaller diameters — 1mm through 5mm — come on a 5-meter (≈16.4 ft) roll, giving you plenty of material for fine electronics work. Larger diameters — 6mm through 50mm — come in a 1-meter (≈39.4 in) length, sized for cable bundles, conduit terminations, and connector boots. The tubing is made from polyolefin, a flame-retardant, RoHS-compliant material with a typical 2:1 shrink ratio.

Typical use cases include automotive wire harness repair, marine cable protection, PCB lead insulation, and DIY electrical project wire management. The wide size range means you can sleeve everything from a delicate 1mm sensor wire to a 50mm cable bundle with a single supplier.

🔌 Compatible with: Copper wire, stranded & solid conductors, solder joints, terminal connectors, cable bundles, and most round cross-section components within the listed diameter range.

✅ Key Features of These Heat Shrink Tubing Wire Sleeves

  • 📏 20 Sizes in One Product Line — Diameters from 1mm (≈3/64") to 50mm (≈2") cover fine sensor leads, standard hookup wire, and large cable bundles, eliminating the need to source from multiple suppliers.
  • 🔥 2:1 Shrink Ratio — Shrinks to approximately half its original inner diameter when heated, conforming tightly around irregular shapes and providing a secure, vibration-resistant sleeve for automotive and marine wire harness applications.
  • 🛡️ Flame-Retardant Polyolefin Material — Self-extinguishing construction resists ignition and slows flame spread, meeting the safety expectations of electrical insulation and DIY wiring projects.
  • 💧 Moisture & Abrasion Resistance — The recovered sleeve creates a barrier against humidity, light moisture, and mechanical abrasion, extending the service life of spliced connections in engine bays, outdoor enclosures, and workshop environments.
  • ✂️ Cut-to-Length Flexibility — Rolls and meter lengths let you cut exactly what you need for each connection. Smaller 5M rolls are ideal for PCB lead insulation and electronics bench work; 1M lengths suit single large-diameter applications.
  • ⚡ Low-Voltage Rated Construction — Suitable for general low-voltage wiring up to typically 600V, covering the majority of residential, automotive, and hobbyist electrical wire sleeve applications.

📐 Technical Specifications — Heat Shrink Tubing Wire Sleeve

Material Polyolefin (flame-retardant, RoHS-compliant)
Shrink Ratio 2:1 (typically)
Available Diameters (before shrink) 1mm (≈3/64"), 2mm (≈5/64"), 3mm (≈1/8"), 4mm (≈5/32"), 5mm (≈3/16"), 6mm (≈1/4"), 8mm (≈5/16"), 10mm (≈3/8"), 12mm (≈15/32"), 15mm (≈19/32"), 16mm (≈5/8"), 18mm (≈23/32"), 20mm (≈25/32"), 25mm (≈1"), 28mm (≈1-1/8"), 30mm (≈1-3/16"), 35mm (≈1-3/8"), 40mm (≈1-9/16"), 45mm (≈1-3/4"), 50mm (≈2")
Length per Unit 5M (≈16.4 ft) for Dia.1–5mm; 1M (≈39.4 in) for Dia.6–50mm
Shrink Temperature Typically 90°C–120°C (194°F–248°F)
Voltage Rating Typically up to 600V (low-voltage applications)
Color See variant options
Wall Thickness (recovered) See variant options / Contact us to confirm
Application Method Heat gun recommended; hair dryer may work for smaller diameters
Compliance RoHS-compliant (typically); confirm for specific regulatory requirements
⚠️ Size tip: Select a tube diameter 1.2–1.5× larger than your wire's outer diameter before shrinking. When in doubt, size up — you can always apply more heat, but you cannot un-shrink a tube that's too small.

❓ Frequently Asked Questions

How do I choose the right diameter heat shrink tubing for my wire?

Measure the outer diameter of your wire or connector before shrinking. Choose a tube whose inner diameter (before shrink) is typically 1.2–1.5× the wire's outer diameter. For example, a 4mm wire generally works well with the Dia.6mm variant. After shrinking at a 2:1 ratio, the tube will conform tightly around the wire. When in inches: a 1/4" (≈6mm) wire typically fits the Dia.8mm (≈5/16") option.

What is the shrink ratio, and what does it mean for my project?

This tubing generally has a 2:1 shrink ratio, meaning it shrinks to approximately half its original inner diameter when heat is applied. A Dia.10mm tube will recover to roughly 5mm. Always verify the final recovered diameter against your component size before cutting large quantities.

What temperature do I need to shrink this tubing, and can I use a hair dryer?

Polyolefin heat shrink tubing typically activates between 90°C–120°C (194°F–248°F) and fully recovers around 120°C (248°F). A heat gun is recommended for even, controlled shrinking. A hair dryer may work for smaller diameters (Dia.1–3mm) but often lacks the sustained heat output for larger sizes. Avoid open flames, which can scorch the tubing unevenly.

Can this heat shrink tubing be used outdoors or in wet environments?

Standard polyolefin tubing provides good moisture resistance and is suitable for most indoor and light outdoor applications — garden lighting, outdoor speaker wiring, and similar projects. For fully waterproof connections (marine, underground, or submersed), consider adhesive-lined (dual-wall) heat shrink tubing instead, which creates a sealed barrier against water ingress.

Is this tubing compatible with automotive wiring and under-hood use?

Yes. Heat shrink tubing is widely used in automotive wire harness repair, connector insulation, and terminal protection. The tubing is generally rated to withstand typical under-hood temperature ranges for standard wiring runs. For high-heat zones near the exhaust or engine block, confirm the specific continuous-use temperature rating before installation.

What is the difference between the 5M and 1M length options?

Smaller diameters (Dia.1mm–5mm) come in 5-meter (≈16.4 ft) rolls, ideal for electronics bench work, PCB lead insulation, and projects where you need longer runs of thin sleeving. Larger diameters (Dia.6mm–50mm) come in 1-meter (≈39.4 in) lengths, suited for cable bundles, conduit terminations, and connector boots where shorter sections are typically needed per connection.

What voltage rating does this heat shrink tubing carry?

Polyolefin heat shrink tubing of this type is generally rated for low-voltage applications up to 600V, covering the vast majority of residential, automotive, and hobbyist electrical projects. For high-voltage or industrial electrical installations, please contact us to confirm suitability for your specific application.

🛒 Select your size and length above, then add to cart — ships from our US warehouse.

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